* [PATCHv2 for-next 0/5] RTRS renaming
@ 2022-01-03 13:33 Jack Wang
2022-01-03 13:33 ` [PATCHv2 for-next 1/5] RDMA/rtrs: Rename rtrs_sess to rtrs_path Jack Wang
` (4 more replies)
0 siblings, 5 replies; 13+ messages in thread
From: Jack Wang @ 2022-01-03 13:33 UTC (permalink / raw)
To: linux-rdma; +Cc: bvanassche, leon, jgg, haris.iqbal, jinpu.wang
Hi Jason, hi Leon,
This patchset from Vaishali, renames a few internal structures to make
the code easier to understand.
rtrs_sess is in fact a path. rtrs_clt/_srv is in fact a session.
This is a mess and makes it difficult to get into the code.
The patchset is based on rdma/for-next:
c8f476da84ad ("Merge branch 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux")
v2: merge first 3 patches to one to be bisectable. (Thanks Guoqing)
v1: https://lore.kernel.org/linux-rdma/aac5544b-279d-35f5-6f19-eb0301294122@linux.dev/T/#md5be427877cbfcb1741cccea4d081df09ae18561
Happy New Year!
Vaishali Thakkar (5):
RDMA/rtrs: Rename rtrs_sess to rtrs_path
RDMA/rtrs-srv: Rename rtrs_srv_sess to rtrs_srv_path
RDMA/rtrs-clt: Rename rtrs_clt_sess to rtrs_clt_path
RDMA/rtrs-srv: Rename rtrs_srv to rtrs_srv_sess
RDMA/rtrs-clt: Rename rtrs_clt to rtrs_clt_sess
drivers/block/rnbd/rnbd-clt.c | 4 +-
drivers/block/rnbd/rnbd-clt.h | 2 +-
drivers/block/rnbd/rnbd-srv.c | 8 +-
drivers/block/rnbd/rnbd-srv.h | 2 +-
drivers/infiniband/ulp/rtrs/rtrs-clt-stats.c | 8 +-
drivers/infiniband/ulp/rtrs/rtrs-clt-sysfs.c | 145 +--
drivers/infiniband/ulp/rtrs/rtrs-clt.c | 1083 +++++++++---------
drivers/infiniband/ulp/rtrs/rtrs-clt.h | 41 +-
drivers/infiniband/ulp/rtrs/rtrs-pri.h | 14 +-
drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c | 121 +-
drivers/infiniband/ulp/rtrs/rtrs-srv.c | 664 +++++------
drivers/infiniband/ulp/rtrs/rtrs-srv.h | 16 +-
drivers/infiniband/ulp/rtrs/rtrs.c | 98 +-
drivers/infiniband/ulp/rtrs/rtrs.h | 34 +-
14 files changed, 1138 insertions(+), 1102 deletions(-)
--
2.25.1
^ permalink raw reply [flat|nested] 13+ messages in thread
* [PATCHv2 for-next 1/5] RDMA/rtrs: Rename rtrs_sess to rtrs_path
2022-01-03 13:33 [PATCHv2 for-next 0/5] RTRS renaming Jack Wang
@ 2022-01-03 13:33 ` Jack Wang
2022-01-03 13:33 ` [PATCHv2 for-next 2/5] RDMA/rtrs-srv: Rename rtrs_srv_sess to rtrs_srv_path Jack Wang
` (3 subsequent siblings)
4 siblings, 0 replies; 13+ messages in thread
From: Jack Wang @ 2022-01-03 13:33 UTC (permalink / raw)
To: linux-rdma
Cc: bvanassche, leon, jgg, haris.iqbal, jinpu.wang, Vaishali Thakkar
From: Vaishali Thakkar <vaishali.thakkar@ionos.com>
rtrs_sess is in fact a path. This makes it confusing
and difficult to get into the code. So let's rename
the structure and related use cases of it.
Coccinelle was used to do the transformation for
most of the occurrences and remaining ones were
handled manually.
Signed-off-by: Vaishali Thakkar <vaishali.thakkar@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
---
drivers/infiniband/ulp/rtrs/rtrs-clt-stats.c | 4 +-
drivers/infiniband/ulp/rtrs/rtrs-clt.c | 66 ++++++-------
drivers/infiniband/ulp/rtrs/rtrs-clt.h | 4 +-
drivers/infiniband/ulp/rtrs/rtrs-pri.h | 14 +--
drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c | 6 +-
drivers/infiniband/ulp/rtrs/rtrs-srv.c | 46 ++++-----
drivers/infiniband/ulp/rtrs/rtrs-srv.h | 2 +-
drivers/infiniband/ulp/rtrs/rtrs.c | 98 ++++++++++----------
8 files changed, 120 insertions(+), 120 deletions(-)
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt-stats.c b/drivers/infiniband/ulp/rtrs/rtrs-clt-stats.c
index 76e4352fe3f6..608069b7c303 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-clt-stats.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-clt-stats.c
@@ -13,7 +13,7 @@
void rtrs_clt_update_wc_stats(struct rtrs_clt_con *con)
{
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.sess);
+ struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
struct rtrs_clt_stats *stats = sess->stats;
struct rtrs_clt_stats_pcpu *s;
int cpu;
@@ -180,7 +180,7 @@ static inline void rtrs_clt_update_rdma_stats(struct rtrs_clt_stats *stats,
void rtrs_clt_update_all_stats(struct rtrs_clt_io_req *req, int dir)
{
struct rtrs_clt_con *con = req->con;
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.sess);
+ struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
struct rtrs_clt_stats *stats = sess->stats;
unsigned int len;
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt.c b/drivers/infiniband/ulp/rtrs/rtrs-clt.c
index e39709dee179..e767692ec221 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-clt.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-clt.c
@@ -298,7 +298,7 @@ static bool rtrs_clt_change_state_from_to(struct rtrs_clt_sess *sess,
static void rtrs_rdma_error_recovery(struct rtrs_clt_con *con)
{
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.sess);
+ struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
if (rtrs_clt_change_state_from_to(sess,
RTRS_CLT_CONNECTED,
@@ -330,7 +330,7 @@ static void rtrs_clt_fast_reg_done(struct ib_cq *cq, struct ib_wc *wc)
struct rtrs_clt_con *con = to_clt_con(wc->qp->qp_context);
if (wc->status != IB_WC_SUCCESS) {
- rtrs_err(con->c.sess, "Failed IB_WR_REG_MR: %s\n",
+ rtrs_err(con->c.path, "Failed IB_WR_REG_MR: %s\n",
ib_wc_status_msg(wc->status));
rtrs_rdma_error_recovery(con);
}
@@ -350,7 +350,7 @@ static void rtrs_clt_inv_rkey_done(struct ib_cq *cq, struct ib_wc *wc)
struct rtrs_clt_con *con = to_clt_con(wc->qp->qp_context);
if (wc->status != IB_WC_SUCCESS) {
- rtrs_err(con->c.sess, "Failed IB_WR_LOCAL_INV: %s\n",
+ rtrs_err(con->c.path, "Failed IB_WR_LOCAL_INV: %s\n",
ib_wc_status_msg(wc->status));
rtrs_rdma_error_recovery(con);
}
@@ -387,7 +387,7 @@ static void complete_rdma_req(struct rtrs_clt_io_req *req, int errno,
return;
if (WARN_ON(!req->con))
return;
- sess = to_clt_sess(con->c.sess);
+ sess = to_clt_sess(con->c.path);
if (req->sg_cnt) {
if (req->dir == DMA_FROM_DEVICE && req->need_inv) {
@@ -417,7 +417,7 @@ static void complete_rdma_req(struct rtrs_clt_io_req *req, int errno,
refcount_inc(&req->ref);
err = rtrs_inv_rkey(req);
if (err) {
- rtrs_err(con->c.sess, "Send INV WR key=%#x: %d\n",
+ rtrs_err(con->c.path, "Send INV WR key=%#x: %d\n",
req->mr->rkey, err);
} else if (can_wait) {
wait_for_completion(&req->inv_comp);
@@ -445,7 +445,7 @@ static void complete_rdma_req(struct rtrs_clt_io_req *req, int errno,
req->con = NULL;
if (errno) {
- rtrs_err_rl(con->c.sess, "IO request failed: error=%d path=%s [%s:%u] notify=%d\n",
+ rtrs_err_rl(con->c.path, "IO request failed: error=%d path=%s [%s:%u] notify=%d\n",
errno, kobject_name(&sess->kobj), sess->hca_name,
sess->hca_port, notify);
}
@@ -459,12 +459,12 @@ static int rtrs_post_send_rdma(struct rtrs_clt_con *con,
struct rtrs_rbuf *rbuf, u32 off,
u32 imm, struct ib_send_wr *wr)
{
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.sess);
+ struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
enum ib_send_flags flags;
struct ib_sge sge;
if (!req->sg_size) {
- rtrs_wrn(con->c.sess,
+ rtrs_wrn(con->c.path,
"Doing RDMA Write failed, no data supplied\n");
return -EINVAL;
}
@@ -507,21 +507,21 @@ static void rtrs_clt_recv_done(struct rtrs_clt_con *con, struct ib_wc *wc)
{
struct rtrs_iu *iu;
int err;
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.sess);
+ struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
WARN_ON((sess->flags & RTRS_MSG_NEW_RKEY_F) == 0);
iu = container_of(wc->wr_cqe, struct rtrs_iu,
cqe);
err = rtrs_iu_post_recv(&con->c, iu);
if (err) {
- rtrs_err(con->c.sess, "post iu failed %d\n", err);
+ rtrs_err(con->c.path, "post iu failed %d\n", err);
rtrs_rdma_error_recovery(con);
}
}
static void rtrs_clt_rkey_rsp_done(struct rtrs_clt_con *con, struct ib_wc *wc)
{
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.sess);
+ struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
struct rtrs_msg_rkey_rsp *msg;
u32 imm_type, imm_payload;
bool w_inval = false;
@@ -534,7 +534,7 @@ static void rtrs_clt_rkey_rsp_done(struct rtrs_clt_con *con, struct ib_wc *wc)
iu = container_of(wc->wr_cqe, struct rtrs_iu, cqe);
if (wc->byte_len < sizeof(*msg)) {
- rtrs_err(con->c.sess, "rkey response is malformed: size %d\n",
+ rtrs_err(con->c.path, "rkey response is malformed: size %d\n",
wc->byte_len);
goto out;
}
@@ -600,7 +600,7 @@ static int rtrs_post_recv_empty_x2(struct rtrs_con *con, struct ib_cqe *cqe)
static void rtrs_clt_rdma_done(struct ib_cq *cq, struct ib_wc *wc)
{
struct rtrs_clt_con *con = to_clt_con(wc->qp->qp_context);
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.sess);
+ struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
u32 imm_type, imm_payload;
bool w_inval = false;
int err;
@@ -646,7 +646,7 @@ static void rtrs_clt_rdma_done(struct ib_cq *cq, struct ib_wc *wc)
if (sess->flags & RTRS_MSG_NEW_RKEY_F)
return rtrs_clt_recv_done(con, wc);
} else {
- rtrs_wrn(con->c.sess, "Unknown IMM type %u\n",
+ rtrs_wrn(con->c.path, "Unknown IMM type %u\n",
imm_type);
}
if (w_inval)
@@ -658,7 +658,7 @@ static void rtrs_clt_rdma_done(struct ib_cq *cq, struct ib_wc *wc)
else
err = rtrs_post_recv_empty(&con->c, &io_comp_cqe);
if (err) {
- rtrs_err(con->c.sess, "rtrs_post_recv_empty(): %d\n",
+ rtrs_err(con->c.path, "rtrs_post_recv_empty(): %d\n",
err);
rtrs_rdma_error_recovery(con);
}
@@ -693,7 +693,7 @@ static void rtrs_clt_rdma_done(struct ib_cq *cq, struct ib_wc *wc)
static int post_recv_io(struct rtrs_clt_con *con, size_t q_size)
{
int err, i;
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.sess);
+ struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
for (i = 0; i < q_size; i++) {
if (sess->flags & RTRS_MSG_NEW_RKEY_F) {
@@ -1013,7 +1013,7 @@ static int rtrs_post_rdma_write_sg(struct rtrs_clt_con *con,
u32 size, u32 imm, struct ib_send_wr *wr,
struct ib_send_wr *tail)
{
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.sess);
+ struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
struct ib_sge *sge = req->sge;
enum ib_send_flags flags;
struct scatterlist *sg;
@@ -1074,7 +1074,7 @@ static int rtrs_map_sg_fr(struct rtrs_clt_io_req *req, size_t count)
static int rtrs_clt_write_req(struct rtrs_clt_io_req *req)
{
struct rtrs_clt_con *con = req->con;
- struct rtrs_sess *s = con->c.sess;
+ struct rtrs_path *s = con->c.path;
struct rtrs_clt_sess *sess = to_clt_sess(s);
struct rtrs_msg_rdma_write *msg;
@@ -1168,7 +1168,7 @@ static int rtrs_clt_write_req(struct rtrs_clt_io_req *req)
static int rtrs_clt_read_req(struct rtrs_clt_io_req *req)
{
struct rtrs_clt_con *con = req->con;
- struct rtrs_sess *s = con->c.sess;
+ struct rtrs_path *s = con->c.path;
struct rtrs_clt_sess *sess = to_clt_sess(s);
struct rtrs_msg_rdma_read *msg;
struct rtrs_ib_dev *dev = sess->s.dev;
@@ -1601,7 +1601,7 @@ static int create_con(struct rtrs_clt_sess *sess, unsigned int cid)
/* Map first two connections to the first CPU */
con->cpu = (cid ? cid - 1 : 0) % nr_cpu_ids;
con->c.cid = cid;
- con->c.sess = &sess->s;
+ con->c.path = &sess->s;
/* Align with srv, init as 1 */
atomic_set(&con->c.wr_cnt, 1);
mutex_init(&con->con_mutex);
@@ -1613,7 +1613,7 @@ static int create_con(struct rtrs_clt_sess *sess, unsigned int cid)
static void destroy_con(struct rtrs_clt_con *con)
{
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.sess);
+ struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
sess->s.con[con->c.cid] = NULL;
mutex_destroy(&con->con_mutex);
@@ -1622,7 +1622,7 @@ static void destroy_con(struct rtrs_clt_con *con)
static int create_con_cq_qp(struct rtrs_clt_con *con)
{
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.sess);
+ struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
u32 max_send_wr, max_recv_wr, cq_num, max_send_sge, wr_limit;
int err, cq_vector;
struct rtrs_msg_rkey_rsp *rsp;
@@ -1711,7 +1711,7 @@ static int create_con_cq_qp(struct rtrs_clt_con *con)
static void destroy_con_cq_qp(struct rtrs_clt_con *con)
{
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.sess);
+ struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
/*
* Be careful here: destroy_con_cq_qp() can be called even
@@ -1745,7 +1745,7 @@ static void destroy_cm(struct rtrs_clt_con *con)
static int rtrs_rdma_addr_resolved(struct rtrs_clt_con *con)
{
- struct rtrs_sess *s = con->c.sess;
+ struct rtrs_path *s = con->c.path;
int err;
mutex_lock(&con->con_mutex);
@@ -1764,7 +1764,7 @@ static int rtrs_rdma_addr_resolved(struct rtrs_clt_con *con)
static int rtrs_rdma_route_resolved(struct rtrs_clt_con *con)
{
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.sess);
+ struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
struct rtrs_clt *clt = sess->clt;
struct rtrs_msg_conn_req msg;
struct rdma_conn_param param;
@@ -1799,7 +1799,7 @@ static int rtrs_rdma_route_resolved(struct rtrs_clt_con *con)
static int rtrs_rdma_conn_established(struct rtrs_clt_con *con,
struct rdma_cm_event *ev)
{
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.sess);
+ struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
struct rtrs_clt *clt = sess->clt;
const struct rtrs_msg_conn_rsp *msg;
u16 version, queue_depth;
@@ -1887,7 +1887,7 @@ static int rtrs_rdma_conn_established(struct rtrs_clt_con *con,
static inline void flag_success_on_conn(struct rtrs_clt_con *con)
{
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.sess);
+ struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
atomic_inc(&sess->connected_cnt);
con->cm_err = 1;
@@ -1896,7 +1896,7 @@ static inline void flag_success_on_conn(struct rtrs_clt_con *con)
static int rtrs_rdma_conn_rejected(struct rtrs_clt_con *con,
struct rdma_cm_event *ev)
{
- struct rtrs_sess *s = con->c.sess;
+ struct rtrs_path *s = con->c.path;
const struct rtrs_msg_conn_rsp *msg;
const char *rej_msg;
int status, errno;
@@ -1937,7 +1937,7 @@ static inline void flag_error_on_conn(struct rtrs_clt_con *con, int cm_err)
if (con->cm_err == 1) {
struct rtrs_clt_sess *sess;
- sess = to_clt_sess(con->c.sess);
+ sess = to_clt_sess(con->c.path);
if (atomic_dec_and_test(&sess->connected_cnt))
wake_up(&sess->state_wq);
@@ -1949,7 +1949,7 @@ static int rtrs_clt_rdma_cm_handler(struct rdma_cm_id *cm_id,
struct rdma_cm_event *ev)
{
struct rtrs_clt_con *con = cm_id->context;
- struct rtrs_sess *s = con->c.sess;
+ struct rtrs_path *s = con->c.path;
struct rtrs_clt_sess *sess = to_clt_sess(s);
int cm_err = 0;
@@ -2020,7 +2020,7 @@ static int rtrs_clt_rdma_cm_handler(struct rdma_cm_id *cm_id,
static int create_cm(struct rtrs_clt_con *con)
{
- struct rtrs_sess *s = con->c.sess;
+ struct rtrs_path *s = con->c.path;
struct rtrs_clt_sess *sess = to_clt_sess(s);
struct rdma_cm_id *cm_id;
int err;
@@ -2375,7 +2375,7 @@ static int init_conns(struct rtrs_clt_sess *sess)
static void rtrs_clt_info_req_done(struct ib_cq *cq, struct ib_wc *wc)
{
struct rtrs_clt_con *con = to_clt_con(wc->qp->qp_context);
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.sess);
+ struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
struct rtrs_iu *iu;
iu = container_of(wc->wr_cqe, struct rtrs_iu, cqe);
@@ -2456,7 +2456,7 @@ static int process_info_rsp(struct rtrs_clt_sess *sess,
static void rtrs_clt_info_rsp_done(struct ib_cq *cq, struct ib_wc *wc)
{
struct rtrs_clt_con *con = to_clt_con(wc->qp->qp_context);
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.sess);
+ struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
struct rtrs_msg_info_rsp *msg;
enum rtrs_clt_state state;
struct rtrs_iu *iu;
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt.h b/drivers/infiniband/ulp/rtrs/rtrs-clt.h
index 9afffccff973..57579b2c91d1 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-clt.h
+++ b/drivers/infiniband/ulp/rtrs/rtrs-clt.h
@@ -125,7 +125,7 @@ struct rtrs_rbuf {
};
struct rtrs_clt_sess {
- struct rtrs_sess s;
+ struct rtrs_path s;
struct rtrs_clt *clt;
wait_queue_head_t state_wq;
enum rtrs_clt_state state;
@@ -186,7 +186,7 @@ static inline struct rtrs_clt_con *to_clt_con(struct rtrs_con *c)
return container_of(c, struct rtrs_clt_con, c);
}
-static inline struct rtrs_clt_sess *to_clt_sess(struct rtrs_sess *s)
+static inline struct rtrs_clt_sess *to_clt_sess(struct rtrs_path *s)
{
return container_of(s, struct rtrs_clt_sess, s);
}
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-pri.h b/drivers/infiniband/ulp/rtrs/rtrs-pri.h
index 78eac9a4f703..016e136f0765 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-pri.h
+++ b/drivers/infiniband/ulp/rtrs/rtrs-pri.h
@@ -90,7 +90,7 @@ struct rtrs_ib_dev {
};
struct rtrs_con {
- struct rtrs_sess *sess;
+ struct rtrs_path *path;
struct ib_qp *qp;
struct ib_cq *cq;
struct rdma_cm_id *cm_id;
@@ -100,7 +100,7 @@ struct rtrs_con {
atomic_t sq_wr_avail;
};
-struct rtrs_sess {
+struct rtrs_path {
struct list_head entry;
struct sockaddr_storage dst_addr;
struct sockaddr_storage src_addr;
@@ -313,19 +313,19 @@ int rtrs_iu_post_rdma_write_imm(struct rtrs_con *con, struct rtrs_iu *iu,
int rtrs_post_recv_empty(struct rtrs_con *con, struct ib_cqe *cqe);
-int rtrs_cq_qp_create(struct rtrs_sess *sess, struct rtrs_con *con,
+int rtrs_cq_qp_create(struct rtrs_path *path, struct rtrs_con *con,
u32 max_send_sge, int cq_vector, int nr_cqe,
u32 max_send_wr, u32 max_recv_wr,
enum ib_poll_context poll_ctx);
void rtrs_cq_qp_destroy(struct rtrs_con *con);
-void rtrs_init_hb(struct rtrs_sess *sess, struct ib_cqe *cqe,
+void rtrs_init_hb(struct rtrs_path *path, struct ib_cqe *cqe,
unsigned int interval_ms, unsigned int missed_max,
void (*err_handler)(struct rtrs_con *con),
struct workqueue_struct *wq);
-void rtrs_start_hb(struct rtrs_sess *sess);
-void rtrs_stop_hb(struct rtrs_sess *sess);
-void rtrs_send_hb_ack(struct rtrs_sess *sess);
+void rtrs_start_hb(struct rtrs_path *path);
+void rtrs_stop_hb(struct rtrs_path *path);
+void rtrs_send_hb_ack(struct rtrs_path *path);
void rtrs_rdma_dev_pd_init(enum ib_pd_flags pd_flags,
struct rtrs_rdma_dev_pd *pool);
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c b/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c
index 9c43ce5ba1c1..e9fa67365b2b 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c
@@ -37,7 +37,7 @@ static ssize_t rtrs_srv_disconnect_store(struct kobject *kobj,
const char *buf, size_t count)
{
struct rtrs_srv_sess *sess;
- struct rtrs_sess *s;
+ struct rtrs_path *s;
char str[MAXHOSTNAMELEN];
sess = container_of(kobj, struct rtrs_srv_sess, kobj);
@@ -230,7 +230,7 @@ static struct kobj_type ktype_stats = {
static int rtrs_srv_create_stats_files(struct rtrs_srv_sess *sess)
{
int err;
- struct rtrs_sess *s = &sess->s;
+ struct rtrs_path *s = &sess->s;
err = kobject_init_and_add(&sess->stats->kobj_stats, &ktype_stats,
&sess->kobj, "stats");
@@ -258,7 +258,7 @@ static int rtrs_srv_create_stats_files(struct rtrs_srv_sess *sess)
int rtrs_srv_create_sess_files(struct rtrs_srv_sess *sess)
{
struct rtrs_srv *srv = sess->srv;
- struct rtrs_sess *s = &sess->s;
+ struct rtrs_path *s = &sess->s;
char str[NAME_MAX];
int err;
struct rtrs_addr path = {
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-srv.c b/drivers/infiniband/ulp/rtrs/rtrs-srv.c
index 7df71f8cf149..de4f214233b6 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-srv.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-srv.c
@@ -62,7 +62,7 @@ static inline struct rtrs_srv_con *to_srv_con(struct rtrs_con *c)
return container_of(c, struct rtrs_srv_con, c);
}
-static inline struct rtrs_srv_sess *to_srv_sess(struct rtrs_sess *s)
+static inline struct rtrs_srv_sess *to_srv_sess(struct rtrs_path *s)
{
return container_of(s, struct rtrs_srv_sess, s);
}
@@ -180,7 +180,7 @@ static inline void rtrs_srv_put_ops_ids(struct rtrs_srv_sess *sess)
static void rtrs_srv_reg_mr_done(struct ib_cq *cq, struct ib_wc *wc)
{
struct rtrs_srv_con *con = to_srv_con(wc->qp->qp_context);
- struct rtrs_sess *s = con->c.sess;
+ struct rtrs_path *s = con->c.path;
struct rtrs_srv_sess *sess = to_srv_sess(s);
if (wc->status != IB_WC_SUCCESS) {
@@ -197,7 +197,7 @@ static struct ib_cqe local_reg_cqe = {
static int rdma_write_sg(struct rtrs_srv_op *id)
{
- struct rtrs_sess *s = id->con->c.sess;
+ struct rtrs_path *s = id->con->c.path;
struct rtrs_srv_sess *sess = to_srv_sess(s);
dma_addr_t dma_addr = sess->dma_addr[id->msg_id];
struct rtrs_srv_mr *srv_mr;
@@ -341,7 +341,7 @@ static int rdma_write_sg(struct rtrs_srv_op *id)
static int send_io_resp_imm(struct rtrs_srv_con *con, struct rtrs_srv_op *id,
int errno)
{
- struct rtrs_sess *s = con->c.sess;
+ struct rtrs_path *s = con->c.path;
struct rtrs_srv_sess *sess = to_srv_sess(s);
struct ib_send_wr inv_wr, *wr = NULL;
struct ib_rdma_wr imm_wr;
@@ -482,14 +482,14 @@ bool rtrs_srv_resp_rdma(struct rtrs_srv_op *id, int status)
{
struct rtrs_srv_sess *sess;
struct rtrs_srv_con *con;
- struct rtrs_sess *s;
+ struct rtrs_path *s;
int err;
if (WARN_ON(!id))
return true;
con = id->con;
- s = con->c.sess;
+ s = con->c.path;
sess = to_srv_sess(s);
id->status = status;
@@ -564,7 +564,7 @@ static void unmap_cont_bufs(struct rtrs_srv_sess *sess)
static int map_cont_bufs(struct rtrs_srv_sess *sess)
{
struct rtrs_srv *srv = sess->srv;
- struct rtrs_sess *ss = &sess->s;
+ struct rtrs_path *ss = &sess->s;
int i, mri, err, mrs_num;
unsigned int chunk_bits;
int chunks_per_mr = 1;
@@ -677,7 +677,7 @@ static int map_cont_bufs(struct rtrs_srv_sess *sess)
static void rtrs_srv_hb_err_handler(struct rtrs_con *c)
{
- close_sess(to_srv_sess(c->sess));
+ close_sess(to_srv_sess(c->path));
}
static void rtrs_srv_init_hb(struct rtrs_srv_sess *sess)
@@ -702,7 +702,7 @@ static void rtrs_srv_stop_hb(struct rtrs_srv_sess *sess)
static void rtrs_srv_info_rsp_done(struct ib_cq *cq, struct ib_wc *wc)
{
struct rtrs_srv_con *con = to_srv_con(wc->qp->qp_context);
- struct rtrs_sess *s = con->c.sess;
+ struct rtrs_path *s = con->c.path;
struct rtrs_srv_sess *sess = to_srv_sess(s);
struct rtrs_iu *iu;
@@ -788,7 +788,7 @@ static int rtrs_rdma_do_reject(struct rdma_cm_id *cm_id, int errno);
static int process_info_req(struct rtrs_srv_con *con,
struct rtrs_msg_info_req *msg)
{
- struct rtrs_sess *s = con->c.sess;
+ struct rtrs_path *s = con->c.path;
struct rtrs_srv_sess *sess = to_srv_sess(s);
struct ib_send_wr *reg_wr = NULL;
struct rtrs_msg_info_rsp *rsp;
@@ -889,7 +889,7 @@ static int process_info_req(struct rtrs_srv_con *con,
static void rtrs_srv_info_req_done(struct ib_cq *cq, struct ib_wc *wc)
{
struct rtrs_srv_con *con = to_srv_con(wc->qp->qp_context);
- struct rtrs_sess *s = con->c.sess;
+ struct rtrs_path *s = con->c.path;
struct rtrs_srv_sess *sess = to_srv_sess(s);
struct rtrs_msg_info_req *msg;
struct rtrs_iu *iu;
@@ -932,7 +932,7 @@ static void rtrs_srv_info_req_done(struct ib_cq *cq, struct ib_wc *wc)
static int post_recv_info_req(struct rtrs_srv_con *con)
{
- struct rtrs_sess *s = con->c.sess;
+ struct rtrs_path *s = con->c.path;
struct rtrs_srv_sess *sess = to_srv_sess(s);
struct rtrs_iu *rx_iu;
int err;
@@ -969,7 +969,7 @@ static int post_recv_io(struct rtrs_srv_con *con, size_t q_size)
static int post_recv_sess(struct rtrs_srv_sess *sess)
{
struct rtrs_srv *srv = sess->srv;
- struct rtrs_sess *s = &sess->s;
+ struct rtrs_path *s = &sess->s;
size_t q_size;
int err, cid;
@@ -993,7 +993,7 @@ static void process_read(struct rtrs_srv_con *con,
struct rtrs_msg_rdma_read *msg,
u32 buf_id, u32 off)
{
- struct rtrs_sess *s = con->c.sess;
+ struct rtrs_path *s = con->c.path;
struct rtrs_srv_sess *sess = to_srv_sess(s);
struct rtrs_srv *srv = sess->srv;
struct rtrs_srv_ctx *ctx = srv->ctx;
@@ -1051,7 +1051,7 @@ static void process_write(struct rtrs_srv_con *con,
struct rtrs_msg_rdma_write *req,
u32 buf_id, u32 off)
{
- struct rtrs_sess *s = con->c.sess;
+ struct rtrs_path *s = con->c.path;
struct rtrs_srv_sess *sess = to_srv_sess(s);
struct rtrs_srv *srv = sess->srv;
struct rtrs_srv_ctx *ctx = srv->ctx;
@@ -1102,7 +1102,7 @@ static void process_write(struct rtrs_srv_con *con,
static void process_io_req(struct rtrs_srv_con *con, void *msg,
u32 id, u32 off)
{
- struct rtrs_sess *s = con->c.sess;
+ struct rtrs_path *s = con->c.path;
struct rtrs_srv_sess *sess = to_srv_sess(s);
struct rtrs_msg_rdma_hdr *hdr;
unsigned int type;
@@ -1137,7 +1137,7 @@ static void rtrs_srv_inv_rkey_done(struct ib_cq *cq, struct ib_wc *wc)
struct rtrs_srv_mr *mr =
container_of(wc->wr_cqe, typeof(*mr), inv_cqe);
struct rtrs_srv_con *con = to_srv_con(wc->qp->qp_context);
- struct rtrs_sess *s = con->c.sess;
+ struct rtrs_path *s = con->c.path;
struct rtrs_srv_sess *sess = to_srv_sess(s);
struct rtrs_srv *srv = sess->srv;
u32 msg_id, off;
@@ -1194,7 +1194,7 @@ static void rtrs_rdma_process_wr_wait_list(struct rtrs_srv_con *con)
static void rtrs_srv_rdma_done(struct ib_cq *cq, struct ib_wc *wc)
{
struct rtrs_srv_con *con = to_srv_con(wc->qp->qp_context);
- struct rtrs_sess *s = con->c.sess;
+ struct rtrs_path *s = con->c.path;
struct rtrs_srv_sess *sess = to_srv_sess(s);
struct rtrs_srv *srv = sess->srv;
u32 imm_type, imm_payload;
@@ -1633,7 +1633,7 @@ static int create_con(struct rtrs_srv_sess *sess,
unsigned int cid)
{
struct rtrs_srv *srv = sess->srv;
- struct rtrs_sess *s = &sess->s;
+ struct rtrs_path *s = &sess->s;
struct rtrs_srv_con *con;
u32 cq_num, max_send_wr, max_recv_wr, wr_limit;
@@ -1648,7 +1648,7 @@ static int create_con(struct rtrs_srv_sess *sess,
spin_lock_init(&con->rsp_wr_wait_lock);
INIT_LIST_HEAD(&con->rsp_wr_wait_list);
con->c.cm_id = cm_id;
- con->c.sess = &sess->s;
+ con->c.path = &sess->s;
con->c.cid = cid;
atomic_set(&con->c.wr_cnt, 1);
wr_limit = sess->s.dev->ib_dev->attrs.max_qp_wr;
@@ -1859,7 +1859,7 @@ static int rtrs_rdma_connect(struct rdma_cm_id *cm_id,
mutex_lock(&srv->paths_mutex);
sess = __find_sess(srv, &msg->sess_uuid);
if (sess) {
- struct rtrs_sess *s = &sess->s;
+ struct rtrs_path *s = &sess->s;
/* Session already holds a reference */
put_srv(srv);
@@ -1938,12 +1938,12 @@ static int rtrs_srv_rdma_cm_handler(struct rdma_cm_id *cm_id,
struct rdma_cm_event *ev)
{
struct rtrs_srv_sess *sess = NULL;
- struct rtrs_sess *s = NULL;
+ struct rtrs_path *s = NULL;
if (ev->event != RDMA_CM_EVENT_CONNECT_REQUEST) {
struct rtrs_con *c = cm_id->context;
- s = c->sess;
+ s = c->path;
sess = to_srv_sess(s);
}
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-srv.h b/drivers/infiniband/ulp/rtrs/rtrs-srv.h
index 7d403c12faf3..c2c08ec8d9e8 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-srv.h
+++ b/drivers/infiniband/ulp/rtrs/rtrs-srv.h
@@ -72,7 +72,7 @@ struct rtrs_srv_mr {
};
struct rtrs_srv_sess {
- struct rtrs_sess s;
+ struct rtrs_path s;
struct rtrs_srv *srv;
struct work_struct close_work;
enum rtrs_srv_state state;
diff --git a/drivers/infiniband/ulp/rtrs/rtrs.c b/drivers/infiniband/ulp/rtrs/rtrs.c
index 37952c8e768c..4da889103a5f 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs.c
@@ -69,16 +69,16 @@ EXPORT_SYMBOL_GPL(rtrs_iu_free);
int rtrs_iu_post_recv(struct rtrs_con *con, struct rtrs_iu *iu)
{
- struct rtrs_sess *sess = con->sess;
+ struct rtrs_path *path = con->path;
struct ib_recv_wr wr;
struct ib_sge list;
list.addr = iu->dma_addr;
list.length = iu->size;
- list.lkey = sess->dev->ib_pd->local_dma_lkey;
+ list.lkey = path->dev->ib_pd->local_dma_lkey;
if (list.length == 0) {
- rtrs_wrn(con->sess,
+ rtrs_wrn(con->path,
"Posting receive work request failed, sg list is empty\n");
return -EINVAL;
}
@@ -126,7 +126,7 @@ static int rtrs_post_send(struct ib_qp *qp, struct ib_send_wr *head,
int rtrs_iu_post_send(struct rtrs_con *con, struct rtrs_iu *iu, size_t size,
struct ib_send_wr *head)
{
- struct rtrs_sess *sess = con->sess;
+ struct rtrs_path *path = con->path;
struct ib_send_wr wr;
struct ib_sge list;
@@ -135,7 +135,7 @@ int rtrs_iu_post_send(struct rtrs_con *con, struct rtrs_iu *iu, size_t size,
list.addr = iu->dma_addr;
list.length = size;
- list.lkey = sess->dev->ib_pd->local_dma_lkey;
+ list.lkey = path->dev->ib_pd->local_dma_lkey;
wr = (struct ib_send_wr) {
.wr_cqe = &iu->cqe,
@@ -188,11 +188,11 @@ static int rtrs_post_rdma_write_imm_empty(struct rtrs_con *con,
struct ib_send_wr *head)
{
struct ib_rdma_wr wr;
- struct rtrs_sess *sess = con->sess;
+ struct rtrs_path *path = con->path;
enum ib_send_flags sflags;
atomic_dec_if_positive(&con->sq_wr_avail);
- sflags = (atomic_inc_return(&con->wr_cnt) % sess->signal_interval) ?
+ sflags = (atomic_inc_return(&con->wr_cnt) % path->signal_interval) ?
0 : IB_SEND_SIGNALED;
wr = (struct ib_rdma_wr) {
@@ -211,12 +211,12 @@ static void qp_event_handler(struct ib_event *ev, void *ctx)
switch (ev->event) {
case IB_EVENT_COMM_EST:
- rtrs_info(con->sess, "QP event %s (%d) received\n",
+ rtrs_info(con->path, "QP event %s (%d) received\n",
ib_event_msg(ev->event), ev->event);
rdma_notify(con->cm_id, IB_EVENT_COMM_EST);
break;
default:
- rtrs_info(con->sess, "Unhandled QP event %s (%d) received\n",
+ rtrs_info(con->path, "Unhandled QP event %s (%d) received\n",
ib_event_msg(ev->event), ev->event);
break;
}
@@ -224,7 +224,7 @@ static void qp_event_handler(struct ib_event *ev, void *ctx)
static bool is_pollqueue(struct rtrs_con *con)
{
- return con->cid >= con->sess->irq_con_num;
+ return con->cid >= con->path->irq_con_num;
}
static int create_cq(struct rtrs_con *con, int cq_vector, int nr_cqe,
@@ -240,7 +240,7 @@ static int create_cq(struct rtrs_con *con, int cq_vector, int nr_cqe,
cq = ib_cq_pool_get(cm_id->device, nr_cqe, cq_vector, poll_ctx);
if (IS_ERR(cq)) {
- rtrs_err(con->sess, "Creating completion queue failed, errno: %ld\n",
+ rtrs_err(con->path, "Creating completion queue failed, errno: %ld\n",
PTR_ERR(cq));
return PTR_ERR(cq);
}
@@ -271,7 +271,7 @@ static int create_qp(struct rtrs_con *con, struct ib_pd *pd,
ret = rdma_create_qp(cm_id, pd, &init_attr);
if (ret) {
- rtrs_err(con->sess, "Creating QP failed, err: %d\n", ret);
+ rtrs_err(con->path, "Creating QP failed, err: %d\n", ret);
return ret;
}
con->qp = cm_id->qp;
@@ -290,7 +290,7 @@ static void destroy_cq(struct rtrs_con *con)
con->cq = NULL;
}
-int rtrs_cq_qp_create(struct rtrs_sess *sess, struct rtrs_con *con,
+int rtrs_cq_qp_create(struct rtrs_path *path, struct rtrs_con *con,
u32 max_send_sge, int cq_vector, int nr_cqe,
u32 max_send_wr, u32 max_recv_wr,
enum ib_poll_context poll_ctx)
@@ -301,13 +301,13 @@ int rtrs_cq_qp_create(struct rtrs_sess *sess, struct rtrs_con *con,
if (err)
return err;
- err = create_qp(con, sess->dev->ib_pd, max_send_wr, max_recv_wr,
+ err = create_qp(con, path->dev->ib_pd, max_send_wr, max_recv_wr,
max_send_sge);
if (err) {
destroy_cq(con);
return err;
}
- con->sess = sess;
+ con->path = path;
return 0;
}
@@ -323,24 +323,24 @@ void rtrs_cq_qp_destroy(struct rtrs_con *con)
}
EXPORT_SYMBOL_GPL(rtrs_cq_qp_destroy);
-static void schedule_hb(struct rtrs_sess *sess)
+static void schedule_hb(struct rtrs_path *path)
{
- queue_delayed_work(sess->hb_wq, &sess->hb_dwork,
- msecs_to_jiffies(sess->hb_interval_ms));
+ queue_delayed_work(path->hb_wq, &path->hb_dwork,
+ msecs_to_jiffies(path->hb_interval_ms));
}
-void rtrs_send_hb_ack(struct rtrs_sess *sess)
+void rtrs_send_hb_ack(struct rtrs_path *path)
{
- struct rtrs_con *usr_con = sess->con[0];
+ struct rtrs_con *usr_con = path->con[0];
u32 imm;
int err;
imm = rtrs_to_imm(RTRS_HB_ACK_IMM, 0);
- err = rtrs_post_rdma_write_imm_empty(usr_con, sess->hb_cqe, imm,
+ err = rtrs_post_rdma_write_imm_empty(usr_con, path->hb_cqe, imm,
NULL);
if (err) {
- rtrs_err(sess, "send HB ACK failed, errno: %d\n", err);
- sess->hb_err_handler(usr_con);
+ rtrs_err(path, "send HB ACK failed, errno: %d\n", err);
+ path->hb_err_handler(usr_con);
return;
}
}
@@ -349,63 +349,63 @@ EXPORT_SYMBOL_GPL(rtrs_send_hb_ack);
static void hb_work(struct work_struct *work)
{
struct rtrs_con *usr_con;
- struct rtrs_sess *sess;
+ struct rtrs_path *path;
u32 imm;
int err;
- sess = container_of(to_delayed_work(work), typeof(*sess), hb_dwork);
- usr_con = sess->con[0];
+ path = container_of(to_delayed_work(work), typeof(*path), hb_dwork);
+ usr_con = path->con[0];
- if (sess->hb_missed_cnt > sess->hb_missed_max) {
- rtrs_err(sess, "HB missed max reached.\n");
- sess->hb_err_handler(usr_con);
+ if (path->hb_missed_cnt > path->hb_missed_max) {
+ rtrs_err(path, "HB missed max reached.\n");
+ path->hb_err_handler(usr_con);
return;
}
- if (sess->hb_missed_cnt++) {
+ if (path->hb_missed_cnt++) {
/* Reschedule work without sending hb */
- schedule_hb(sess);
+ schedule_hb(path);
return;
}
- sess->hb_last_sent = ktime_get();
+ path->hb_last_sent = ktime_get();
imm = rtrs_to_imm(RTRS_HB_MSG_IMM, 0);
- err = rtrs_post_rdma_write_imm_empty(usr_con, sess->hb_cqe, imm,
+ err = rtrs_post_rdma_write_imm_empty(usr_con, path->hb_cqe, imm,
NULL);
if (err) {
- rtrs_err(sess, "HB send failed, errno: %d\n", err);
- sess->hb_err_handler(usr_con);
+ rtrs_err(path, "HB send failed, errno: %d\n", err);
+ path->hb_err_handler(usr_con);
return;
}
- schedule_hb(sess);
+ schedule_hb(path);
}
-void rtrs_init_hb(struct rtrs_sess *sess, struct ib_cqe *cqe,
+void rtrs_init_hb(struct rtrs_path *path, struct ib_cqe *cqe,
unsigned int interval_ms, unsigned int missed_max,
void (*err_handler)(struct rtrs_con *con),
struct workqueue_struct *wq)
{
- sess->hb_cqe = cqe;
- sess->hb_interval_ms = interval_ms;
- sess->hb_err_handler = err_handler;
- sess->hb_wq = wq;
- sess->hb_missed_max = missed_max;
- sess->hb_missed_cnt = 0;
- INIT_DELAYED_WORK(&sess->hb_dwork, hb_work);
+ path->hb_cqe = cqe;
+ path->hb_interval_ms = interval_ms;
+ path->hb_err_handler = err_handler;
+ path->hb_wq = wq;
+ path->hb_missed_max = missed_max;
+ path->hb_missed_cnt = 0;
+ INIT_DELAYED_WORK(&path->hb_dwork, hb_work);
}
EXPORT_SYMBOL_GPL(rtrs_init_hb);
-void rtrs_start_hb(struct rtrs_sess *sess)
+void rtrs_start_hb(struct rtrs_path *path)
{
- schedule_hb(sess);
+ schedule_hb(path);
}
EXPORT_SYMBOL_GPL(rtrs_start_hb);
-void rtrs_stop_hb(struct rtrs_sess *sess)
+void rtrs_stop_hb(struct rtrs_path *path)
{
- cancel_delayed_work_sync(&sess->hb_dwork);
- sess->hb_missed_cnt = 0;
+ cancel_delayed_work_sync(&path->hb_dwork);
+ path->hb_missed_cnt = 0;
}
EXPORT_SYMBOL_GPL(rtrs_stop_hb);
--
2.25.1
^ permalink raw reply related [flat|nested] 13+ messages in thread
* [PATCHv2 for-next 2/5] RDMA/rtrs-srv: Rename rtrs_srv_sess to rtrs_srv_path
2022-01-03 13:33 [PATCHv2 for-next 0/5] RTRS renaming Jack Wang
2022-01-03 13:33 ` [PATCHv2 for-next 1/5] RDMA/rtrs: Rename rtrs_sess to rtrs_path Jack Wang
@ 2022-01-03 13:33 ` Jack Wang
2022-01-04 6:50 ` Guoqing Jiang
2022-01-03 13:33 ` [PATCHv2 for-next 3/5] RDMA/rtrs-clt: Rename rtrs_clt_sess to rtrs_clt_path Jack Wang
` (2 subsequent siblings)
4 siblings, 1 reply; 13+ messages in thread
From: Jack Wang @ 2022-01-03 13:33 UTC (permalink / raw)
To: linux-rdma
Cc: bvanassche, leon, jgg, haris.iqbal, jinpu.wang, Vaishali Thakkar
From: Vaishali Thakkar <vaishali.thakkar@ionos.com>
rtrs_srv_sess is used for paths and not sessions on
the server side. This creates confusion so let's
rename it to rtrs_srv_path. Also, rename related
variables and functions.
Coccinelle is used to do the transformations for
most of the occurrences and remaining ones were
handled manually.
Signed-off-by: Vaishali Thakkar <vaishali.thakkar@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
---
drivers/block/rnbd/rnbd-srv.c | 4 +-
drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c | 119 ++--
drivers/infiniband/ulp/rtrs/rtrs-srv.c | 606 ++++++++++---------
drivers/infiniband/ulp/rtrs/rtrs-srv.h | 10 +-
drivers/infiniband/ulp/rtrs/rtrs.h | 2 +-
5 files changed, 375 insertions(+), 366 deletions(-)
diff --git a/drivers/block/rnbd/rnbd-srv.c b/drivers/block/rnbd/rnbd-srv.c
index aafecfe97055..abff9039cbea 100644
--- a/drivers/block/rnbd/rnbd-srv.c
+++ b/drivers/block/rnbd/rnbd-srv.c
@@ -269,9 +269,9 @@ static int create_sess(struct rtrs_srv *rtrs)
char sessname[NAME_MAX];
int err;
- err = rtrs_srv_get_sess_name(rtrs, sessname, sizeof(sessname));
+ err = rtrs_srv_get_path_name(rtrs, sessname, sizeof(sessname));
if (err) {
- pr_err("rtrs_srv_get_sess_name(%s): %d\n", sessname, err);
+ pr_err("rtrs_srv_get_path_name(%s): %d\n", sessname, err);
return err;
}
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c b/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c
index e9fa67365b2b..628ef20ebf0c 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c
@@ -15,10 +15,10 @@
static void rtrs_srv_release(struct kobject *kobj)
{
- struct rtrs_srv_sess *sess;
+ struct rtrs_srv_path *srv_path;
- sess = container_of(kobj, struct rtrs_srv_sess, kobj);
- kfree(sess);
+ srv_path = container_of(kobj, struct rtrs_srv_path, kobj);
+ kfree(srv_path);
}
static struct kobj_type ktype = {
@@ -36,24 +36,25 @@ static ssize_t rtrs_srv_disconnect_store(struct kobject *kobj,
struct kobj_attribute *attr,
const char *buf, size_t count)
{
- struct rtrs_srv_sess *sess;
+ struct rtrs_srv_path *srv_path;
struct rtrs_path *s;
char str[MAXHOSTNAMELEN];
- sess = container_of(kobj, struct rtrs_srv_sess, kobj);
- s = &sess->s;
+ srv_path = container_of(kobj, struct rtrs_srv_path, kobj);
+ s = &srv_path->s;
if (!sysfs_streq(buf, "1")) {
rtrs_err(s, "%s: invalid value: '%s'\n",
attr->attr.name, buf);
return -EINVAL;
}
- sockaddr_to_str((struct sockaddr *)&sess->s.dst_addr, str, sizeof(str));
+ sockaddr_to_str((struct sockaddr *)&srv_path->s.dst_addr, str,
+ sizeof(str));
rtrs_info(s, "disconnect for path %s requested\n", str);
/* first remove sysfs itself to avoid deadlock */
- sysfs_remove_file_self(&sess->kobj, &attr->attr);
- close_sess(sess);
+ sysfs_remove_file_self(&srv_path->kobj, &attr->attr);
+ close_path(srv_path);
return count;
}
@@ -66,11 +67,11 @@ static ssize_t rtrs_srv_hca_port_show(struct kobject *kobj,
struct kobj_attribute *attr,
char *page)
{
- struct rtrs_srv_sess *sess;
+ struct rtrs_srv_path *srv_path;
struct rtrs_con *usr_con;
- sess = container_of(kobj, typeof(*sess), kobj);
- usr_con = sess->s.con[0];
+ srv_path = container_of(kobj, typeof(*srv_path), kobj);
+ usr_con = srv_path->s.con[0];
return sysfs_emit(page, "%u\n", usr_con->cm_id->port_num);
}
@@ -82,11 +83,11 @@ static ssize_t rtrs_srv_hca_name_show(struct kobject *kobj,
struct kobj_attribute *attr,
char *page)
{
- struct rtrs_srv_sess *sess;
+ struct rtrs_srv_path *srv_path;
- sess = container_of(kobj, struct rtrs_srv_sess, kobj);
+ srv_path = container_of(kobj, struct rtrs_srv_path, kobj);
- return sysfs_emit(page, "%s\n", sess->s.dev->ib_dev->name);
+ return sysfs_emit(page, "%s\n", srv_path->s.dev->ib_dev->name);
}
static struct kobj_attribute rtrs_srv_hca_name_attr =
@@ -96,11 +97,11 @@ static ssize_t rtrs_srv_src_addr_show(struct kobject *kobj,
struct kobj_attribute *attr,
char *page)
{
- struct rtrs_srv_sess *sess;
+ struct rtrs_srv_path *srv_path;
int cnt;
- sess = container_of(kobj, struct rtrs_srv_sess, kobj);
- cnt = sockaddr_to_str((struct sockaddr *)&sess->s.dst_addr,
+ srv_path = container_of(kobj, struct rtrs_srv_path, kobj);
+ cnt = sockaddr_to_str((struct sockaddr *)&srv_path->s.dst_addr,
page, PAGE_SIZE);
return cnt + sysfs_emit_at(page, cnt, "\n");
}
@@ -112,11 +113,11 @@ static ssize_t rtrs_srv_dst_addr_show(struct kobject *kobj,
struct kobj_attribute *attr,
char *page)
{
- struct rtrs_srv_sess *sess;
+ struct rtrs_srv_path *srv_path;
int len;
- sess = container_of(kobj, struct rtrs_srv_sess, kobj);
- len = sockaddr_to_str((struct sockaddr *)&sess->s.src_addr, page,
+ srv_path = container_of(kobj, struct rtrs_srv_path, kobj);
+ len = sockaddr_to_str((struct sockaddr *)&srv_path->s.src_addr, page,
PAGE_SIZE);
len += sysfs_emit_at(page, len, "\n");
return len;
@@ -125,7 +126,7 @@ static ssize_t rtrs_srv_dst_addr_show(struct kobject *kobj,
static struct kobj_attribute rtrs_srv_dst_addr_attr =
__ATTR(dst_addr, 0444, rtrs_srv_dst_addr_show, NULL);
-static struct attribute *rtrs_srv_sess_attrs[] = {
+static struct attribute *rtrs_srv_path_attrs[] = {
&rtrs_srv_hca_name_attr.attr,
&rtrs_srv_hca_port_attr.attr,
&rtrs_srv_src_addr_attr.attr,
@@ -134,8 +135,8 @@ static struct attribute *rtrs_srv_sess_attrs[] = {
NULL,
};
-static const struct attribute_group rtrs_srv_sess_attr_group = {
- .attrs = rtrs_srv_sess_attrs,
+static const struct attribute_group rtrs_srv_path_attr_group = {
+ .attrs = rtrs_srv_path_attrs,
};
STAT_ATTR(struct rtrs_srv_stats, rdma,
@@ -151,9 +152,9 @@ static const struct attribute_group rtrs_srv_stats_attr_group = {
.attrs = rtrs_srv_stats_attrs,
};
-static int rtrs_srv_create_once_sysfs_root_folders(struct rtrs_srv_sess *sess)
+static int rtrs_srv_create_once_sysfs_root_folders(struct rtrs_srv_path *srv_path)
{
- struct rtrs_srv *srv = sess->srv;
+ struct rtrs_srv *srv = srv_path->srv;
int err = 0;
mutex_lock(&srv->paths_mutex);
@@ -164,7 +165,7 @@ static int rtrs_srv_create_once_sysfs_root_folders(struct rtrs_srv_sess *sess)
goto unlock;
}
srv->dev.class = rtrs_dev_class;
- err = dev_set_name(&srv->dev, "%s", sess->s.sessname);
+ err = dev_set_name(&srv->dev, "%s", srv_path->s.sessname);
if (err)
goto unlock;
@@ -196,9 +197,9 @@ static int rtrs_srv_create_once_sysfs_root_folders(struct rtrs_srv_sess *sess)
}
static void
-rtrs_srv_destroy_once_sysfs_root_folders(struct rtrs_srv_sess *sess)
+rtrs_srv_destroy_once_sysfs_root_folders(struct rtrs_srv_path *srv_path)
{
- struct rtrs_srv *srv = sess->srv;
+ struct rtrs_srv *srv = srv_path->srv;
mutex_lock(&srv->paths_mutex);
if (!--srv->dev_ref) {
@@ -213,7 +214,7 @@ rtrs_srv_destroy_once_sysfs_root_folders(struct rtrs_srv_sess *sess)
}
}
-static void rtrs_srv_sess_stats_release(struct kobject *kobj)
+static void rtrs_srv_path_stats_release(struct kobject *kobj)
{
struct rtrs_srv_stats *stats;
@@ -224,22 +225,22 @@ static void rtrs_srv_sess_stats_release(struct kobject *kobj)
static struct kobj_type ktype_stats = {
.sysfs_ops = &kobj_sysfs_ops,
- .release = rtrs_srv_sess_stats_release,
+ .release = rtrs_srv_path_stats_release,
};
-static int rtrs_srv_create_stats_files(struct rtrs_srv_sess *sess)
+static int rtrs_srv_create_stats_files(struct rtrs_srv_path *srv_path)
{
int err;
- struct rtrs_path *s = &sess->s;
+ struct rtrs_path *s = &srv_path->s;
- err = kobject_init_and_add(&sess->stats->kobj_stats, &ktype_stats,
- &sess->kobj, "stats");
+ err = kobject_init_and_add(&srv_path->stats->kobj_stats, &ktype_stats,
+ &srv_path->kobj, "stats");
if (err) {
rtrs_err(s, "kobject_init_and_add(): %d\n", err);
- kobject_put(&sess->stats->kobj_stats);
+ kobject_put(&srv_path->stats->kobj_stats);
return err;
}
- err = sysfs_create_group(&sess->stats->kobj_stats,
+ err = sysfs_create_group(&srv_path->stats->kobj_stats,
&rtrs_srv_stats_attr_group);
if (err) {
rtrs_err(s, "sysfs_create_group(): %d\n", err);
@@ -249,64 +250,64 @@ static int rtrs_srv_create_stats_files(struct rtrs_srv_sess *sess)
return 0;
err:
- kobject_del(&sess->stats->kobj_stats);
- kobject_put(&sess->stats->kobj_stats);
+ kobject_del(&srv_path->stats->kobj_stats);
+ kobject_put(&srv_path->stats->kobj_stats);
return err;
}
-int rtrs_srv_create_sess_files(struct rtrs_srv_sess *sess)
+int rtrs_srv_create_path_files(struct rtrs_srv_path *srv_path)
{
- struct rtrs_srv *srv = sess->srv;
- struct rtrs_path *s = &sess->s;
+ struct rtrs_srv *srv = srv_path->srv;
+ struct rtrs_path *s = &srv_path->s;
char str[NAME_MAX];
int err;
struct rtrs_addr path = {
- .src = &sess->s.dst_addr,
- .dst = &sess->s.src_addr,
+ .src = &srv_path->s.dst_addr,
+ .dst = &srv_path->s.src_addr,
};
rtrs_addr_to_str(&path, str, sizeof(str));
- err = rtrs_srv_create_once_sysfs_root_folders(sess);
+ err = rtrs_srv_create_once_sysfs_root_folders(srv_path);
if (err)
return err;
- err = kobject_init_and_add(&sess->kobj, &ktype, srv->kobj_paths,
+ err = kobject_init_and_add(&srv_path->kobj, &ktype, srv->kobj_paths,
"%s", str);
if (err) {
rtrs_err(s, "kobject_init_and_add(): %d\n", err);
goto destroy_root;
}
- err = sysfs_create_group(&sess->kobj, &rtrs_srv_sess_attr_group);
+ err = sysfs_create_group(&srv_path->kobj, &rtrs_srv_path_attr_group);
if (err) {
rtrs_err(s, "sysfs_create_group(): %d\n", err);
goto put_kobj;
}
- err = rtrs_srv_create_stats_files(sess);
+ err = rtrs_srv_create_stats_files(srv_path);
if (err)
goto remove_group;
return 0;
remove_group:
- sysfs_remove_group(&sess->kobj, &rtrs_srv_sess_attr_group);
+ sysfs_remove_group(&srv_path->kobj, &rtrs_srv_path_attr_group);
put_kobj:
- kobject_del(&sess->kobj);
+ kobject_del(&srv_path->kobj);
destroy_root:
- kobject_put(&sess->kobj);
- rtrs_srv_destroy_once_sysfs_root_folders(sess);
+ kobject_put(&srv_path->kobj);
+ rtrs_srv_destroy_once_sysfs_root_folders(srv_path);
return err;
}
-void rtrs_srv_destroy_sess_files(struct rtrs_srv_sess *sess)
+void rtrs_srv_destroy_path_files(struct rtrs_srv_path *srv_path)
{
- if (sess->kobj.state_in_sysfs) {
- kobject_del(&sess->stats->kobj_stats);
- kobject_put(&sess->stats->kobj_stats);
- sysfs_remove_group(&sess->kobj, &rtrs_srv_sess_attr_group);
- kobject_put(&sess->kobj);
+ if (srv_path->kobj.state_in_sysfs) {
+ kobject_del(&srv_path->stats->kobj_stats);
+ kobject_put(&srv_path->stats->kobj_stats);
+ sysfs_remove_group(&srv_path->kobj, &rtrs_srv_path_attr_group);
+ kobject_put(&srv_path->kobj);
- rtrs_srv_destroy_once_sysfs_root_folders(sess);
+ rtrs_srv_destroy_once_sysfs_root_folders(srv_path);
}
}
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-srv.c b/drivers/infiniband/ulp/rtrs/rtrs-srv.c
index de4f214233b6..643c9ccb4b44 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-srv.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-srv.c
@@ -62,19 +62,19 @@ static inline struct rtrs_srv_con *to_srv_con(struct rtrs_con *c)
return container_of(c, struct rtrs_srv_con, c);
}
-static inline struct rtrs_srv_sess *to_srv_sess(struct rtrs_path *s)
+static inline struct rtrs_srv_path *to_srv_path(struct rtrs_path *s)
{
- return container_of(s, struct rtrs_srv_sess, s);
+ return container_of(s, struct rtrs_srv_path, s);
}
-static bool rtrs_srv_change_state(struct rtrs_srv_sess *sess,
+static bool rtrs_srv_change_state(struct rtrs_srv_path *srv_path,
enum rtrs_srv_state new_state)
{
enum rtrs_srv_state old_state;
bool changed = false;
- spin_lock_irq(&sess->state_lock);
- old_state = sess->state;
+ spin_lock_irq(&srv_path->state_lock);
+ old_state = srv_path->state;
switch (new_state) {
case RTRS_SRV_CONNECTED:
if (old_state == RTRS_SRV_CONNECTING)
@@ -93,8 +93,8 @@ static bool rtrs_srv_change_state(struct rtrs_srv_sess *sess,
break;
}
if (changed)
- sess->state = new_state;
- spin_unlock_irq(&sess->state_lock);
+ srv_path->state = new_state;
+ spin_unlock_irq(&srv_path->state_lock);
return changed;
}
@@ -106,16 +106,16 @@ static void free_id(struct rtrs_srv_op *id)
kfree(id);
}
-static void rtrs_srv_free_ops_ids(struct rtrs_srv_sess *sess)
+static void rtrs_srv_free_ops_ids(struct rtrs_srv_path *srv_path)
{
- struct rtrs_srv *srv = sess->srv;
+ struct rtrs_srv *srv = srv_path->srv;
int i;
- if (sess->ops_ids) {
+ if (srv_path->ops_ids) {
for (i = 0; i < srv->queue_depth; i++)
- free_id(sess->ops_ids[i]);
- kfree(sess->ops_ids);
- sess->ops_ids = NULL;
+ free_id(srv_path->ops_ids[i]);
+ kfree(srv_path->ops_ids);
+ srv_path->ops_ids = NULL;
}
}
@@ -127,21 +127,24 @@ static struct ib_cqe io_comp_cqe = {
static inline void rtrs_srv_inflight_ref_release(struct percpu_ref *ref)
{
- struct rtrs_srv_sess *sess = container_of(ref, struct rtrs_srv_sess, ids_inflight_ref);
+ struct rtrs_srv_path *srv_path = container_of(ref,
+ struct rtrs_srv_path,
+ ids_inflight_ref);
- percpu_ref_exit(&sess->ids_inflight_ref);
- complete(&sess->complete_done);
+ percpu_ref_exit(&srv_path->ids_inflight_ref);
+ complete(&srv_path->complete_done);
}
-static int rtrs_srv_alloc_ops_ids(struct rtrs_srv_sess *sess)
+static int rtrs_srv_alloc_ops_ids(struct rtrs_srv_path *srv_path)
{
- struct rtrs_srv *srv = sess->srv;
+ struct rtrs_srv *srv = srv_path->srv;
struct rtrs_srv_op *id;
int i, ret;
- sess->ops_ids = kcalloc(srv->queue_depth, sizeof(*sess->ops_ids),
- GFP_KERNEL);
- if (!sess->ops_ids)
+ srv_path->ops_ids = kcalloc(srv->queue_depth,
+ sizeof(*srv_path->ops_ids),
+ GFP_KERNEL);
+ if (!srv_path->ops_ids)
goto err;
for (i = 0; i < srv->queue_depth; ++i) {
@@ -149,44 +152,44 @@ static int rtrs_srv_alloc_ops_ids(struct rtrs_srv_sess *sess)
if (!id)
goto err;
- sess->ops_ids[i] = id;
+ srv_path->ops_ids[i] = id;
}
- ret = percpu_ref_init(&sess->ids_inflight_ref,
+ ret = percpu_ref_init(&srv_path->ids_inflight_ref,
rtrs_srv_inflight_ref_release, 0, GFP_KERNEL);
if (ret) {
pr_err("Percpu reference init failed\n");
goto err;
}
- init_completion(&sess->complete_done);
+ init_completion(&srv_path->complete_done);
return 0;
err:
- rtrs_srv_free_ops_ids(sess);
+ rtrs_srv_free_ops_ids(srv_path);
return -ENOMEM;
}
-static inline void rtrs_srv_get_ops_ids(struct rtrs_srv_sess *sess)
+static inline void rtrs_srv_get_ops_ids(struct rtrs_srv_path *srv_path)
{
- percpu_ref_get(&sess->ids_inflight_ref);
+ percpu_ref_get(&srv_path->ids_inflight_ref);
}
-static inline void rtrs_srv_put_ops_ids(struct rtrs_srv_sess *sess)
+static inline void rtrs_srv_put_ops_ids(struct rtrs_srv_path *srv_path)
{
- percpu_ref_put(&sess->ids_inflight_ref);
+ percpu_ref_put(&srv_path->ids_inflight_ref);
}
static void rtrs_srv_reg_mr_done(struct ib_cq *cq, struct ib_wc *wc)
{
struct rtrs_srv_con *con = to_srv_con(wc->qp->qp_context);
struct rtrs_path *s = con->c.path;
- struct rtrs_srv_sess *sess = to_srv_sess(s);
+ struct rtrs_srv_path *srv_path = to_srv_path(s);
if (wc->status != IB_WC_SUCCESS) {
rtrs_err(s, "REG MR failed: %s\n",
ib_wc_status_msg(wc->status));
- close_sess(sess);
+ close_path(srv_path);
return;
}
}
@@ -198,8 +201,8 @@ static struct ib_cqe local_reg_cqe = {
static int rdma_write_sg(struct rtrs_srv_op *id)
{
struct rtrs_path *s = id->con->c.path;
- struct rtrs_srv_sess *sess = to_srv_sess(s);
- dma_addr_t dma_addr = sess->dma_addr[id->msg_id];
+ struct rtrs_srv_path *srv_path = to_srv_path(s);
+ dma_addr_t dma_addr = srv_path->dma_addr[id->msg_id];
struct rtrs_srv_mr *srv_mr;
struct ib_send_wr inv_wr;
struct ib_rdma_wr imm_wr;
@@ -233,7 +236,7 @@ static int rdma_write_sg(struct rtrs_srv_op *id)
return -EINVAL;
}
- plist->lkey = sess->s.dev->ib_pd->local_dma_lkey;
+ plist->lkey = srv_path->s.dev->ib_pd->local_dma_lkey;
offset += plist->length;
wr->wr.sg_list = plist;
@@ -284,7 +287,7 @@ static int rdma_write_sg(struct rtrs_srv_op *id)
if (always_invalidate) {
struct rtrs_msg_rkey_rsp *msg;
- srv_mr = &sess->mrs[id->msg_id];
+ srv_mr = &srv_path->mrs[id->msg_id];
rwr.wr.opcode = IB_WR_REG_MR;
rwr.wr.wr_cqe = &local_reg_cqe;
rwr.wr.num_sge = 0;
@@ -300,11 +303,11 @@ static int rdma_write_sg(struct rtrs_srv_op *id)
list.addr = srv_mr->iu->dma_addr;
list.length = sizeof(*msg);
- list.lkey = sess->s.dev->ib_pd->local_dma_lkey;
+ list.lkey = srv_path->s.dev->ib_pd->local_dma_lkey;
imm_wr.wr.sg_list = &list;
imm_wr.wr.num_sge = 1;
imm_wr.wr.opcode = IB_WR_SEND_WITH_IMM;
- ib_dma_sync_single_for_device(sess->s.dev->ib_dev,
+ ib_dma_sync_single_for_device(srv_path->s.dev->ib_dev,
srv_mr->iu->dma_addr,
srv_mr->iu->size, DMA_TO_DEVICE);
} else {
@@ -317,7 +320,7 @@ static int rdma_write_sg(struct rtrs_srv_op *id)
0, need_inval));
imm_wr.wr.wr_cqe = &io_comp_cqe;
- ib_dma_sync_single_for_device(sess->s.dev->ib_dev, dma_addr,
+ ib_dma_sync_single_for_device(srv_path->s.dev->ib_dev, dma_addr,
offset, DMA_BIDIRECTIONAL);
err = ib_post_send(id->con->c.qp, &id->tx_wr.wr, NULL);
@@ -342,7 +345,7 @@ static int send_io_resp_imm(struct rtrs_srv_con *con, struct rtrs_srv_op *id,
int errno)
{
struct rtrs_path *s = con->c.path;
- struct rtrs_srv_sess *sess = to_srv_sess(s);
+ struct rtrs_srv_path *srv_path = to_srv_path(s);
struct ib_send_wr inv_wr, *wr = NULL;
struct ib_rdma_wr imm_wr;
struct ib_reg_wr rwr;
@@ -402,7 +405,7 @@ static int send_io_resp_imm(struct rtrs_srv_con *con, struct rtrs_srv_op *id,
struct ib_sge list;
struct rtrs_msg_rkey_rsp *msg;
- srv_mr = &sess->mrs[id->msg_id];
+ srv_mr = &srv_path->mrs[id->msg_id];
rwr.wr.next = &imm_wr.wr;
rwr.wr.opcode = IB_WR_REG_MR;
rwr.wr.wr_cqe = &local_reg_cqe;
@@ -419,11 +422,11 @@ static int send_io_resp_imm(struct rtrs_srv_con *con, struct rtrs_srv_op *id,
list.addr = srv_mr->iu->dma_addr;
list.length = sizeof(*msg);
- list.lkey = sess->s.dev->ib_pd->local_dma_lkey;
+ list.lkey = srv_path->s.dev->ib_pd->local_dma_lkey;
imm_wr.wr.sg_list = &list;
imm_wr.wr.num_sge = 1;
imm_wr.wr.opcode = IB_WR_SEND_WITH_IMM;
- ib_dma_sync_single_for_device(sess->s.dev->ib_dev,
+ ib_dma_sync_single_for_device(srv_path->s.dev->ib_dev,
srv_mr->iu->dma_addr,
srv_mr->iu->size, DMA_TO_DEVICE);
} else {
@@ -444,11 +447,11 @@ static int send_io_resp_imm(struct rtrs_srv_con *con, struct rtrs_srv_op *id,
return err;
}
-void close_sess(struct rtrs_srv_sess *sess)
+void close_path(struct rtrs_srv_path *srv_path)
{
- if (rtrs_srv_change_state(sess, RTRS_SRV_CLOSING))
- queue_work(rtrs_wq, &sess->close_work);
- WARN_ON(sess->state != RTRS_SRV_CLOSING);
+ if (rtrs_srv_change_state(srv_path, RTRS_SRV_CLOSING))
+ queue_work(rtrs_wq, &srv_path->close_work);
+ WARN_ON(srv_path->state != RTRS_SRV_CLOSING);
}
static inline const char *rtrs_srv_state_str(enum rtrs_srv_state state)
@@ -480,7 +483,7 @@ static inline const char *rtrs_srv_state_str(enum rtrs_srv_state state)
*/
bool rtrs_srv_resp_rdma(struct rtrs_srv_op *id, int status)
{
- struct rtrs_srv_sess *sess;
+ struct rtrs_srv_path *srv_path;
struct rtrs_srv_con *con;
struct rtrs_path *s;
int err;
@@ -490,25 +493,25 @@ bool rtrs_srv_resp_rdma(struct rtrs_srv_op *id, int status)
con = id->con;
s = con->c.path;
- sess = to_srv_sess(s);
+ srv_path = to_srv_path(s);
id->status = status;
- if (sess->state != RTRS_SRV_CONNECTED) {
+ if (srv_path->state != RTRS_SRV_CONNECTED) {
rtrs_err_rl(s,
"Sending I/O response failed, session %s is disconnected, sess state %s\n",
- kobject_name(&sess->kobj),
- rtrs_srv_state_str(sess->state));
+ kobject_name(&srv_path->kobj),
+ rtrs_srv_state_str(srv_path->state));
goto out;
}
if (always_invalidate) {
- struct rtrs_srv_mr *mr = &sess->mrs[id->msg_id];
+ struct rtrs_srv_mr *mr = &srv_path->mrs[id->msg_id];
ib_update_fast_reg_key(mr->mr, ib_inc_rkey(mr->mr->rkey));
}
if (atomic_sub_return(1, &con->c.sq_wr_avail) < 0) {
rtrs_err(s, "IB send queue full: sess=%s cid=%d\n",
- kobject_name(&sess->kobj),
+ kobject_name(&srv_path->kobj),
con->c.cid);
atomic_add(1, &con->c.sq_wr_avail);
spin_lock(&con->rsp_wr_wait_lock);
@@ -524,11 +527,11 @@ bool rtrs_srv_resp_rdma(struct rtrs_srv_op *id, int status)
if (err) {
rtrs_err_rl(s, "IO response failed: %d: sess=%s\n", err,
- kobject_name(&sess->kobj));
- close_sess(sess);
+ kobject_name(&srv_path->kobj));
+ close_path(srv_path);
}
out:
- rtrs_srv_put_ops_ids(sess);
+ rtrs_srv_put_ops_ids(srv_path);
return true;
}
EXPORT_SYMBOL(rtrs_srv_resp_rdma);
@@ -544,27 +547,27 @@ void rtrs_srv_set_sess_priv(struct rtrs_srv *srv, void *priv)
}
EXPORT_SYMBOL(rtrs_srv_set_sess_priv);
-static void unmap_cont_bufs(struct rtrs_srv_sess *sess)
+static void unmap_cont_bufs(struct rtrs_srv_path *srv_path)
{
int i;
- for (i = 0; i < sess->mrs_num; i++) {
+ for (i = 0; i < srv_path->mrs_num; i++) {
struct rtrs_srv_mr *srv_mr;
- srv_mr = &sess->mrs[i];
- rtrs_iu_free(srv_mr->iu, sess->s.dev->ib_dev, 1);
+ srv_mr = &srv_path->mrs[i];
+ rtrs_iu_free(srv_mr->iu, srv_path->s.dev->ib_dev, 1);
ib_dereg_mr(srv_mr->mr);
- ib_dma_unmap_sg(sess->s.dev->ib_dev, srv_mr->sgt.sgl,
+ ib_dma_unmap_sg(srv_path->s.dev->ib_dev, srv_mr->sgt.sgl,
srv_mr->sgt.nents, DMA_BIDIRECTIONAL);
sg_free_table(&srv_mr->sgt);
}
- kfree(sess->mrs);
+ kfree(srv_path->mrs);
}
-static int map_cont_bufs(struct rtrs_srv_sess *sess)
+static int map_cont_bufs(struct rtrs_srv_path *srv_path)
{
- struct rtrs_srv *srv = sess->srv;
- struct rtrs_path *ss = &sess->s;
+ struct rtrs_srv *srv = srv_path->srv;
+ struct rtrs_path *ss = &srv_path->s;
int i, mri, err, mrs_num;
unsigned int chunk_bits;
int chunks_per_mr = 1;
@@ -581,19 +584,19 @@ static int map_cont_bufs(struct rtrs_srv_sess *sess)
mrs_num = srv->queue_depth;
} else {
chunks_per_mr =
- sess->s.dev->ib_dev->attrs.max_fast_reg_page_list_len;
+ srv_path->s.dev->ib_dev->attrs.max_fast_reg_page_list_len;
mrs_num = DIV_ROUND_UP(srv->queue_depth, chunks_per_mr);
chunks_per_mr = DIV_ROUND_UP(srv->queue_depth, mrs_num);
}
- sess->mrs = kcalloc(mrs_num, sizeof(*sess->mrs), GFP_KERNEL);
- if (!sess->mrs)
+ srv_path->mrs = kcalloc(mrs_num, sizeof(*srv_path->mrs), GFP_KERNEL);
+ if (!srv_path->mrs)
return -ENOMEM;
- sess->mrs_num = mrs_num;
+ srv_path->mrs_num = mrs_num;
for (mri = 0; mri < mrs_num; mri++) {
- struct rtrs_srv_mr *srv_mr = &sess->mrs[mri];
+ struct rtrs_srv_mr *srv_mr = &srv_path->mrs[mri];
struct sg_table *sgt = &srv_mr->sgt;
struct scatterlist *s;
struct ib_mr *mr;
@@ -612,13 +615,13 @@ static int map_cont_bufs(struct rtrs_srv_sess *sess)
sg_set_page(s, srv->chunks[chunks + i],
max_chunk_size, 0);
- nr = ib_dma_map_sg(sess->s.dev->ib_dev, sgt->sgl,
+ nr = ib_dma_map_sg(srv_path->s.dev->ib_dev, sgt->sgl,
sgt->nents, DMA_BIDIRECTIONAL);
if (nr < sgt->nents) {
err = nr < 0 ? nr : -EINVAL;
goto free_sg;
}
- mr = ib_alloc_mr(sess->s.dev->ib_pd, IB_MR_TYPE_MEM_REG,
+ mr = ib_alloc_mr(srv_path->s.dev->ib_pd, IB_MR_TYPE_MEM_REG,
sgt->nents);
if (IS_ERR(mr)) {
err = PTR_ERR(mr);
@@ -634,7 +637,7 @@ static int map_cont_bufs(struct rtrs_srv_sess *sess)
if (always_invalidate) {
srv_mr->iu = rtrs_iu_alloc(1,
sizeof(struct rtrs_msg_rkey_rsp),
- GFP_KERNEL, sess->s.dev->ib_dev,
+ GFP_KERNEL, srv_path->s.dev->ib_dev,
DMA_TO_DEVICE, rtrs_srv_rdma_done);
if (!srv_mr->iu) {
err = -ENOMEM;
@@ -644,7 +647,7 @@ static int map_cont_bufs(struct rtrs_srv_sess *sess)
}
/* Eventually dma addr for each chunk can be cached */
for_each_sg(sgt->sgl, s, sgt->orig_nents, i)
- sess->dma_addr[chunks + i] = sg_dma_address(s);
+ srv_path->dma_addr[chunks + i] = sg_dma_address(s);
ib_update_fast_reg_key(mr, ib_inc_rkey(mr->rkey));
srv_mr->mr = mr;
@@ -652,75 +655,75 @@ static int map_cont_bufs(struct rtrs_srv_sess *sess)
continue;
err:
while (mri--) {
- srv_mr = &sess->mrs[mri];
+ srv_mr = &srv_path->mrs[mri];
sgt = &srv_mr->sgt;
mr = srv_mr->mr;
- rtrs_iu_free(srv_mr->iu, sess->s.dev->ib_dev, 1);
+ rtrs_iu_free(srv_mr->iu, srv_path->s.dev->ib_dev, 1);
dereg_mr:
ib_dereg_mr(mr);
unmap_sg:
- ib_dma_unmap_sg(sess->s.dev->ib_dev, sgt->sgl,
+ ib_dma_unmap_sg(srv_path->s.dev->ib_dev, sgt->sgl,
sgt->nents, DMA_BIDIRECTIONAL);
free_sg:
sg_free_table(sgt);
}
- kfree(sess->mrs);
+ kfree(srv_path->mrs);
return err;
}
chunk_bits = ilog2(srv->queue_depth - 1) + 1;
- sess->mem_bits = (MAX_IMM_PAYL_BITS - chunk_bits);
+ srv_path->mem_bits = (MAX_IMM_PAYL_BITS - chunk_bits);
return 0;
}
static void rtrs_srv_hb_err_handler(struct rtrs_con *c)
{
- close_sess(to_srv_sess(c->path));
+ close_path(to_srv_path(c->path));
}
-static void rtrs_srv_init_hb(struct rtrs_srv_sess *sess)
+static void rtrs_srv_init_hb(struct rtrs_srv_path *srv_path)
{
- rtrs_init_hb(&sess->s, &io_comp_cqe,
+ rtrs_init_hb(&srv_path->s, &io_comp_cqe,
RTRS_HB_INTERVAL_MS,
RTRS_HB_MISSED_MAX,
rtrs_srv_hb_err_handler,
rtrs_wq);
}
-static void rtrs_srv_start_hb(struct rtrs_srv_sess *sess)
+static void rtrs_srv_start_hb(struct rtrs_srv_path *srv_path)
{
- rtrs_start_hb(&sess->s);
+ rtrs_start_hb(&srv_path->s);
}
-static void rtrs_srv_stop_hb(struct rtrs_srv_sess *sess)
+static void rtrs_srv_stop_hb(struct rtrs_srv_path *srv_path)
{
- rtrs_stop_hb(&sess->s);
+ rtrs_stop_hb(&srv_path->s);
}
static void rtrs_srv_info_rsp_done(struct ib_cq *cq, struct ib_wc *wc)
{
struct rtrs_srv_con *con = to_srv_con(wc->qp->qp_context);
struct rtrs_path *s = con->c.path;
- struct rtrs_srv_sess *sess = to_srv_sess(s);
+ struct rtrs_srv_path *srv_path = to_srv_path(s);
struct rtrs_iu *iu;
iu = container_of(wc->wr_cqe, struct rtrs_iu, cqe);
- rtrs_iu_free(iu, sess->s.dev->ib_dev, 1);
+ rtrs_iu_free(iu, srv_path->s.dev->ib_dev, 1);
if (wc->status != IB_WC_SUCCESS) {
rtrs_err(s, "Sess info response send failed: %s\n",
ib_wc_status_msg(wc->status));
- close_sess(sess);
+ close_path(srv_path);
return;
}
WARN_ON(wc->opcode != IB_WC_SEND);
}
-static void rtrs_srv_sess_up(struct rtrs_srv_sess *sess)
+static void rtrs_srv_path_up(struct rtrs_srv_path *srv_path)
{
- struct rtrs_srv *srv = sess->srv;
+ struct rtrs_srv *srv = srv_path->srv;
struct rtrs_srv_ctx *ctx = srv->ctx;
int up;
@@ -731,18 +734,18 @@ static void rtrs_srv_sess_up(struct rtrs_srv_sess *sess)
mutex_unlock(&srv->paths_ev_mutex);
/* Mark session as established */
- sess->established = true;
+ srv_path->established = true;
}
-static void rtrs_srv_sess_down(struct rtrs_srv_sess *sess)
+static void rtrs_srv_path_down(struct rtrs_srv_path *srv_path)
{
- struct rtrs_srv *srv = sess->srv;
+ struct rtrs_srv *srv = srv_path->srv;
struct rtrs_srv_ctx *ctx = srv->ctx;
- if (!sess->established)
+ if (!srv_path->established)
return;
- sess->established = false;
+ srv_path->established = false;
mutex_lock(&srv->paths_ev_mutex);
WARN_ON(!srv->paths_up);
if (--srv->paths_up == 0)
@@ -754,7 +757,7 @@ static bool exist_sessname(struct rtrs_srv_ctx *ctx,
const char *sessname, const uuid_t *path_uuid)
{
struct rtrs_srv *srv;
- struct rtrs_srv_sess *sess;
+ struct rtrs_srv_path *srv_path;
bool found = false;
mutex_lock(&ctx->srv_mutex);
@@ -767,9 +770,9 @@ static bool exist_sessname(struct rtrs_srv_ctx *ctx,
continue;
}
- list_for_each_entry(sess, &srv->paths_list, s.entry) {
- if (strlen(sess->s.sessname) == strlen(sessname) &&
- !strcmp(sess->s.sessname, sessname)) {
+ list_for_each_entry(srv_path, &srv->paths_list, s.entry) {
+ if (strlen(srv_path->s.sessname) == strlen(sessname) &&
+ !strcmp(srv_path->s.sessname, sessname)) {
found = true;
break;
}
@@ -782,14 +785,14 @@ static bool exist_sessname(struct rtrs_srv_ctx *ctx,
return found;
}
-static int post_recv_sess(struct rtrs_srv_sess *sess);
+static int post_recv_sess(struct rtrs_srv_path *srv_path);
static int rtrs_rdma_do_reject(struct rdma_cm_id *cm_id, int errno);
static int process_info_req(struct rtrs_srv_con *con,
struct rtrs_msg_info_req *msg)
{
struct rtrs_path *s = con->c.path;
- struct rtrs_srv_sess *sess = to_srv_sess(s);
+ struct rtrs_srv_path *srv_path = to_srv_path(s);
struct ib_send_wr *reg_wr = NULL;
struct rtrs_msg_info_rsp *rsp;
struct rtrs_iu *tx_iu;
@@ -797,7 +800,7 @@ static int process_info_req(struct rtrs_srv_con *con,
int mri, err;
size_t tx_sz;
- err = post_recv_sess(sess);
+ err = post_recv_sess(srv_path);
if (err) {
rtrs_err(s, "post_recv_sess(), err: %d\n", err);
return err;
@@ -808,20 +811,21 @@ static int process_info_req(struct rtrs_srv_con *con,
return -EINVAL;
}
- if (exist_sessname(sess->srv->ctx,
- msg->sessname, &sess->srv->paths_uuid)) {
+ if (exist_sessname(srv_path->srv->ctx,
+ msg->sessname, &srv_path->srv->paths_uuid)) {
rtrs_err(s, "sessname is duplicated: %s\n", msg->sessname);
return -EPERM;
}
- strscpy(sess->s.sessname, msg->sessname, sizeof(sess->s.sessname));
+ strscpy(srv_path->s.sessname, msg->sessname,
+ sizeof(srv_path->s.sessname));
- rwr = kcalloc(sess->mrs_num, sizeof(*rwr), GFP_KERNEL);
+ rwr = kcalloc(srv_path->mrs_num, sizeof(*rwr), GFP_KERNEL);
if (!rwr)
return -ENOMEM;
tx_sz = sizeof(*rsp);
- tx_sz += sizeof(rsp->desc[0]) * sess->mrs_num;
- tx_iu = rtrs_iu_alloc(1, tx_sz, GFP_KERNEL, sess->s.dev->ib_dev,
+ tx_sz += sizeof(rsp->desc[0]) * srv_path->mrs_num;
+ tx_iu = rtrs_iu_alloc(1, tx_sz, GFP_KERNEL, srv_path->s.dev->ib_dev,
DMA_TO_DEVICE, rtrs_srv_info_rsp_done);
if (!tx_iu) {
err = -ENOMEM;
@@ -830,10 +834,10 @@ static int process_info_req(struct rtrs_srv_con *con,
rsp = tx_iu->buf;
rsp->type = cpu_to_le16(RTRS_MSG_INFO_RSP);
- rsp->sg_cnt = cpu_to_le16(sess->mrs_num);
+ rsp->sg_cnt = cpu_to_le16(srv_path->mrs_num);
- for (mri = 0; mri < sess->mrs_num; mri++) {
- struct ib_mr *mr = sess->mrs[mri].mr;
+ for (mri = 0; mri < srv_path->mrs_num; mri++) {
+ struct ib_mr *mr = srv_path->mrs[mri].mr;
rsp->desc[mri].addr = cpu_to_le64(mr->iova);
rsp->desc[mri].key = cpu_to_le32(mr->rkey);
@@ -854,13 +858,13 @@ static int process_info_req(struct rtrs_srv_con *con,
reg_wr = &rwr[mri].wr;
}
- err = rtrs_srv_create_sess_files(sess);
+ err = rtrs_srv_create_path_files(srv_path);
if (err)
goto iu_free;
- kobject_get(&sess->kobj);
- get_device(&sess->srv->dev);
- rtrs_srv_change_state(sess, RTRS_SRV_CONNECTED);
- rtrs_srv_start_hb(sess);
+ kobject_get(&srv_path->kobj);
+ get_device(&srv_path->srv->dev);
+ rtrs_srv_change_state(srv_path, RTRS_SRV_CONNECTED);
+ rtrs_srv_start_hb(srv_path);
/*
* We do not account number of established connections at the current
@@ -868,9 +872,10 @@ static int process_info_req(struct rtrs_srv_con *con,
* all connections are successfully established. Thus, simply notify
* listener with a proper event if we are the first path.
*/
- rtrs_srv_sess_up(sess);
+ rtrs_srv_path_up(srv_path);
- ib_dma_sync_single_for_device(sess->s.dev->ib_dev, tx_iu->dma_addr,
+ ib_dma_sync_single_for_device(srv_path->s.dev->ib_dev,
+ tx_iu->dma_addr,
tx_iu->size, DMA_TO_DEVICE);
/* Send info response */
@@ -878,7 +883,7 @@ static int process_info_req(struct rtrs_srv_con *con,
if (err) {
rtrs_err(s, "rtrs_iu_post_send(), err: %d\n", err);
iu_free:
- rtrs_iu_free(tx_iu, sess->s.dev->ib_dev, 1);
+ rtrs_iu_free(tx_iu, srv_path->s.dev->ib_dev, 1);
}
rwr_free:
kfree(rwr);
@@ -890,7 +895,7 @@ static void rtrs_srv_info_req_done(struct ib_cq *cq, struct ib_wc *wc)
{
struct rtrs_srv_con *con = to_srv_con(wc->qp->qp_context);
struct rtrs_path *s = con->c.path;
- struct rtrs_srv_sess *sess = to_srv_sess(s);
+ struct rtrs_srv_path *srv_path = to_srv_path(s);
struct rtrs_msg_info_req *msg;
struct rtrs_iu *iu;
int err;
@@ -910,7 +915,7 @@ static void rtrs_srv_info_req_done(struct ib_cq *cq, struct ib_wc *wc)
wc->byte_len);
goto close;
}
- ib_dma_sync_single_for_cpu(sess->s.dev->ib_dev, iu->dma_addr,
+ ib_dma_sync_single_for_cpu(srv_path->s.dev->ib_dev, iu->dma_addr,
iu->size, DMA_FROM_DEVICE);
msg = iu->buf;
if (le16_to_cpu(msg->type) != RTRS_MSG_INFO_REQ) {
@@ -923,22 +928,22 @@ static void rtrs_srv_info_req_done(struct ib_cq *cq, struct ib_wc *wc)
goto close;
out:
- rtrs_iu_free(iu, sess->s.dev->ib_dev, 1);
+ rtrs_iu_free(iu, srv_path->s.dev->ib_dev, 1);
return;
close:
- close_sess(sess);
+ close_path(srv_path);
goto out;
}
static int post_recv_info_req(struct rtrs_srv_con *con)
{
struct rtrs_path *s = con->c.path;
- struct rtrs_srv_sess *sess = to_srv_sess(s);
+ struct rtrs_srv_path *srv_path = to_srv_path(s);
struct rtrs_iu *rx_iu;
int err;
rx_iu = rtrs_iu_alloc(1, sizeof(struct rtrs_msg_info_req),
- GFP_KERNEL, sess->s.dev->ib_dev,
+ GFP_KERNEL, srv_path->s.dev->ib_dev,
DMA_FROM_DEVICE, rtrs_srv_info_req_done);
if (!rx_iu)
return -ENOMEM;
@@ -946,7 +951,7 @@ static int post_recv_info_req(struct rtrs_srv_con *con)
err = rtrs_iu_post_recv(&con->c, rx_iu);
if (err) {
rtrs_err(s, "rtrs_iu_post_recv(), err: %d\n", err);
- rtrs_iu_free(rx_iu, sess->s.dev->ib_dev, 1);
+ rtrs_iu_free(rx_iu, srv_path->s.dev->ib_dev, 1);
return err;
}
@@ -966,20 +971,20 @@ static int post_recv_io(struct rtrs_srv_con *con, size_t q_size)
return 0;
}
-static int post_recv_sess(struct rtrs_srv_sess *sess)
+static int post_recv_sess(struct rtrs_srv_path *srv_path)
{
- struct rtrs_srv *srv = sess->srv;
- struct rtrs_path *s = &sess->s;
+ struct rtrs_srv *srv = srv_path->srv;
+ struct rtrs_path *s = &srv_path->s;
size_t q_size;
int err, cid;
- for (cid = 0; cid < sess->s.con_num; cid++) {
+ for (cid = 0; cid < srv_path->s.con_num; cid++) {
if (cid == 0)
q_size = SERVICE_CON_QUEUE_DEPTH;
else
q_size = srv->queue_depth;
- err = post_recv_io(to_srv_con(sess->s.con[cid]), q_size);
+ err = post_recv_io(to_srv_con(srv_path->s.con[cid]), q_size);
if (err) {
rtrs_err(s, "post_recv_io(), err: %d\n", err);
return err;
@@ -994,8 +999,8 @@ static void process_read(struct rtrs_srv_con *con,
u32 buf_id, u32 off)
{
struct rtrs_path *s = con->c.path;
- struct rtrs_srv_sess *sess = to_srv_sess(s);
- struct rtrs_srv *srv = sess->srv;
+ struct rtrs_srv_path *srv_path = to_srv_path(s);
+ struct rtrs_srv *srv = srv_path->srv;
struct rtrs_srv_ctx *ctx = srv->ctx;
struct rtrs_srv_op *id;
@@ -1003,10 +1008,10 @@ static void process_read(struct rtrs_srv_con *con,
void *data;
int ret;
- if (sess->state != RTRS_SRV_CONNECTED) {
+ if (srv_path->state != RTRS_SRV_CONNECTED) {
rtrs_err_rl(s,
"Processing read request failed, session is disconnected, sess state %s\n",
- rtrs_srv_state_str(sess->state));
+ rtrs_srv_state_str(srv_path->state));
return;
}
if (msg->sg_cnt != 1 && msg->sg_cnt != 0) {
@@ -1014,9 +1019,9 @@ static void process_read(struct rtrs_srv_con *con,
"Processing read request failed, invalid message\n");
return;
}
- rtrs_srv_get_ops_ids(sess);
- rtrs_srv_update_rdma_stats(sess->stats, off, READ);
- id = sess->ops_ids[buf_id];
+ rtrs_srv_get_ops_ids(srv_path);
+ rtrs_srv_update_rdma_stats(srv_path->stats, off, READ);
+ id = srv_path->ops_ids[buf_id];
id->con = con;
id->dir = READ;
id->msg_id = buf_id;
@@ -1042,9 +1047,9 @@ static void process_read(struct rtrs_srv_con *con,
rtrs_err_rl(s,
"Sending err msg for failed RDMA-Write-Req failed, msg_id %d, err: %d\n",
buf_id, ret);
- close_sess(sess);
+ close_path(srv_path);
}
- rtrs_srv_put_ops_ids(sess);
+ rtrs_srv_put_ops_ids(srv_path);
}
static void process_write(struct rtrs_srv_con *con,
@@ -1052,8 +1057,8 @@ static void process_write(struct rtrs_srv_con *con,
u32 buf_id, u32 off)
{
struct rtrs_path *s = con->c.path;
- struct rtrs_srv_sess *sess = to_srv_sess(s);
- struct rtrs_srv *srv = sess->srv;
+ struct rtrs_srv_path *srv_path = to_srv_path(s);
+ struct rtrs_srv *srv = srv_path->srv;
struct rtrs_srv_ctx *ctx = srv->ctx;
struct rtrs_srv_op *id;
@@ -1061,15 +1066,15 @@ static void process_write(struct rtrs_srv_con *con,
void *data;
int ret;
- if (sess->state != RTRS_SRV_CONNECTED) {
+ if (srv_path->state != RTRS_SRV_CONNECTED) {
rtrs_err_rl(s,
"Processing write request failed, session is disconnected, sess state %s\n",
- rtrs_srv_state_str(sess->state));
+ rtrs_srv_state_str(srv_path->state));
return;
}
- rtrs_srv_get_ops_ids(sess);
- rtrs_srv_update_rdma_stats(sess->stats, off, WRITE);
- id = sess->ops_ids[buf_id];
+ rtrs_srv_get_ops_ids(srv_path);
+ rtrs_srv_update_rdma_stats(srv_path->stats, off, WRITE);
+ id = srv_path->ops_ids[buf_id];
id->con = con;
id->dir = WRITE;
id->msg_id = buf_id;
@@ -1094,20 +1099,21 @@ static void process_write(struct rtrs_srv_con *con,
rtrs_err_rl(s,
"Processing write request failed, sending I/O response failed, msg_id %d, err: %d\n",
buf_id, ret);
- close_sess(sess);
+ close_path(srv_path);
}
- rtrs_srv_put_ops_ids(sess);
+ rtrs_srv_put_ops_ids(srv_path);
}
static void process_io_req(struct rtrs_srv_con *con, void *msg,
u32 id, u32 off)
{
struct rtrs_path *s = con->c.path;
- struct rtrs_srv_sess *sess = to_srv_sess(s);
+ struct rtrs_srv_path *srv_path = to_srv_path(s);
struct rtrs_msg_rdma_hdr *hdr;
unsigned int type;
- ib_dma_sync_single_for_cpu(sess->s.dev->ib_dev, sess->dma_addr[id],
+ ib_dma_sync_single_for_cpu(srv_path->s.dev->ib_dev,
+ srv_path->dma_addr[id],
max_chunk_size, DMA_BIDIRECTIONAL);
hdr = msg;
type = le16_to_cpu(hdr->type);
@@ -1129,7 +1135,7 @@ static void process_io_req(struct rtrs_srv_con *con, void *msg,
return;
err:
- close_sess(sess);
+ close_path(srv_path);
}
static void rtrs_srv_inv_rkey_done(struct ib_cq *cq, struct ib_wc *wc)
@@ -1138,15 +1144,15 @@ static void rtrs_srv_inv_rkey_done(struct ib_cq *cq, struct ib_wc *wc)
container_of(wc->wr_cqe, typeof(*mr), inv_cqe);
struct rtrs_srv_con *con = to_srv_con(wc->qp->qp_context);
struct rtrs_path *s = con->c.path;
- struct rtrs_srv_sess *sess = to_srv_sess(s);
- struct rtrs_srv *srv = sess->srv;
+ struct rtrs_srv_path *srv_path = to_srv_path(s);
+ struct rtrs_srv *srv = srv_path->srv;
u32 msg_id, off;
void *data;
if (wc->status != IB_WC_SUCCESS) {
rtrs_err(s, "Failed IB_WR_LOCAL_INV: %s\n",
ib_wc_status_msg(wc->status));
- close_sess(sess);
+ close_path(srv_path);
}
msg_id = mr->msg_id;
off = mr->msg_off;
@@ -1195,8 +1201,8 @@ static void rtrs_srv_rdma_done(struct ib_cq *cq, struct ib_wc *wc)
{
struct rtrs_srv_con *con = to_srv_con(wc->qp->qp_context);
struct rtrs_path *s = con->c.path;
- struct rtrs_srv_sess *sess = to_srv_sess(s);
- struct rtrs_srv *srv = sess->srv;
+ struct rtrs_srv_path *srv_path = to_srv_path(s);
+ struct rtrs_srv *srv = srv_path->srv;
u32 imm_type, imm_payload;
int err;
@@ -1206,7 +1212,7 @@ static void rtrs_srv_rdma_done(struct ib_cq *cq, struct ib_wc *wc)
"%s (wr_cqe: %p, type: %d, vendor_err: 0x%x, len: %u)\n",
ib_wc_status_msg(wc->status), wc->wr_cqe,
wc->opcode, wc->vendor_err, wc->byte_len);
- close_sess(sess);
+ close_path(srv_path);
}
return;
}
@@ -1222,7 +1228,7 @@ static void rtrs_srv_rdma_done(struct ib_cq *cq, struct ib_wc *wc)
err = rtrs_post_recv_empty(&con->c, &io_comp_cqe);
if (err) {
rtrs_err(s, "rtrs_post_recv(), err: %d\n", err);
- close_sess(sess);
+ close_path(srv_path);
break;
}
rtrs_from_imm(be32_to_cpu(wc->ex.imm_data),
@@ -1231,16 +1237,16 @@ static void rtrs_srv_rdma_done(struct ib_cq *cq, struct ib_wc *wc)
u32 msg_id, off;
void *data;
- msg_id = imm_payload >> sess->mem_bits;
- off = imm_payload & ((1 << sess->mem_bits) - 1);
+ msg_id = imm_payload >> srv_path->mem_bits;
+ off = imm_payload & ((1 << srv_path->mem_bits) - 1);
if (msg_id >= srv->queue_depth || off >= max_chunk_size) {
rtrs_err(s, "Wrong msg_id %u, off %u\n",
msg_id, off);
- close_sess(sess);
+ close_path(srv_path);
return;
}
if (always_invalidate) {
- struct rtrs_srv_mr *mr = &sess->mrs[msg_id];
+ struct rtrs_srv_mr *mr = &srv_path->mrs[msg_id];
mr->msg_off = off;
mr->msg_id = msg_id;
@@ -1248,7 +1254,7 @@ static void rtrs_srv_rdma_done(struct ib_cq *cq, struct ib_wc *wc)
if (err) {
rtrs_err(s, "rtrs_post_recv(), err: %d\n",
err);
- close_sess(sess);
+ close_path(srv_path);
break;
}
} else {
@@ -1257,10 +1263,10 @@ static void rtrs_srv_rdma_done(struct ib_cq *cq, struct ib_wc *wc)
}
} else if (imm_type == RTRS_HB_MSG_IMM) {
WARN_ON(con->c.cid);
- rtrs_send_hb_ack(&sess->s);
+ rtrs_send_hb_ack(&srv_path->s);
} else if (imm_type == RTRS_HB_ACK_IMM) {
WARN_ON(con->c.cid);
- sess->s.hb_missed_cnt = 0;
+ srv_path->s.hb_missed_cnt = 0;
} else {
rtrs_wrn(s, "Unknown IMM type %u\n", imm_type);
}
@@ -1284,22 +1290,22 @@ static void rtrs_srv_rdma_done(struct ib_cq *cq, struct ib_wc *wc)
}
/**
- * rtrs_srv_get_sess_name() - Get rtrs_srv peer hostname.
+ * rtrs_srv_get_path_name() - Get rtrs_srv peer hostname.
* @srv: Session
* @sessname: Sessname buffer
* @len: Length of sessname buffer
*/
-int rtrs_srv_get_sess_name(struct rtrs_srv *srv, char *sessname, size_t len)
+int rtrs_srv_get_path_name(struct rtrs_srv *srv, char *sessname, size_t len)
{
- struct rtrs_srv_sess *sess;
+ struct rtrs_srv_path *srv_path;
int err = -ENOTCONN;
mutex_lock(&srv->paths_mutex);
- list_for_each_entry(sess, &srv->paths_list, s.entry) {
- if (sess->state != RTRS_SRV_CONNECTED)
+ list_for_each_entry(srv_path, &srv->paths_list, s.entry) {
+ if (srv_path->state != RTRS_SRV_CONNECTED)
continue;
- strscpy(sessname, sess->s.sessname,
- min_t(size_t, sizeof(sess->s.sessname), len));
+ strscpy(sessname, srv_path->s.sessname,
+ min_t(size_t, sizeof(srv_path->s.sessname), len));
err = 0;
break;
}
@@ -1307,7 +1313,7 @@ int rtrs_srv_get_sess_name(struct rtrs_srv *srv, char *sessname, size_t len)
return err;
}
-EXPORT_SYMBOL(rtrs_srv_get_sess_name);
+EXPORT_SYMBOL(rtrs_srv_get_path_name);
/**
* rtrs_srv_get_queue_depth() - Get rtrs_srv qdepth.
@@ -1319,22 +1325,22 @@ int rtrs_srv_get_queue_depth(struct rtrs_srv *srv)
}
EXPORT_SYMBOL(rtrs_srv_get_queue_depth);
-static int find_next_bit_ring(struct rtrs_srv_sess *sess)
+static int find_next_bit_ring(struct rtrs_srv_path *srv_path)
{
- struct ib_device *ib_dev = sess->s.dev->ib_dev;
+ struct ib_device *ib_dev = srv_path->s.dev->ib_dev;
int v;
- v = cpumask_next(sess->cur_cq_vector, &cq_affinity_mask);
+ v = cpumask_next(srv_path->cur_cq_vector, &cq_affinity_mask);
if (v >= nr_cpu_ids || v >= ib_dev->num_comp_vectors)
v = cpumask_first(&cq_affinity_mask);
return v;
}
-static int rtrs_srv_get_next_cq_vector(struct rtrs_srv_sess *sess)
+static int rtrs_srv_get_next_cq_vector(struct rtrs_srv_path *srv_path)
{
- sess->cur_cq_vector = find_next_bit_ring(sess);
+ srv_path->cur_cq_vector = find_next_bit_ring(srv_path);
- return sess->cur_cq_vector;
+ return srv_path->cur_cq_vector;
}
static void rtrs_srv_dev_release(struct device *dev)
@@ -1439,22 +1445,22 @@ static void put_srv(struct rtrs_srv *srv)
}
static void __add_path_to_srv(struct rtrs_srv *srv,
- struct rtrs_srv_sess *sess)
+ struct rtrs_srv_path *srv_path)
{
- list_add_tail(&sess->s.entry, &srv->paths_list);
+ list_add_tail(&srv_path->s.entry, &srv->paths_list);
srv->paths_num++;
WARN_ON(srv->paths_num >= MAX_PATHS_NUM);
}
-static void del_path_from_srv(struct rtrs_srv_sess *sess)
+static void del_path_from_srv(struct rtrs_srv_path *srv_path)
{
- struct rtrs_srv *srv = sess->srv;
+ struct rtrs_srv *srv = srv_path->srv;
if (WARN_ON(!srv))
return;
mutex_lock(&srv->paths_mutex);
- list_del(&sess->s.entry);
+ list_del(&srv_path->s.entry);
WARN_ON(!srv->paths_num);
srv->paths_num--;
mutex_unlock(&srv->paths_mutex);
@@ -1487,44 +1493,44 @@ static int sockaddr_cmp(const struct sockaddr *a, const struct sockaddr *b)
static bool __is_path_w_addr_exists(struct rtrs_srv *srv,
struct rdma_addr *addr)
{
- struct rtrs_srv_sess *sess;
+ struct rtrs_srv_path *srv_path;
- list_for_each_entry(sess, &srv->paths_list, s.entry)
- if (!sockaddr_cmp((struct sockaddr *)&sess->s.dst_addr,
+ list_for_each_entry(srv_path, &srv->paths_list, s.entry)
+ if (!sockaddr_cmp((struct sockaddr *)&srv_path->s.dst_addr,
(struct sockaddr *)&addr->dst_addr) &&
- !sockaddr_cmp((struct sockaddr *)&sess->s.src_addr,
+ !sockaddr_cmp((struct sockaddr *)&srv_path->s.src_addr,
(struct sockaddr *)&addr->src_addr))
return true;
return false;
}
-static void free_sess(struct rtrs_srv_sess *sess)
+static void free_path(struct rtrs_srv_path *srv_path)
{
- if (sess->kobj.state_in_sysfs) {
- kobject_del(&sess->kobj);
- kobject_put(&sess->kobj);
+ if (srv_path->kobj.state_in_sysfs) {
+ kobject_del(&srv_path->kobj);
+ kobject_put(&srv_path->kobj);
} else {
- kfree(sess->stats);
- kfree(sess);
+ kfree(srv_path->stats);
+ kfree(srv_path);
}
}
static void rtrs_srv_close_work(struct work_struct *work)
{
- struct rtrs_srv_sess *sess;
+ struct rtrs_srv_path *srv_path;
struct rtrs_srv_con *con;
int i;
- sess = container_of(work, typeof(*sess), close_work);
+ srv_path = container_of(work, typeof(*srv_path), close_work);
- rtrs_srv_destroy_sess_files(sess);
- rtrs_srv_stop_hb(sess);
+ rtrs_srv_destroy_path_files(srv_path);
+ rtrs_srv_stop_hb(srv_path);
- for (i = 0; i < sess->s.con_num; i++) {
- if (!sess->s.con[i])
+ for (i = 0; i < srv_path->s.con_num; i++) {
+ if (!srv_path->s.con[i])
continue;
- con = to_srv_con(sess->s.con[i]);
+ con = to_srv_con(srv_path->s.con[i]);
rdma_disconnect(con->c.cm_id);
ib_drain_qp(con->c.qp);
}
@@ -1533,41 +1539,41 @@ static void rtrs_srv_close_work(struct work_struct *work)
* Degrade ref count to the usual model with a single shared
* atomic_t counter
*/
- percpu_ref_kill(&sess->ids_inflight_ref);
+ percpu_ref_kill(&srv_path->ids_inflight_ref);
/* Wait for all completion */
- wait_for_completion(&sess->complete_done);
+ wait_for_completion(&srv_path->complete_done);
/* Notify upper layer if we are the last path */
- rtrs_srv_sess_down(sess);
+ rtrs_srv_path_down(srv_path);
- unmap_cont_bufs(sess);
- rtrs_srv_free_ops_ids(sess);
+ unmap_cont_bufs(srv_path);
+ rtrs_srv_free_ops_ids(srv_path);
- for (i = 0; i < sess->s.con_num; i++) {
- if (!sess->s.con[i])
+ for (i = 0; i < srv_path->s.con_num; i++) {
+ if (!srv_path->s.con[i])
continue;
- con = to_srv_con(sess->s.con[i]);
+ con = to_srv_con(srv_path->s.con[i]);
rtrs_cq_qp_destroy(&con->c);
rdma_destroy_id(con->c.cm_id);
kfree(con);
}
- rtrs_ib_dev_put(sess->s.dev);
+ rtrs_ib_dev_put(srv_path->s.dev);
- del_path_from_srv(sess);
- put_srv(sess->srv);
- sess->srv = NULL;
- rtrs_srv_change_state(sess, RTRS_SRV_CLOSED);
+ del_path_from_srv(srv_path);
+ put_srv(srv_path->srv);
+ srv_path->srv = NULL;
+ rtrs_srv_change_state(srv_path, RTRS_SRV_CLOSED);
- kfree(sess->dma_addr);
- kfree(sess->s.con);
- free_sess(sess);
+ kfree(srv_path->dma_addr);
+ kfree(srv_path->s.con);
+ free_path(srv_path);
}
-static int rtrs_rdma_do_accept(struct rtrs_srv_sess *sess,
+static int rtrs_rdma_do_accept(struct rtrs_srv_path *srv_path,
struct rdma_cm_id *cm_id)
{
- struct rtrs_srv *srv = sess->srv;
+ struct rtrs_srv *srv = srv_path->srv;
struct rtrs_msg_conn_rsp msg;
struct rdma_conn_param param;
int err;
@@ -1615,25 +1621,25 @@ static int rtrs_rdma_do_reject(struct rdma_cm_id *cm_id, int errno)
return errno;
}
-static struct rtrs_srv_sess *
-__find_sess(struct rtrs_srv *srv, const uuid_t *sess_uuid)
+static struct rtrs_srv_path *
+__find_path(struct rtrs_srv *srv, const uuid_t *sess_uuid)
{
- struct rtrs_srv_sess *sess;
+ struct rtrs_srv_path *srv_path;
- list_for_each_entry(sess, &srv->paths_list, s.entry) {
- if (uuid_equal(&sess->s.uuid, sess_uuid))
- return sess;
+ list_for_each_entry(srv_path, &srv->paths_list, s.entry) {
+ if (uuid_equal(&srv_path->s.uuid, sess_uuid))
+ return srv_path;
}
return NULL;
}
-static int create_con(struct rtrs_srv_sess *sess,
+static int create_con(struct rtrs_srv_path *srv_path,
struct rdma_cm_id *cm_id,
unsigned int cid)
{
- struct rtrs_srv *srv = sess->srv;
- struct rtrs_path *s = &sess->s;
+ struct rtrs_srv *srv = srv_path->srv;
+ struct rtrs_path *s = &srv_path->s;
struct rtrs_srv_con *con;
u32 cq_num, max_send_wr, max_recv_wr, wr_limit;
@@ -1648,10 +1654,10 @@ static int create_con(struct rtrs_srv_sess *sess,
spin_lock_init(&con->rsp_wr_wait_lock);
INIT_LIST_HEAD(&con->rsp_wr_wait_list);
con->c.cm_id = cm_id;
- con->c.path = &sess->s;
+ con->c.path = &srv_path->s;
con->c.cid = cid;
atomic_set(&con->c.wr_cnt, 1);
- wr_limit = sess->s.dev->ib_dev->attrs.max_qp_wr;
+ wr_limit = srv_path->s.dev->ib_dev->attrs.max_qp_wr;
if (con->c.cid == 0) {
/*
@@ -1684,10 +1690,10 @@ static int create_con(struct rtrs_srv_sess *sess,
}
cq_num = max_send_wr + max_recv_wr;
atomic_set(&con->c.sq_wr_avail, max_send_wr);
- cq_vector = rtrs_srv_get_next_cq_vector(sess);
+ cq_vector = rtrs_srv_get_next_cq_vector(srv_path);
/* TODO: SOFTIRQ can be faster, but be careful with softirq context */
- err = rtrs_cq_qp_create(&sess->s, &con->c, 1, cq_vector, cq_num,
+ err = rtrs_cq_qp_create(&srv_path->s, &con->c, 1, cq_vector, cq_num,
max_send_wr, max_recv_wr,
IB_POLL_WORKQUEUE);
if (err) {
@@ -1699,8 +1705,8 @@ static int create_con(struct rtrs_srv_sess *sess,
if (err)
goto free_cqqp;
}
- WARN_ON(sess->s.con[cid]);
- sess->s.con[cid] = &con->c;
+ WARN_ON(srv_path->s.con[cid]);
+ srv_path->s.con[cid] = &con->c;
/*
* Change context from server to current connection. The other
@@ -1719,13 +1725,13 @@ static int create_con(struct rtrs_srv_sess *sess,
return err;
}
-static struct rtrs_srv_sess *__alloc_sess(struct rtrs_srv *srv,
+static struct rtrs_srv_path *__alloc_path(struct rtrs_srv *srv,
struct rdma_cm_id *cm_id,
unsigned int con_num,
unsigned int recon_cnt,
const uuid_t *uuid)
{
- struct rtrs_srv_sess *sess;
+ struct rtrs_srv_path *srv_path;
int err = -ENOMEM;
char str[NAME_MAX];
struct rtrs_addr path;
@@ -1739,74 +1745,76 @@ static struct rtrs_srv_sess *__alloc_sess(struct rtrs_srv *srv,
pr_err("Path with same addr exists\n");
goto err;
}
- sess = kzalloc(sizeof(*sess), GFP_KERNEL);
- if (!sess)
+ srv_path = kzalloc(sizeof(*srv_path), GFP_KERNEL);
+ if (!srv_path)
goto err;
- sess->stats = kzalloc(sizeof(*sess->stats), GFP_KERNEL);
- if (!sess->stats)
+ srv_path->stats = kzalloc(sizeof(*srv_path->stats), GFP_KERNEL);
+ if (!srv_path->stats)
goto err_free_sess;
- sess->stats->sess = sess;
+ srv_path->stats->srv_path = srv_path;
- sess->dma_addr = kcalloc(srv->queue_depth, sizeof(*sess->dma_addr),
- GFP_KERNEL);
- if (!sess->dma_addr)
+ srv_path->dma_addr = kcalloc(srv->queue_depth,
+ sizeof(*srv_path->dma_addr),
+ GFP_KERNEL);
+ if (!srv_path->dma_addr)
goto err_free_stats;
- sess->s.con = kcalloc(con_num, sizeof(*sess->s.con), GFP_KERNEL);
- if (!sess->s.con)
+ srv_path->s.con = kcalloc(con_num, sizeof(*srv_path->s.con),
+ GFP_KERNEL);
+ if (!srv_path->s.con)
goto err_free_dma_addr;
- sess->state = RTRS_SRV_CONNECTING;
- sess->srv = srv;
- sess->cur_cq_vector = -1;
- sess->s.dst_addr = cm_id->route.addr.dst_addr;
- sess->s.src_addr = cm_id->route.addr.src_addr;
+ srv_path->state = RTRS_SRV_CONNECTING;
+ srv_path->srv = srv;
+ srv_path->cur_cq_vector = -1;
+ srv_path->s.dst_addr = cm_id->route.addr.dst_addr;
+ srv_path->s.src_addr = cm_id->route.addr.src_addr;
/* temporary until receiving session-name from client */
- path.src = &sess->s.src_addr;
- path.dst = &sess->s.dst_addr;
+ path.src = &srv_path->s.src_addr;
+ path.dst = &srv_path->s.dst_addr;
rtrs_addr_to_str(&path, str, sizeof(str));
- strscpy(sess->s.sessname, str, sizeof(sess->s.sessname));
-
- sess->s.con_num = con_num;
- sess->s.irq_con_num = con_num;
- sess->s.recon_cnt = recon_cnt;
- uuid_copy(&sess->s.uuid, uuid);
- spin_lock_init(&sess->state_lock);
- INIT_WORK(&sess->close_work, rtrs_srv_close_work);
- rtrs_srv_init_hb(sess);
-
- sess->s.dev = rtrs_ib_dev_find_or_add(cm_id->device, &dev_pd);
- if (!sess->s.dev) {
+ strscpy(srv_path->s.sessname, str, sizeof(srv_path->s.sessname));
+
+ srv_path->s.con_num = con_num;
+ srv_path->s.irq_con_num = con_num;
+ srv_path->s.recon_cnt = recon_cnt;
+ uuid_copy(&srv_path->s.uuid, uuid);
+ spin_lock_init(&srv_path->state_lock);
+ INIT_WORK(&srv_path->close_work, rtrs_srv_close_work);
+ rtrs_srv_init_hb(srv_path);
+
+ srv_path->s.dev = rtrs_ib_dev_find_or_add(cm_id->device, &dev_pd);
+ if (!srv_path->s.dev) {
err = -ENOMEM;
goto err_free_con;
}
- err = map_cont_bufs(sess);
+ err = map_cont_bufs(srv_path);
if (err)
goto err_put_dev;
- err = rtrs_srv_alloc_ops_ids(sess);
+ err = rtrs_srv_alloc_ops_ids(srv_path);
if (err)
goto err_unmap_bufs;
- __add_path_to_srv(srv, sess);
+ __add_path_to_srv(srv, srv_path);
- return sess;
+ return srv_path;
err_unmap_bufs:
- unmap_cont_bufs(sess);
+ unmap_cont_bufs(srv_path);
err_put_dev:
- rtrs_ib_dev_put(sess->s.dev);
+ rtrs_ib_dev_put(srv_path->s.dev);
err_free_con:
- kfree(sess->s.con);
+ kfree(srv_path->s.con);
err_free_dma_addr:
- kfree(sess->dma_addr);
+ kfree(srv_path->dma_addr);
err_free_stats:
- kfree(sess->stats);
+ kfree(srv_path->stats);
err_free_sess:
- kfree(sess);
+ kfree(srv_path);
err:
return ERR_PTR(err);
}
@@ -1816,7 +1824,7 @@ static int rtrs_rdma_connect(struct rdma_cm_id *cm_id,
size_t len)
{
struct rtrs_srv_ctx *ctx = cm_id->context;
- struct rtrs_srv_sess *sess;
+ struct rtrs_srv_path *srv_path;
struct rtrs_srv *srv;
u16 version, con_num, cid;
@@ -1857,16 +1865,16 @@ static int rtrs_rdma_connect(struct rdma_cm_id *cm_id,
goto reject_w_err;
}
mutex_lock(&srv->paths_mutex);
- sess = __find_sess(srv, &msg->sess_uuid);
- if (sess) {
- struct rtrs_path *s = &sess->s;
+ srv_path = __find_path(srv, &msg->sess_uuid);
+ if (srv_path) {
+ struct rtrs_path *s = &srv_path->s;
/* Session already holds a reference */
put_srv(srv);
- if (sess->state != RTRS_SRV_CONNECTING) {
+ if (srv_path->state != RTRS_SRV_CONNECTING) {
rtrs_err(s, "Session in wrong state: %s\n",
- rtrs_srv_state_str(sess->state));
+ rtrs_srv_state_str(srv_path->state));
mutex_unlock(&srv->paths_mutex);
goto reject_w_err;
}
@@ -1886,19 +1894,19 @@ static int rtrs_rdma_connect(struct rdma_cm_id *cm_id,
goto reject_w_err;
}
} else {
- sess = __alloc_sess(srv, cm_id, con_num, recon_cnt,
+ srv_path = __alloc_path(srv, cm_id, con_num, recon_cnt,
&msg->sess_uuid);
- if (IS_ERR(sess)) {
+ if (IS_ERR(srv_path)) {
mutex_unlock(&srv->paths_mutex);
put_srv(srv);
- err = PTR_ERR(sess);
+ err = PTR_ERR(srv_path);
pr_err("RTRS server session allocation failed: %d\n", err);
goto reject_w_err;
}
}
- err = create_con(sess, cm_id, cid);
+ err = create_con(srv_path, cm_id, cid);
if (err) {
- rtrs_err((&sess->s), "create_con(), error %d\n", err);
+ rtrs_err((&srv_path->s), "create_con(), error %d\n", err);
rtrs_rdma_do_reject(cm_id, err);
/*
* Since session has other connections we follow normal way
@@ -1907,9 +1915,9 @@ static int rtrs_rdma_connect(struct rdma_cm_id *cm_id,
*/
goto close_and_return_err;
}
- err = rtrs_rdma_do_accept(sess, cm_id);
+ err = rtrs_rdma_do_accept(srv_path, cm_id);
if (err) {
- rtrs_err((&sess->s), "rtrs_rdma_do_accept(), error %d\n", err);
+ rtrs_err((&srv_path->s), "rtrs_rdma_do_accept(), error %d\n", err);
rtrs_rdma_do_reject(cm_id, err);
/*
* Since current connection was successfully added to the
@@ -1929,7 +1937,7 @@ static int rtrs_rdma_connect(struct rdma_cm_id *cm_id,
close_and_return_err:
mutex_unlock(&srv->paths_mutex);
- close_sess(sess);
+ close_path(srv_path);
return err;
}
@@ -1937,14 +1945,14 @@ static int rtrs_rdma_connect(struct rdma_cm_id *cm_id,
static int rtrs_srv_rdma_cm_handler(struct rdma_cm_id *cm_id,
struct rdma_cm_event *ev)
{
- struct rtrs_srv_sess *sess = NULL;
+ struct rtrs_srv_path *srv_path = NULL;
struct rtrs_path *s = NULL;
if (ev->event != RDMA_CM_EVENT_CONNECT_REQUEST) {
struct rtrs_con *c = cm_id->context;
s = c->path;
- sess = to_srv_sess(s);
+ srv_path = to_srv_path(s);
}
switch (ev->event) {
@@ -1968,7 +1976,7 @@ static int rtrs_srv_rdma_cm_handler(struct rdma_cm_id *cm_id,
case RDMA_CM_EVENT_ADDR_CHANGE:
case RDMA_CM_EVENT_TIMEWAIT_EXIT:
case RDMA_CM_EVENT_DEVICE_REMOVAL:
- close_sess(sess);
+ close_path(srv_path);
break;
default:
pr_err("Ignoring unexpected CM event %s, err %d\n",
@@ -2176,13 +2184,13 @@ struct rtrs_srv_ctx *rtrs_srv_open(struct rtrs_srv_ops *ops, u16 port)
}
EXPORT_SYMBOL(rtrs_srv_open);
-static void close_sessions(struct rtrs_srv *srv)
+static void close_paths(struct rtrs_srv *srv)
{
- struct rtrs_srv_sess *sess;
+ struct rtrs_srv_path *srv_path;
mutex_lock(&srv->paths_mutex);
- list_for_each_entry(sess, &srv->paths_list, s.entry)
- close_sess(sess);
+ list_for_each_entry(srv_path, &srv->paths_list, s.entry)
+ close_path(srv_path);
mutex_unlock(&srv->paths_mutex);
}
@@ -2192,7 +2200,7 @@ static void close_ctx(struct rtrs_srv_ctx *ctx)
mutex_lock(&ctx->srv_mutex);
list_for_each_entry(srv, &ctx->srv_list, ctx_list)
- close_sessions(srv);
+ close_paths(srv);
mutex_unlock(&ctx->srv_mutex);
flush_workqueue(rtrs_wq);
}
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-srv.h b/drivers/infiniband/ulp/rtrs/rtrs-srv.h
index c2c08ec8d9e8..6119e6708080 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-srv.h
+++ b/drivers/infiniband/ulp/rtrs/rtrs-srv.h
@@ -37,7 +37,7 @@ struct rtrs_srv_stats_rdma_stats {
struct rtrs_srv_stats {
struct kobject kobj_stats;
struct rtrs_srv_stats_rdma_stats rdma_stats;
- struct rtrs_srv_sess *sess;
+ struct rtrs_srv_path *srv_path;
};
struct rtrs_srv_con {
@@ -71,7 +71,7 @@ struct rtrs_srv_mr {
struct rtrs_iu *iu; /* send buffer for new rkey msg */
};
-struct rtrs_srv_sess {
+struct rtrs_srv_path {
struct rtrs_path s;
struct rtrs_srv *srv;
struct work_struct close_work;
@@ -125,7 +125,7 @@ struct rtrs_srv_ib_ctx {
extern struct class *rtrs_dev_class;
-void close_sess(struct rtrs_srv_sess *sess);
+void close_path(struct rtrs_srv_path *srv_path);
static inline void rtrs_srv_update_rdma_stats(struct rtrs_srv_stats *s,
size_t size, int d)
@@ -142,7 +142,7 @@ ssize_t rtrs_srv_reset_all_help(struct rtrs_srv_stats *stats,
char *page, size_t len);
/* functions which are implemented in rtrs-srv-sysfs.c */
-int rtrs_srv_create_sess_files(struct rtrs_srv_sess *sess);
-void rtrs_srv_destroy_sess_files(struct rtrs_srv_sess *sess);
+int rtrs_srv_create_path_files(struct rtrs_srv_path *srv_path);
+void rtrs_srv_destroy_path_files(struct rtrs_srv_path *srv_path);
#endif /* RTRS_SRV_H */
diff --git a/drivers/infiniband/ulp/rtrs/rtrs.h b/drivers/infiniband/ulp/rtrs/rtrs.h
index 859c79685daf..e28a53ff4b0b 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs.h
+++ b/drivers/infiniband/ulp/rtrs/rtrs.h
@@ -175,7 +175,7 @@ bool rtrs_srv_resp_rdma(struct rtrs_srv_op *id, int errno);
void rtrs_srv_set_sess_priv(struct rtrs_srv *sess, void *priv);
-int rtrs_srv_get_sess_name(struct rtrs_srv *sess, char *sessname, size_t len);
+int rtrs_srv_get_path_name(struct rtrs_srv *sess, char *sessname, size_t len);
int rtrs_srv_get_queue_depth(struct rtrs_srv *sess);
--
2.25.1
^ permalink raw reply related [flat|nested] 13+ messages in thread
* [PATCHv2 for-next 3/5] RDMA/rtrs-clt: Rename rtrs_clt_sess to rtrs_clt_path
2022-01-03 13:33 [PATCHv2 for-next 0/5] RTRS renaming Jack Wang
2022-01-03 13:33 ` [PATCHv2 for-next 1/5] RDMA/rtrs: Rename rtrs_sess to rtrs_path Jack Wang
2022-01-03 13:33 ` [PATCHv2 for-next 2/5] RDMA/rtrs-srv: Rename rtrs_srv_sess to rtrs_srv_path Jack Wang
@ 2022-01-03 13:33 ` Jack Wang
2022-01-04 6:52 ` Guoqing Jiang
2022-01-03 13:33 ` [PATCHv2 for-next 4/5] RDMA/rtrs-srv: Rename rtrs_srv to rtrs_srv_sess Jack Wang
2022-01-03 13:33 ` [PATCHv2 for-next 5/5] RDMA/rtrs-clt: Rename rtrs_clt to rtrs_clt_sess Jack Wang
4 siblings, 1 reply; 13+ messages in thread
From: Jack Wang @ 2022-01-03 13:33 UTC (permalink / raw)
To: linux-rdma
Cc: bvanassche, leon, jgg, haris.iqbal, jinpu.wang, Vaishali Thakkar
From: Vaishali Thakkar <vaishali.thakkar@ionos.com>
rtrs_clt_sess is used for paths and not sessions on
the client side. This creates confusion so let's
rename it to rtrs_clt_path. Also, rename related
variables and functions.
Coccinelle is used to do the transformations for most
of the occurrences and remaining ones were handled
manually.
Signed-off-by: Vaishali Thakkar <vaishali.thakkar@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
---
drivers/infiniband/ulp/rtrs/rtrs-clt-stats.c | 8 +-
drivers/infiniband/ulp/rtrs/rtrs-clt-sysfs.c | 123 +--
drivers/infiniband/ulp/rtrs/rtrs-clt.c | 993 ++++++++++---------
drivers/infiniband/ulp/rtrs/rtrs-clt.h | 20 +-
drivers/infiniband/ulp/rtrs/rtrs.h | 4 +-
5 files changed, 583 insertions(+), 565 deletions(-)
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt-stats.c b/drivers/infiniband/ulp/rtrs/rtrs-clt-stats.c
index 608069b7c303..385a19846c24 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-clt-stats.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-clt-stats.c
@@ -13,8 +13,8 @@
void rtrs_clt_update_wc_stats(struct rtrs_clt_con *con)
{
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
- struct rtrs_clt_stats *stats = sess->stats;
+ struct rtrs_clt_path *clt_path = to_clt_path(con->c.path);
+ struct rtrs_clt_stats *stats = clt_path->stats;
struct rtrs_clt_stats_pcpu *s;
int cpu;
@@ -180,8 +180,8 @@ static inline void rtrs_clt_update_rdma_stats(struct rtrs_clt_stats *stats,
void rtrs_clt_update_all_stats(struct rtrs_clt_io_req *req, int dir)
{
struct rtrs_clt_con *con = req->con;
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
- struct rtrs_clt_stats *stats = sess->stats;
+ struct rtrs_clt_path *clt_path = to_clt_path(con->c.path);
+ struct rtrs_clt_stats *stats = clt_path->stats;
unsigned int len;
len = req->usr_len + req->data_len;
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt-sysfs.c b/drivers/infiniband/ulp/rtrs/rtrs-clt-sysfs.c
index 0e69180c3771..834f6d30487c 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-clt-sysfs.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-clt-sysfs.c
@@ -16,21 +16,21 @@
#define MIN_MAX_RECONN_ATT -1
#define MAX_MAX_RECONN_ATT 9999
-static void rtrs_clt_sess_release(struct kobject *kobj)
+static void rtrs_clt_path_release(struct kobject *kobj)
{
- struct rtrs_clt_sess *sess;
+ struct rtrs_clt_path *clt_path;
- sess = container_of(kobj, struct rtrs_clt_sess, kobj);
+ clt_path = container_of(kobj, struct rtrs_clt_path, kobj);
- free_sess(sess);
+ free_path(clt_path);
}
static struct kobj_type ktype_sess = {
.sysfs_ops = &kobj_sysfs_ops,
- .release = rtrs_clt_sess_release
+ .release = rtrs_clt_path_release
};
-static void rtrs_clt_sess_stats_release(struct kobject *kobj)
+static void rtrs_clt_path_stats_release(struct kobject *kobj)
{
struct rtrs_clt_stats *stats;
@@ -43,7 +43,7 @@ static void rtrs_clt_sess_stats_release(struct kobject *kobj)
static struct kobj_type ktype_stats = {
.sysfs_ops = &kobj_sysfs_ops,
- .release = rtrs_clt_sess_stats_release,
+ .release = rtrs_clt_path_stats_release,
};
static ssize_t max_reconnect_attempts_show(struct device *dev,
@@ -197,10 +197,10 @@ static DEVICE_ATTR_RW(add_path);
static ssize_t rtrs_clt_state_show(struct kobject *kobj,
struct kobj_attribute *attr, char *page)
{
- struct rtrs_clt_sess *sess;
+ struct rtrs_clt_path *clt_path;
- sess = container_of(kobj, struct rtrs_clt_sess, kobj);
- if (sess->state == RTRS_CLT_CONNECTED)
+ clt_path = container_of(kobj, struct rtrs_clt_path, kobj);
+ if (clt_path->state == RTRS_CLT_CONNECTED)
return sysfs_emit(page, "connected\n");
return sysfs_emit(page, "disconnected\n");
@@ -219,16 +219,16 @@ static ssize_t rtrs_clt_reconnect_store(struct kobject *kobj,
struct kobj_attribute *attr,
const char *buf, size_t count)
{
- struct rtrs_clt_sess *sess;
+ struct rtrs_clt_path *clt_path;
int ret;
- sess = container_of(kobj, struct rtrs_clt_sess, kobj);
+ clt_path = container_of(kobj, struct rtrs_clt_path, kobj);
if (!sysfs_streq(buf, "1")) {
- rtrs_err(sess->clt, "%s: unknown value: '%s'\n",
+ rtrs_err(clt_path->clt, "%s: unknown value: '%s'\n",
attr->attr.name, buf);
return -EINVAL;
}
- ret = rtrs_clt_reconnect_from_sysfs(sess);
+ ret = rtrs_clt_reconnect_from_sysfs(clt_path);
if (ret)
return ret;
@@ -249,15 +249,15 @@ static ssize_t rtrs_clt_disconnect_store(struct kobject *kobj,
struct kobj_attribute *attr,
const char *buf, size_t count)
{
- struct rtrs_clt_sess *sess;
+ struct rtrs_clt_path *clt_path;
- sess = container_of(kobj, struct rtrs_clt_sess, kobj);
+ clt_path = container_of(kobj, struct rtrs_clt_path, kobj);
if (!sysfs_streq(buf, "1")) {
- rtrs_err(sess->clt, "%s: unknown value: '%s'\n",
+ rtrs_err(clt_path->clt, "%s: unknown value: '%s'\n",
attr->attr.name, buf);
return -EINVAL;
}
- rtrs_clt_close_conns(sess, true);
+ rtrs_clt_close_conns(clt_path, true);
return count;
}
@@ -276,16 +276,16 @@ static ssize_t rtrs_clt_remove_path_store(struct kobject *kobj,
struct kobj_attribute *attr,
const char *buf, size_t count)
{
- struct rtrs_clt_sess *sess;
+ struct rtrs_clt_path *clt_path;
int ret;
- sess = container_of(kobj, struct rtrs_clt_sess, kobj);
+ clt_path = container_of(kobj, struct rtrs_clt_path, kobj);
if (!sysfs_streq(buf, "1")) {
- rtrs_err(sess->clt, "%s: unknown value: '%s'\n",
+ rtrs_err(clt_path->clt, "%s: unknown value: '%s'\n",
attr->attr.name, buf);
return -EINVAL;
}
- ret = rtrs_clt_remove_path_from_sysfs(sess, &attr->attr);
+ ret = rtrs_clt_remove_path_from_sysfs(clt_path, &attr->attr);
if (ret)
return ret;
@@ -333,11 +333,11 @@ static ssize_t rtrs_clt_hca_port_show(struct kobject *kobj,
struct kobj_attribute *attr,
char *page)
{
- struct rtrs_clt_sess *sess;
+ struct rtrs_clt_path *clt_path;
- sess = container_of(kobj, typeof(*sess), kobj);
+ clt_path = container_of(kobj, typeof(*clt_path), kobj);
- return sysfs_emit(page, "%u\n", sess->hca_port);
+ return sysfs_emit(page, "%u\n", clt_path->hca_port);
}
static struct kobj_attribute rtrs_clt_hca_port_attr =
@@ -347,11 +347,11 @@ static ssize_t rtrs_clt_hca_name_show(struct kobject *kobj,
struct kobj_attribute *attr,
char *page)
{
- struct rtrs_clt_sess *sess;
+ struct rtrs_clt_path *clt_path;
- sess = container_of(kobj, struct rtrs_clt_sess, kobj);
+ clt_path = container_of(kobj, struct rtrs_clt_path, kobj);
- return sysfs_emit(page, "%s\n", sess->hca_name);
+ return sysfs_emit(page, "%s\n", clt_path->hca_name);
}
static struct kobj_attribute rtrs_clt_hca_name_attr =
@@ -361,12 +361,12 @@ static ssize_t rtrs_clt_cur_latency_show(struct kobject *kobj,
struct kobj_attribute *attr,
char *page)
{
- struct rtrs_clt_sess *sess;
+ struct rtrs_clt_path *clt_path;
- sess = container_of(kobj, struct rtrs_clt_sess, kobj);
+ clt_path = container_of(kobj, struct rtrs_clt_path, kobj);
return sysfs_emit(page, "%lld ns\n",
- ktime_to_ns(sess->s.hb_cur_latency));
+ ktime_to_ns(clt_path->s.hb_cur_latency));
}
static struct kobj_attribute rtrs_clt_cur_latency_attr =
@@ -376,11 +376,11 @@ static ssize_t rtrs_clt_src_addr_show(struct kobject *kobj,
struct kobj_attribute *attr,
char *page)
{
- struct rtrs_clt_sess *sess;
+ struct rtrs_clt_path *clt_path;
int len;
- sess = container_of(kobj, struct rtrs_clt_sess, kobj);
- len = sockaddr_to_str((struct sockaddr *)&sess->s.src_addr, page,
+ clt_path = container_of(kobj, struct rtrs_clt_path, kobj);
+ len = sockaddr_to_str((struct sockaddr *)&clt_path->s.src_addr, page,
PAGE_SIZE);
len += sysfs_emit_at(page, len, "\n");
return len;
@@ -393,11 +393,11 @@ static ssize_t rtrs_clt_dst_addr_show(struct kobject *kobj,
struct kobj_attribute *attr,
char *page)
{
- struct rtrs_clt_sess *sess;
+ struct rtrs_clt_path *clt_path;
int len;
- sess = container_of(kobj, struct rtrs_clt_sess, kobj);
- len = sockaddr_to_str((struct sockaddr *)&sess->s.dst_addr, page,
+ clt_path = container_of(kobj, struct rtrs_clt_path, kobj);
+ len = sockaddr_to_str((struct sockaddr *)&clt_path->s.dst_addr, page,
PAGE_SIZE);
len += sysfs_emit_at(page, len, "\n");
return len;
@@ -406,7 +406,7 @@ static ssize_t rtrs_clt_dst_addr_show(struct kobject *kobj,
static struct kobj_attribute rtrs_clt_dst_addr_attr =
__ATTR(dst_addr, 0444, rtrs_clt_dst_addr_show, NULL);
-static struct attribute *rtrs_clt_sess_attrs[] = {
+static struct attribute *rtrs_clt_path_attrs[] = {
&rtrs_clt_hca_name_attr.attr,
&rtrs_clt_hca_port_attr.attr,
&rtrs_clt_src_addr_attr.attr,
@@ -419,42 +419,43 @@ static struct attribute *rtrs_clt_sess_attrs[] = {
NULL,
};
-static const struct attribute_group rtrs_clt_sess_attr_group = {
- .attrs = rtrs_clt_sess_attrs,
+static const struct attribute_group rtrs_clt_path_attr_group = {
+ .attrs = rtrs_clt_path_attrs,
};
-int rtrs_clt_create_sess_files(struct rtrs_clt_sess *sess)
+int rtrs_clt_create_path_files(struct rtrs_clt_path *clt_path)
{
- struct rtrs_clt *clt = sess->clt;
+ struct rtrs_clt *clt = clt_path->clt;
char str[NAME_MAX];
int err;
struct rtrs_addr path = {
- .src = &sess->s.src_addr,
- .dst = &sess->s.dst_addr,
+ .src = &clt_path->s.src_addr,
+ .dst = &clt_path->s.dst_addr,
};
rtrs_addr_to_str(&path, str, sizeof(str));
- err = kobject_init_and_add(&sess->kobj, &ktype_sess, clt->kobj_paths,
+ err = kobject_init_and_add(&clt_path->kobj, &ktype_sess,
+ clt->kobj_paths,
"%s", str);
if (err) {
pr_err("kobject_init_and_add: %d\n", err);
- kobject_put(&sess->kobj);
+ kobject_put(&clt_path->kobj);
return err;
}
- err = sysfs_create_group(&sess->kobj, &rtrs_clt_sess_attr_group);
+ err = sysfs_create_group(&clt_path->kobj, &rtrs_clt_path_attr_group);
if (err) {
pr_err("sysfs_create_group(): %d\n", err);
goto put_kobj;
}
- err = kobject_init_and_add(&sess->stats->kobj_stats, &ktype_stats,
- &sess->kobj, "stats");
+ err = kobject_init_and_add(&clt_path->stats->kobj_stats, &ktype_stats,
+ &clt_path->kobj, "stats");
if (err) {
pr_err("kobject_init_and_add: %d\n", err);
- kobject_put(&sess->stats->kobj_stats);
+ kobject_put(&clt_path->stats->kobj_stats);
goto remove_group;
}
- err = sysfs_create_group(&sess->stats->kobj_stats,
+ err = sysfs_create_group(&clt_path->stats->kobj_stats,
&rtrs_clt_stats_attr_group);
if (err) {
pr_err("failed to create stats sysfs group, err: %d\n", err);
@@ -464,25 +465,25 @@ int rtrs_clt_create_sess_files(struct rtrs_clt_sess *sess)
return 0;
put_kobj_stats:
- kobject_del(&sess->stats->kobj_stats);
- kobject_put(&sess->stats->kobj_stats);
+ kobject_del(&clt_path->stats->kobj_stats);
+ kobject_put(&clt_path->stats->kobj_stats);
remove_group:
- sysfs_remove_group(&sess->kobj, &rtrs_clt_sess_attr_group);
+ sysfs_remove_group(&clt_path->kobj, &rtrs_clt_path_attr_group);
put_kobj:
- kobject_del(&sess->kobj);
- kobject_put(&sess->kobj);
+ kobject_del(&clt_path->kobj);
+ kobject_put(&clt_path->kobj);
return err;
}
-void rtrs_clt_destroy_sess_files(struct rtrs_clt_sess *sess,
+void rtrs_clt_destroy_path_files(struct rtrs_clt_path *clt_path,
const struct attribute *sysfs_self)
{
- kobject_del(&sess->stats->kobj_stats);
- kobject_put(&sess->stats->kobj_stats);
+ kobject_del(&clt_path->stats->kobj_stats);
+ kobject_put(&clt_path->stats->kobj_stats);
if (sysfs_self)
- sysfs_remove_file_self(&sess->kobj, sysfs_self);
- kobject_del(&sess->kobj);
+ sysfs_remove_file_self(&clt_path->kobj, sysfs_self);
+ kobject_del(&clt_path->kobj);
}
static struct attribute *rtrs_clt_attrs[] = {
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt.c b/drivers/infiniband/ulp/rtrs/rtrs-clt.c
index e767692ec221..72b1fed365d1 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-clt.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-clt.c
@@ -48,12 +48,12 @@ static struct class *rtrs_clt_dev_class;
static inline bool rtrs_clt_is_connected(const struct rtrs_clt *clt)
{
- struct rtrs_clt_sess *sess;
+ struct rtrs_clt_path *clt_path;
bool connected = false;
rcu_read_lock();
- list_for_each_entry_rcu(sess, &clt->paths_list, s.entry)
- connected |= READ_ONCE(sess->state) == RTRS_CLT_CONNECTED;
+ list_for_each_entry_rcu(clt_path, &clt->paths_list, s.entry)
+ connected |= READ_ONCE(clt_path->state) == RTRS_CLT_CONNECTED;
rcu_read_unlock();
return connected;
@@ -163,29 +163,29 @@ EXPORT_SYMBOL(rtrs_clt_put_permit);
/**
* rtrs_permit_to_clt_con() - returns RDMA connection pointer by the permit
- * @sess: client session pointer
+ * @clt_path: client path pointer
* @permit: permit for the allocation of the RDMA buffer
* Note:
* IO connection starts from 1.
* 0 connection is for user messages.
*/
static
-struct rtrs_clt_con *rtrs_permit_to_clt_con(struct rtrs_clt_sess *sess,
+struct rtrs_clt_con *rtrs_permit_to_clt_con(struct rtrs_clt_path *clt_path,
struct rtrs_permit *permit)
{
int id = 0;
if (permit->con_type == RTRS_IO_CON)
- id = (permit->cpu_id % (sess->s.irq_con_num - 1)) + 1;
+ id = (permit->cpu_id % (clt_path->s.irq_con_num - 1)) + 1;
- return to_clt_con(sess->s.con[id]);
+ return to_clt_con(clt_path->s.con[id]);
}
/**
* rtrs_clt_change_state() - change the session state through session state
* machine.
*
- * @sess: client session to change the state of.
+ * @clt_path: client path to change the state of.
* @new_state: state to change to.
*
* returns true if sess's state is changed to new state, otherwise return false.
@@ -193,15 +193,15 @@ struct rtrs_clt_con *rtrs_permit_to_clt_con(struct rtrs_clt_sess *sess,
* Locks:
* state_wq lock must be hold.
*/
-static bool rtrs_clt_change_state(struct rtrs_clt_sess *sess,
+static bool rtrs_clt_change_state(struct rtrs_clt_path *clt_path,
enum rtrs_clt_state new_state)
{
enum rtrs_clt_state old_state;
bool changed = false;
- lockdep_assert_held(&sess->state_wq.lock);
+ lockdep_assert_held(&clt_path->state_wq.lock);
- old_state = sess->state;
+ old_state = clt_path->state;
switch (new_state) {
case RTRS_CLT_CONNECTING:
switch (old_state) {
@@ -275,42 +275,42 @@ static bool rtrs_clt_change_state(struct rtrs_clt_sess *sess,
break;
}
if (changed) {
- sess->state = new_state;
- wake_up_locked(&sess->state_wq);
+ clt_path->state = new_state;
+ wake_up_locked(&clt_path->state_wq);
}
return changed;
}
-static bool rtrs_clt_change_state_from_to(struct rtrs_clt_sess *sess,
+static bool rtrs_clt_change_state_from_to(struct rtrs_clt_path *clt_path,
enum rtrs_clt_state old_state,
enum rtrs_clt_state new_state)
{
bool changed = false;
- spin_lock_irq(&sess->state_wq.lock);
- if (sess->state == old_state)
- changed = rtrs_clt_change_state(sess, new_state);
- spin_unlock_irq(&sess->state_wq.lock);
+ spin_lock_irq(&clt_path->state_wq.lock);
+ if (clt_path->state == old_state)
+ changed = rtrs_clt_change_state(clt_path, new_state);
+ spin_unlock_irq(&clt_path->state_wq.lock);
return changed;
}
static void rtrs_rdma_error_recovery(struct rtrs_clt_con *con)
{
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
+ struct rtrs_clt_path *clt_path = to_clt_path(con->c.path);
- if (rtrs_clt_change_state_from_to(sess,
+ if (rtrs_clt_change_state_from_to(clt_path,
RTRS_CLT_CONNECTED,
RTRS_CLT_RECONNECTING)) {
- struct rtrs_clt *clt = sess->clt;
+ struct rtrs_clt *clt = clt_path->clt;
unsigned int delay_ms;
/*
* Normal scenario, reconnect if we were successfully connected
*/
delay_ms = clt->reconnect_delay_sec * 1000;
- queue_delayed_work(rtrs_wq, &sess->reconnect_dwork,
+ queue_delayed_work(rtrs_wq, &clt_path->reconnect_dwork,
msecs_to_jiffies(delay_ms +
prandom_u32() % RTRS_RECONNECT_SEED));
} else {
@@ -319,7 +319,7 @@ static void rtrs_rdma_error_recovery(struct rtrs_clt_con *con)
* so notify waiter with error state, waiter is responsible
* for cleaning the rest and reconnect if needed.
*/
- rtrs_clt_change_state_from_to(sess,
+ rtrs_clt_change_state_from_to(clt_path,
RTRS_CLT_CONNECTING,
RTRS_CLT_CONNECTING_ERR);
}
@@ -380,14 +380,14 @@ static void complete_rdma_req(struct rtrs_clt_io_req *req, int errno,
bool notify, bool can_wait)
{
struct rtrs_clt_con *con = req->con;
- struct rtrs_clt_sess *sess;
+ struct rtrs_clt_path *clt_path;
int err;
if (WARN_ON(!req->in_use))
return;
if (WARN_ON(!req->con))
return;
- sess = to_clt_sess(con->c.path);
+ clt_path = to_clt_path(con->c.path);
if (req->sg_cnt) {
if (req->dir == DMA_FROM_DEVICE && req->need_inv) {
@@ -433,21 +433,21 @@ static void complete_rdma_req(struct rtrs_clt_io_req *req, int errno,
if (!refcount_dec_and_test(&req->ref))
return;
}
- ib_dma_unmap_sg(sess->s.dev->ib_dev, req->sglist,
+ ib_dma_unmap_sg(clt_path->s.dev->ib_dev, req->sglist,
req->sg_cnt, req->dir);
}
if (!refcount_dec_and_test(&req->ref))
return;
if (req->mp_policy == MP_POLICY_MIN_INFLIGHT)
- atomic_dec(&sess->stats->inflight);
+ atomic_dec(&clt_path->stats->inflight);
req->in_use = false;
req->con = NULL;
if (errno) {
rtrs_err_rl(con->c.path, "IO request failed: error=%d path=%s [%s:%u] notify=%d\n",
- errno, kobject_name(&sess->kobj), sess->hca_name,
- sess->hca_port, notify);
+ errno, kobject_name(&clt_path->kobj), clt_path->hca_name,
+ clt_path->hca_port, notify);
}
if (notify)
@@ -459,7 +459,7 @@ static int rtrs_post_send_rdma(struct rtrs_clt_con *con,
struct rtrs_rbuf *rbuf, u32 off,
u32 imm, struct ib_send_wr *wr)
{
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
+ struct rtrs_clt_path *clt_path = to_clt_path(con->c.path);
enum ib_send_flags flags;
struct ib_sge sge;
@@ -472,16 +472,17 @@ static int rtrs_post_send_rdma(struct rtrs_clt_con *con,
/* user data and user message in the first list element */
sge.addr = req->iu->dma_addr;
sge.length = req->sg_size;
- sge.lkey = sess->s.dev->ib_pd->local_dma_lkey;
+ sge.lkey = clt_path->s.dev->ib_pd->local_dma_lkey;
/*
* From time to time we have to post signalled sends,
* or send queue will fill up and only QP reset can help.
*/
- flags = atomic_inc_return(&con->c.wr_cnt) % sess->s.signal_interval ?
+ flags = atomic_inc_return(&con->c.wr_cnt) % clt_path->s.signal_interval ?
0 : IB_SEND_SIGNALED;
- ib_dma_sync_single_for_device(sess->s.dev->ib_dev, req->iu->dma_addr,
+ ib_dma_sync_single_for_device(clt_path->s.dev->ib_dev,
+ req->iu->dma_addr,
req->sg_size, DMA_TO_DEVICE);
return rtrs_iu_post_rdma_write_imm(&con->c, req->iu, &sge, 1,
@@ -489,15 +490,15 @@ static int rtrs_post_send_rdma(struct rtrs_clt_con *con,
imm, flags, wr, NULL);
}
-static void process_io_rsp(struct rtrs_clt_sess *sess, u32 msg_id,
+static void process_io_rsp(struct rtrs_clt_path *clt_path, u32 msg_id,
s16 errno, bool w_inval)
{
struct rtrs_clt_io_req *req;
- if (WARN_ON(msg_id >= sess->queue_depth))
+ if (WARN_ON(msg_id >= clt_path->queue_depth))
return;
- req = &sess->reqs[msg_id];
+ req = &clt_path->reqs[msg_id];
/* Drop need_inv if server responded with send with invalidation */
req->need_inv &= !w_inval;
complete_rdma_req(req, errno, true, false);
@@ -507,9 +508,9 @@ static void rtrs_clt_recv_done(struct rtrs_clt_con *con, struct ib_wc *wc)
{
struct rtrs_iu *iu;
int err;
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
+ struct rtrs_clt_path *clt_path = to_clt_path(con->c.path);
- WARN_ON((sess->flags & RTRS_MSG_NEW_RKEY_F) == 0);
+ WARN_ON((clt_path->flags & RTRS_MSG_NEW_RKEY_F) == 0);
iu = container_of(wc->wr_cqe, struct rtrs_iu,
cqe);
err = rtrs_iu_post_recv(&con->c, iu);
@@ -521,7 +522,7 @@ static void rtrs_clt_recv_done(struct rtrs_clt_con *con, struct ib_wc *wc)
static void rtrs_clt_rkey_rsp_done(struct rtrs_clt_con *con, struct ib_wc *wc)
{
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
+ struct rtrs_clt_path *clt_path = to_clt_path(con->c.path);
struct rtrs_msg_rkey_rsp *msg;
u32 imm_type, imm_payload;
bool w_inval = false;
@@ -529,7 +530,7 @@ static void rtrs_clt_rkey_rsp_done(struct rtrs_clt_con *con, struct ib_wc *wc)
u32 buf_id;
int err;
- WARN_ON((sess->flags & RTRS_MSG_NEW_RKEY_F) == 0);
+ WARN_ON((clt_path->flags & RTRS_MSG_NEW_RKEY_F) == 0);
iu = container_of(wc->wr_cqe, struct rtrs_iu, cqe);
@@ -538,16 +539,17 @@ static void rtrs_clt_rkey_rsp_done(struct rtrs_clt_con *con, struct ib_wc *wc)
wc->byte_len);
goto out;
}
- ib_dma_sync_single_for_cpu(sess->s.dev->ib_dev, iu->dma_addr,
+ ib_dma_sync_single_for_cpu(clt_path->s.dev->ib_dev, iu->dma_addr,
iu->size, DMA_FROM_DEVICE);
msg = iu->buf;
if (le16_to_cpu(msg->type) != RTRS_MSG_RKEY_RSP) {
- rtrs_err(sess->clt, "rkey response is malformed: type %d\n",
+ rtrs_err(clt_path->clt,
+ "rkey response is malformed: type %d\n",
le16_to_cpu(msg->type));
goto out;
}
buf_id = le16_to_cpu(msg->buf_id);
- if (WARN_ON(buf_id >= sess->queue_depth))
+ if (WARN_ON(buf_id >= clt_path->queue_depth))
goto out;
rtrs_from_imm(be32_to_cpu(wc->ex.imm_data), &imm_type, &imm_payload);
@@ -560,10 +562,10 @@ static void rtrs_clt_rkey_rsp_done(struct rtrs_clt_con *con, struct ib_wc *wc)
if (WARN_ON(buf_id != msg_id))
goto out;
- sess->rbufs[buf_id].rkey = le32_to_cpu(msg->rkey);
- process_io_rsp(sess, msg_id, err, w_inval);
+ clt_path->rbufs[buf_id].rkey = le32_to_cpu(msg->rkey);
+ process_io_rsp(clt_path, msg_id, err, w_inval);
}
- ib_dma_sync_single_for_device(sess->s.dev->ib_dev, iu->dma_addr,
+ ib_dma_sync_single_for_device(clt_path->s.dev->ib_dev, iu->dma_addr,
iu->size, DMA_FROM_DEVICE);
return rtrs_clt_recv_done(con, wc);
out:
@@ -600,14 +602,14 @@ static int rtrs_post_recv_empty_x2(struct rtrs_con *con, struct ib_cqe *cqe)
static void rtrs_clt_rdma_done(struct ib_cq *cq, struct ib_wc *wc)
{
struct rtrs_clt_con *con = to_clt_con(wc->qp->qp_context);
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
+ struct rtrs_clt_path *clt_path = to_clt_path(con->c.path);
u32 imm_type, imm_payload;
bool w_inval = false;
int err;
if (wc->status != IB_WC_SUCCESS) {
if (wc->status != IB_WC_WR_FLUSH_ERR) {
- rtrs_err(sess->clt, "RDMA failed: %s\n",
+ rtrs_err(clt_path->clt, "RDMA failed: %s\n",
ib_wc_status_msg(wc->status));
rtrs_rdma_error_recovery(con);
}
@@ -632,18 +634,18 @@ static void rtrs_clt_rdma_done(struct ib_cq *cq, struct ib_wc *wc)
w_inval = (imm_type == RTRS_IO_RSP_W_INV_IMM);
rtrs_from_io_rsp_imm(imm_payload, &msg_id, &err);
- process_io_rsp(sess, msg_id, err, w_inval);
+ process_io_rsp(clt_path, msg_id, err, w_inval);
} else if (imm_type == RTRS_HB_MSG_IMM) {
WARN_ON(con->c.cid);
- rtrs_send_hb_ack(&sess->s);
- if (sess->flags & RTRS_MSG_NEW_RKEY_F)
+ rtrs_send_hb_ack(&clt_path->s);
+ if (clt_path->flags & RTRS_MSG_NEW_RKEY_F)
return rtrs_clt_recv_done(con, wc);
} else if (imm_type == RTRS_HB_ACK_IMM) {
WARN_ON(con->c.cid);
- sess->s.hb_missed_cnt = 0;
- sess->s.hb_cur_latency =
- ktime_sub(ktime_get(), sess->s.hb_last_sent);
- if (sess->flags & RTRS_MSG_NEW_RKEY_F)
+ clt_path->s.hb_missed_cnt = 0;
+ clt_path->s.hb_cur_latency =
+ ktime_sub(ktime_get(), clt_path->s.hb_last_sent);
+ if (clt_path->flags & RTRS_MSG_NEW_RKEY_F)
return rtrs_clt_recv_done(con, wc);
} else {
rtrs_wrn(con->c.path, "Unknown IMM type %u\n",
@@ -670,7 +672,7 @@ static void rtrs_clt_rdma_done(struct ib_cq *cq, struct ib_wc *wc)
WARN_ON(!(wc->wc_flags & IB_WC_WITH_INVALIDATE ||
wc->wc_flags & IB_WC_WITH_IMM));
WARN_ON(wc->wr_cqe->done != rtrs_clt_rdma_done);
- if (sess->flags & RTRS_MSG_NEW_RKEY_F) {
+ if (clt_path->flags & RTRS_MSG_NEW_RKEY_F) {
if (wc->wc_flags & IB_WC_WITH_INVALIDATE)
return rtrs_clt_recv_done(con, wc);
@@ -685,7 +687,7 @@ static void rtrs_clt_rdma_done(struct ib_cq *cq, struct ib_wc *wc)
break;
default:
- rtrs_wrn(sess->clt, "Unexpected WC type: %d\n", wc->opcode);
+ rtrs_wrn(clt_path->clt, "Unexpected WC type: %d\n", wc->opcode);
return;
}
}
@@ -693,10 +695,10 @@ static void rtrs_clt_rdma_done(struct ib_cq *cq, struct ib_wc *wc)
static int post_recv_io(struct rtrs_clt_con *con, size_t q_size)
{
int err, i;
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
+ struct rtrs_clt_path *clt_path = to_clt_path(con->c.path);
for (i = 0; i < q_size; i++) {
- if (sess->flags & RTRS_MSG_NEW_RKEY_F) {
+ if (clt_path->flags & RTRS_MSG_NEW_RKEY_F) {
struct rtrs_iu *iu = &con->rsp_ius[i];
err = rtrs_iu_post_recv(&con->c, iu);
@@ -710,16 +712,16 @@ static int post_recv_io(struct rtrs_clt_con *con, size_t q_size)
return 0;
}
-static int post_recv_sess(struct rtrs_clt_sess *sess)
+static int post_recv_path(struct rtrs_clt_path *clt_path)
{
size_t q_size = 0;
int err, cid;
- for (cid = 0; cid < sess->s.con_num; cid++) {
+ for (cid = 0; cid < clt_path->s.con_num; cid++) {
if (cid == 0)
q_size = SERVICE_CON_QUEUE_DEPTH;
else
- q_size = sess->queue_depth;
+ q_size = clt_path->queue_depth;
/*
* x2 for RDMA read responses + FR key invalidations,
@@ -727,9 +729,10 @@ static int post_recv_sess(struct rtrs_clt_sess *sess)
*/
q_size *= 2;
- err = post_recv_io(to_clt_con(sess->s.con[cid]), q_size);
+ err = post_recv_io(to_clt_con(clt_path->s.con[cid]), q_size);
if (err) {
- rtrs_err(sess->clt, "post_recv_io(), err: %d\n", err);
+ rtrs_err(clt_path->clt, "post_recv_io(), err: %d\n",
+ err);
return err;
}
}
@@ -741,7 +744,7 @@ struct path_it {
int i;
struct list_head skip_list;
struct rtrs_clt *clt;
- struct rtrs_clt_sess *(*next_path)(struct path_it *it);
+ struct rtrs_clt_path *(*next_path)(struct path_it *it);
};
/**
@@ -773,10 +776,10 @@ struct path_it {
* Locks:
* rcu_read_lock() must be hold.
*/
-static struct rtrs_clt_sess *get_next_path_rr(struct path_it *it)
+static struct rtrs_clt_path *get_next_path_rr(struct path_it *it)
{
- struct rtrs_clt_sess __rcu **ppcpu_path;
- struct rtrs_clt_sess *path;
+ struct rtrs_clt_path __rcu **ppcpu_path;
+ struct rtrs_clt_path *path;
struct rtrs_clt *clt;
clt = it->clt;
@@ -811,26 +814,26 @@ static struct rtrs_clt_sess *get_next_path_rr(struct path_it *it)
* Locks:
* rcu_read_lock() must be hold.
*/
-static struct rtrs_clt_sess *get_next_path_min_inflight(struct path_it *it)
+static struct rtrs_clt_path *get_next_path_min_inflight(struct path_it *it)
{
- struct rtrs_clt_sess *min_path = NULL;
+ struct rtrs_clt_path *min_path = NULL;
struct rtrs_clt *clt = it->clt;
- struct rtrs_clt_sess *sess;
+ struct rtrs_clt_path *clt_path;
int min_inflight = INT_MAX;
int inflight;
- list_for_each_entry_rcu(sess, &clt->paths_list, s.entry) {
- if (READ_ONCE(sess->state) != RTRS_CLT_CONNECTED)
+ list_for_each_entry_rcu(clt_path, &clt->paths_list, s.entry) {
+ if (READ_ONCE(clt_path->state) != RTRS_CLT_CONNECTED)
continue;
- if (!list_empty(raw_cpu_ptr(sess->mp_skip_entry)))
+ if (!list_empty(raw_cpu_ptr(clt_path->mp_skip_entry)))
continue;
- inflight = atomic_read(&sess->stats->inflight);
+ inflight = atomic_read(&clt_path->stats->inflight);
if (inflight < min_inflight) {
min_inflight = inflight;
- min_path = sess;
+ min_path = clt_path;
}
}
@@ -862,26 +865,26 @@ static struct rtrs_clt_sess *get_next_path_min_inflight(struct path_it *it)
* Therefore the caller MUST check the returned
* path is NULL and trigger the IO error.
*/
-static struct rtrs_clt_sess *get_next_path_min_latency(struct path_it *it)
+static struct rtrs_clt_path *get_next_path_min_latency(struct path_it *it)
{
- struct rtrs_clt_sess *min_path = NULL;
+ struct rtrs_clt_path *min_path = NULL;
struct rtrs_clt *clt = it->clt;
- struct rtrs_clt_sess *sess;
+ struct rtrs_clt_path *clt_path;
ktime_t min_latency = KTIME_MAX;
ktime_t latency;
- list_for_each_entry_rcu(sess, &clt->paths_list, s.entry) {
- if (READ_ONCE(sess->state) != RTRS_CLT_CONNECTED)
+ list_for_each_entry_rcu(clt_path, &clt->paths_list, s.entry) {
+ if (READ_ONCE(clt_path->state) != RTRS_CLT_CONNECTED)
continue;
- if (!list_empty(raw_cpu_ptr(sess->mp_skip_entry)))
+ if (!list_empty(raw_cpu_ptr(clt_path->mp_skip_entry)))
continue;
- latency = sess->s.hb_cur_latency;
+ latency = clt_path->s.hb_cur_latency;
if (latency < min_latency) {
min_latency = latency;
- min_path = sess;
+ min_path = clt_path;
}
}
@@ -928,7 +931,7 @@ static inline void path_it_deinit(struct path_it *it)
* the corresponding buffer of rtrs_iu (req->iu->buf), which later on will
* also hold the control message of rtrs.
* @req: an io request holding information about IO.
- * @sess: client session
+ * @clt_path: client path
* @conf: conformation callback function to notify upper layer.
* @permit: permit for allocation of RDMA remote buffer
* @priv: private pointer
@@ -940,7 +943,7 @@ static inline void path_it_deinit(struct path_it *it)
* @dir: direction of the IO.
*/
static void rtrs_clt_init_req(struct rtrs_clt_io_req *req,
- struct rtrs_clt_sess *sess,
+ struct rtrs_clt_path *clt_path,
void (*conf)(void *priv, int errno),
struct rtrs_permit *permit, void *priv,
const struct kvec *vec, size_t usr_len,
@@ -958,13 +961,13 @@ static void rtrs_clt_init_req(struct rtrs_clt_io_req *req,
req->sg_cnt = sg_cnt;
req->priv = priv;
req->dir = dir;
- req->con = rtrs_permit_to_clt_con(sess, permit);
+ req->con = rtrs_permit_to_clt_con(clt_path, permit);
req->conf = conf;
req->need_inv = false;
req->need_inv_comp = false;
req->inv_errno = 0;
refcount_set(&req->ref, 1);
- req->mp_policy = sess->clt->mp_policy;
+ req->mp_policy = clt_path->clt->mp_policy;
iov_iter_kvec(&iter, READ, vec, 1, usr_len);
len = _copy_from_iter(req->iu->buf, usr_len, &iter);
@@ -974,7 +977,7 @@ static void rtrs_clt_init_req(struct rtrs_clt_io_req *req,
}
static struct rtrs_clt_io_req *
-rtrs_clt_get_req(struct rtrs_clt_sess *sess,
+rtrs_clt_get_req(struct rtrs_clt_path *clt_path,
void (*conf)(void *priv, int errno),
struct rtrs_permit *permit, void *priv,
const struct kvec *vec, size_t usr_len,
@@ -983,14 +986,14 @@ rtrs_clt_get_req(struct rtrs_clt_sess *sess,
{
struct rtrs_clt_io_req *req;
- req = &sess->reqs[permit->mem_id];
- rtrs_clt_init_req(req, sess, conf, permit, priv, vec, usr_len,
+ req = &clt_path->reqs[permit->mem_id];
+ rtrs_clt_init_req(req, clt_path, conf, permit, priv, vec, usr_len,
sg, sg_cnt, data_len, dir);
return req;
}
static struct rtrs_clt_io_req *
-rtrs_clt_get_copy_req(struct rtrs_clt_sess *alive_sess,
+rtrs_clt_get_copy_req(struct rtrs_clt_path *alive_path,
struct rtrs_clt_io_req *fail_req)
{
struct rtrs_clt_io_req *req;
@@ -999,8 +1002,8 @@ rtrs_clt_get_copy_req(struct rtrs_clt_sess *alive_sess,
.iov_len = fail_req->usr_len
};
- req = &alive_sess->reqs[fail_req->permit->mem_id];
- rtrs_clt_init_req(req, alive_sess, fail_req->conf, fail_req->permit,
+ req = &alive_path->reqs[fail_req->permit->mem_id];
+ rtrs_clt_init_req(req, alive_path, fail_req->conf, fail_req->permit,
fail_req->priv, &vec, fail_req->usr_len,
fail_req->sglist, fail_req->sg_cnt,
fail_req->data_len, fail_req->dir);
@@ -1013,7 +1016,7 @@ static int rtrs_post_rdma_write_sg(struct rtrs_clt_con *con,
u32 size, u32 imm, struct ib_send_wr *wr,
struct ib_send_wr *tail)
{
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
+ struct rtrs_clt_path *clt_path = to_clt_path(con->c.path);
struct ib_sge *sge = req->sge;
enum ib_send_flags flags;
struct scatterlist *sg;
@@ -1033,22 +1036,23 @@ static int rtrs_post_rdma_write_sg(struct rtrs_clt_con *con,
for_each_sg(req->sglist, sg, req->sg_cnt, i) {
sge[i].addr = sg_dma_address(sg);
sge[i].length = sg_dma_len(sg);
- sge[i].lkey = sess->s.dev->ib_pd->local_dma_lkey;
+ sge[i].lkey = clt_path->s.dev->ib_pd->local_dma_lkey;
}
num_sge = 1 + req->sg_cnt;
}
sge[i].addr = req->iu->dma_addr;
sge[i].length = size;
- sge[i].lkey = sess->s.dev->ib_pd->local_dma_lkey;
+ sge[i].lkey = clt_path->s.dev->ib_pd->local_dma_lkey;
/*
* From time to time we have to post signalled sends,
* or send queue will fill up and only QP reset can help.
*/
- flags = atomic_inc_return(&con->c.wr_cnt) % sess->s.signal_interval ?
+ flags = atomic_inc_return(&con->c.wr_cnt) % clt_path->s.signal_interval ?
0 : IB_SEND_SIGNALED;
- ib_dma_sync_single_for_device(sess->s.dev->ib_dev, req->iu->dma_addr,
+ ib_dma_sync_single_for_device(clt_path->s.dev->ib_dev,
+ req->iu->dma_addr,
size, DMA_TO_DEVICE);
return rtrs_iu_post_rdma_write_imm(&con->c, req->iu, sge, num_sge,
@@ -1075,7 +1079,7 @@ static int rtrs_clt_write_req(struct rtrs_clt_io_req *req)
{
struct rtrs_clt_con *con = req->con;
struct rtrs_path *s = con->c.path;
- struct rtrs_clt_sess *sess = to_clt_sess(s);
+ struct rtrs_clt_path *clt_path = to_clt_path(s);
struct rtrs_msg_rdma_write *msg;
struct rtrs_rbuf *rbuf;
@@ -1088,13 +1092,13 @@ static int rtrs_clt_write_req(struct rtrs_clt_io_req *req)
const size_t tsize = sizeof(*msg) + req->data_len + req->usr_len;
- if (tsize > sess->chunk_size) {
+ if (tsize > clt_path->chunk_size) {
rtrs_wrn(s, "Write request failed, size too big %zu > %d\n",
- tsize, sess->chunk_size);
+ tsize, clt_path->chunk_size);
return -EMSGSIZE;
}
if (req->sg_cnt) {
- count = ib_dma_map_sg(sess->s.dev->ib_dev, req->sglist,
+ count = ib_dma_map_sg(clt_path->s.dev->ib_dev, req->sglist,
req->sg_cnt, req->dir);
if (!count) {
rtrs_wrn(s, "Write request failed, map failed\n");
@@ -1111,7 +1115,7 @@ static int rtrs_clt_write_req(struct rtrs_clt_io_req *req)
imm = rtrs_to_io_req_imm(imm);
buf_id = req->permit->mem_id;
req->sg_size = tsize;
- rbuf = &sess->rbufs[buf_id];
+ rbuf = &clt_path->rbufs[buf_id];
if (count) {
ret = rtrs_map_sg_fr(req, count);
@@ -1119,7 +1123,7 @@ static int rtrs_clt_write_req(struct rtrs_clt_io_req *req)
rtrs_err_rl(s,
"Write request failed, failed to map fast reg. data, err: %d\n",
ret);
- ib_dma_unmap_sg(sess->s.dev->ib_dev, req->sglist,
+ ib_dma_unmap_sg(clt_path->s.dev->ib_dev, req->sglist,
req->sg_cnt, req->dir);
return ret;
}
@@ -1153,12 +1157,12 @@ static int rtrs_clt_write_req(struct rtrs_clt_io_req *req)
if (ret) {
rtrs_err_rl(s,
"Write request failed: error=%d path=%s [%s:%u]\n",
- ret, kobject_name(&sess->kobj), sess->hca_name,
- sess->hca_port);
+ ret, kobject_name(&clt_path->kobj), clt_path->hca_name,
+ clt_path->hca_port);
if (req->mp_policy == MP_POLICY_MIN_INFLIGHT)
- atomic_dec(&sess->stats->inflight);
+ atomic_dec(&clt_path->stats->inflight);
if (req->sg_cnt)
- ib_dma_unmap_sg(sess->s.dev->ib_dev, req->sglist,
+ ib_dma_unmap_sg(clt_path->s.dev->ib_dev, req->sglist,
req->sg_cnt, req->dir);
}
@@ -1169,9 +1173,9 @@ static int rtrs_clt_read_req(struct rtrs_clt_io_req *req)
{
struct rtrs_clt_con *con = req->con;
struct rtrs_path *s = con->c.path;
- struct rtrs_clt_sess *sess = to_clt_sess(s);
+ struct rtrs_clt_path *clt_path = to_clt_path(s);
struct rtrs_msg_rdma_read *msg;
- struct rtrs_ib_dev *dev = sess->s.dev;
+ struct rtrs_ib_dev *dev = clt_path->s.dev;
struct ib_reg_wr rwr;
struct ib_send_wr *wr = NULL;
@@ -1181,10 +1185,10 @@ static int rtrs_clt_read_req(struct rtrs_clt_io_req *req)
const size_t tsize = sizeof(*msg) + req->data_len + req->usr_len;
- if (tsize > sess->chunk_size) {
+ if (tsize > clt_path->chunk_size) {
rtrs_wrn(s,
"Read request failed, message size is %zu, bigger than CHUNK_SIZE %d\n",
- tsize, sess->chunk_size);
+ tsize, clt_path->chunk_size);
return -EMSGSIZE;
}
@@ -1254,15 +1258,15 @@ static int rtrs_clt_read_req(struct rtrs_clt_io_req *req)
*/
rtrs_clt_update_all_stats(req, READ);
- ret = rtrs_post_send_rdma(req->con, req, &sess->rbufs[buf_id],
+ ret = rtrs_post_send_rdma(req->con, req, &clt_path->rbufs[buf_id],
req->data_len, imm, wr);
if (ret) {
rtrs_err_rl(s,
"Read request failed: error=%d path=%s [%s:%u]\n",
- ret, kobject_name(&sess->kobj), sess->hca_name,
- sess->hca_port);
+ ret, kobject_name(&clt_path->kobj), clt_path->hca_name,
+ clt_path->hca_port);
if (req->mp_policy == MP_POLICY_MIN_INFLIGHT)
- atomic_dec(&sess->stats->inflight);
+ atomic_dec(&clt_path->stats->inflight);
req->need_inv = false;
if (req->sg_cnt)
ib_dma_unmap_sg(dev->ib_dev, req->sglist,
@@ -1280,18 +1284,18 @@ static int rtrs_clt_read_req(struct rtrs_clt_io_req *req)
static int rtrs_clt_failover_req(struct rtrs_clt *clt,
struct rtrs_clt_io_req *fail_req)
{
- struct rtrs_clt_sess *alive_sess;
+ struct rtrs_clt_path *alive_path;
struct rtrs_clt_io_req *req;
int err = -ECONNABORTED;
struct path_it it;
rcu_read_lock();
for (path_it_init(&it, clt);
- (alive_sess = it.next_path(&it)) && it.i < it.clt->paths_num;
+ (alive_path = it.next_path(&it)) && it.i < it.clt->paths_num;
it.i++) {
- if (READ_ONCE(alive_sess->state) != RTRS_CLT_CONNECTED)
+ if (READ_ONCE(alive_path->state) != RTRS_CLT_CONNECTED)
continue;
- req = rtrs_clt_get_copy_req(alive_sess, fail_req);
+ req = rtrs_clt_get_copy_req(alive_path, fail_req);
if (req->dir == DMA_TO_DEVICE)
err = rtrs_clt_write_req(req);
else
@@ -1301,7 +1305,7 @@ static int rtrs_clt_failover_req(struct rtrs_clt *clt,
continue;
}
/* Success path */
- rtrs_clt_inc_failover_cnt(alive_sess->stats);
+ rtrs_clt_inc_failover_cnt(alive_path->stats);
break;
}
path_it_deinit(&it);
@@ -1310,16 +1314,16 @@ static int rtrs_clt_failover_req(struct rtrs_clt *clt,
return err;
}
-static void fail_all_outstanding_reqs(struct rtrs_clt_sess *sess)
+static void fail_all_outstanding_reqs(struct rtrs_clt_path *clt_path)
{
- struct rtrs_clt *clt = sess->clt;
+ struct rtrs_clt *clt = clt_path->clt;
struct rtrs_clt_io_req *req;
int i, err;
- if (!sess->reqs)
+ if (!clt_path->reqs)
return;
- for (i = 0; i < sess->queue_depth; ++i) {
- req = &sess->reqs[i];
+ for (i = 0; i < clt_path->queue_depth; ++i) {
+ req = &clt_path->reqs[i];
if (!req->in_use)
continue;
@@ -1337,38 +1341,39 @@ static void fail_all_outstanding_reqs(struct rtrs_clt_sess *sess)
}
}
-static void free_sess_reqs(struct rtrs_clt_sess *sess)
+static void free_path_reqs(struct rtrs_clt_path *clt_path)
{
struct rtrs_clt_io_req *req;
int i;
- if (!sess->reqs)
+ if (!clt_path->reqs)
return;
- for (i = 0; i < sess->queue_depth; ++i) {
- req = &sess->reqs[i];
+ for (i = 0; i < clt_path->queue_depth; ++i) {
+ req = &clt_path->reqs[i];
if (req->mr)
ib_dereg_mr(req->mr);
kfree(req->sge);
- rtrs_iu_free(req->iu, sess->s.dev->ib_dev, 1);
+ rtrs_iu_free(req->iu, clt_path->s.dev->ib_dev, 1);
}
- kfree(sess->reqs);
- sess->reqs = NULL;
+ kfree(clt_path->reqs);
+ clt_path->reqs = NULL;
}
-static int alloc_sess_reqs(struct rtrs_clt_sess *sess)
+static int alloc_path_reqs(struct rtrs_clt_path *clt_path)
{
struct rtrs_clt_io_req *req;
int i, err = -ENOMEM;
- sess->reqs = kcalloc(sess->queue_depth, sizeof(*sess->reqs),
- GFP_KERNEL);
- if (!sess->reqs)
+ clt_path->reqs = kcalloc(clt_path->queue_depth,
+ sizeof(*clt_path->reqs),
+ GFP_KERNEL);
+ if (!clt_path->reqs)
return -ENOMEM;
- for (i = 0; i < sess->queue_depth; ++i) {
- req = &sess->reqs[i];
- req->iu = rtrs_iu_alloc(1, sess->max_hdr_size, GFP_KERNEL,
- sess->s.dev->ib_dev,
+ for (i = 0; i < clt_path->queue_depth; ++i) {
+ req = &clt_path->reqs[i];
+ req->iu = rtrs_iu_alloc(1, clt_path->max_hdr_size, GFP_KERNEL,
+ clt_path->s.dev->ib_dev,
DMA_TO_DEVICE,
rtrs_clt_rdma_done);
if (!req->iu)
@@ -1378,13 +1383,14 @@ static int alloc_sess_reqs(struct rtrs_clt_sess *sess)
if (!req->sge)
goto out;
- req->mr = ib_alloc_mr(sess->s.dev->ib_pd, IB_MR_TYPE_MEM_REG,
- sess->max_pages_per_mr);
+ req->mr = ib_alloc_mr(clt_path->s.dev->ib_pd,
+ IB_MR_TYPE_MEM_REG,
+ clt_path->max_pages_per_mr);
if (IS_ERR(req->mr)) {
err = PTR_ERR(req->mr);
req->mr = NULL;
pr_err("Failed to alloc sess->max_pages_per_mr %d\n",
- sess->max_pages_per_mr);
+ clt_path->max_pages_per_mr);
goto out;
}
@@ -1394,7 +1400,7 @@ static int alloc_sess_reqs(struct rtrs_clt_sess *sess)
return 0;
out:
- free_sess_reqs(sess);
+ free_path_reqs(clt_path);
return err;
}
@@ -1447,13 +1453,13 @@ static void free_permits(struct rtrs_clt *clt)
clt->permits = NULL;
}
-static void query_fast_reg_mode(struct rtrs_clt_sess *sess)
+static void query_fast_reg_mode(struct rtrs_clt_path *clt_path)
{
struct ib_device *ib_dev;
u64 max_pages_per_mr;
int mr_page_shift;
- ib_dev = sess->s.dev->ib_dev;
+ ib_dev = clt_path->s.dev->ib_dev;
/*
* Use the smallest page size supported by the HCA, down to a
@@ -1463,24 +1469,24 @@ static void query_fast_reg_mode(struct rtrs_clt_sess *sess)
mr_page_shift = max(12, ffs(ib_dev->attrs.page_size_cap) - 1);
max_pages_per_mr = ib_dev->attrs.max_mr_size;
do_div(max_pages_per_mr, (1ull << mr_page_shift));
- sess->max_pages_per_mr =
- min3(sess->max_pages_per_mr, (u32)max_pages_per_mr,
+ clt_path->max_pages_per_mr =
+ min3(clt_path->max_pages_per_mr, (u32)max_pages_per_mr,
ib_dev->attrs.max_fast_reg_page_list_len);
- sess->clt->max_segments =
- min(sess->max_pages_per_mr, sess->clt->max_segments);
+ clt_path->clt->max_segments =
+ min(clt_path->max_pages_per_mr, clt_path->clt->max_segments);
}
-static bool rtrs_clt_change_state_get_old(struct rtrs_clt_sess *sess,
+static bool rtrs_clt_change_state_get_old(struct rtrs_clt_path *clt_path,
enum rtrs_clt_state new_state,
enum rtrs_clt_state *old_state)
{
bool changed;
- spin_lock_irq(&sess->state_wq.lock);
+ spin_lock_irq(&clt_path->state_wq.lock);
if (old_state)
- *old_state = sess->state;
- changed = rtrs_clt_change_state(sess, new_state);
- spin_unlock_irq(&sess->state_wq.lock);
+ *old_state = clt_path->state;
+ changed = rtrs_clt_change_state(clt_path, new_state);
+ spin_unlock_irq(&clt_path->state_wq.lock);
return changed;
}
@@ -1492,9 +1498,9 @@ static void rtrs_clt_hb_err_handler(struct rtrs_con *c)
rtrs_rdma_error_recovery(con);
}
-static void rtrs_clt_init_hb(struct rtrs_clt_sess *sess)
+static void rtrs_clt_init_hb(struct rtrs_clt_path *clt_path)
{
- rtrs_init_hb(&sess->s, &io_comp_cqe,
+ rtrs_init_hb(&clt_path->s, &io_comp_cqe,
RTRS_HB_INTERVAL_MS,
RTRS_HB_MISSED_MAX,
rtrs_clt_hb_err_handler,
@@ -1504,17 +1510,17 @@ static void rtrs_clt_init_hb(struct rtrs_clt_sess *sess)
static void rtrs_clt_reconnect_work(struct work_struct *work);
static void rtrs_clt_close_work(struct work_struct *work);
-static struct rtrs_clt_sess *alloc_sess(struct rtrs_clt *clt,
+static struct rtrs_clt_path *alloc_path(struct rtrs_clt *clt,
const struct rtrs_addr *path,
size_t con_num, u32 nr_poll_queues)
{
- struct rtrs_clt_sess *sess;
+ struct rtrs_clt_path *clt_path;
int err = -ENOMEM;
int cpu;
size_t total_con;
- sess = kzalloc(sizeof(*sess), GFP_KERNEL);
- if (!sess)
+ clt_path = kzalloc(sizeof(*clt_path), GFP_KERNEL);
+ if (!clt_path)
goto err;
/*
@@ -1522,20 +1528,21 @@ static struct rtrs_clt_sess *alloc_sess(struct rtrs_clt *clt,
* +1: Extra connection for user messages
*/
total_con = con_num + nr_poll_queues + 1;
- sess->s.con = kcalloc(total_con, sizeof(*sess->s.con), GFP_KERNEL);
- if (!sess->s.con)
- goto err_free_sess;
+ clt_path->s.con = kcalloc(total_con, sizeof(*clt_path->s.con),
+ GFP_KERNEL);
+ if (!clt_path->s.con)
+ goto err_free_path;
- sess->s.con_num = total_con;
- sess->s.irq_con_num = con_num + 1;
+ clt_path->s.con_num = total_con;
+ clt_path->s.irq_con_num = con_num + 1;
- sess->stats = kzalloc(sizeof(*sess->stats), GFP_KERNEL);
- if (!sess->stats)
+ clt_path->stats = kzalloc(sizeof(*clt_path->stats), GFP_KERNEL);
+ if (!clt_path->stats)
goto err_free_con;
- mutex_init(&sess->init_mutex);
- uuid_gen(&sess->s.uuid);
- memcpy(&sess->s.dst_addr, path->dst,
+ mutex_init(&clt_path->init_mutex);
+ uuid_gen(&clt_path->s.uuid);
+ memcpy(&clt_path->s.dst_addr, path->dst,
rdma_addr_size((struct sockaddr *)path->dst));
/*
@@ -1544,53 +1551,54 @@ static struct rtrs_clt_sess *alloc_sess(struct rtrs_clt *clt,
* the sess->src_addr will contain only zeros, which is then fine.
*/
if (path->src)
- memcpy(&sess->s.src_addr, path->src,
+ memcpy(&clt_path->s.src_addr, path->src,
rdma_addr_size((struct sockaddr *)path->src));
- strscpy(sess->s.sessname, clt->sessname, sizeof(sess->s.sessname));
- sess->clt = clt;
- sess->max_pages_per_mr = RTRS_MAX_SEGMENTS;
- init_waitqueue_head(&sess->state_wq);
- sess->state = RTRS_CLT_CONNECTING;
- atomic_set(&sess->connected_cnt, 0);
- INIT_WORK(&sess->close_work, rtrs_clt_close_work);
- INIT_DELAYED_WORK(&sess->reconnect_dwork, rtrs_clt_reconnect_work);
- rtrs_clt_init_hb(sess);
-
- sess->mp_skip_entry = alloc_percpu(typeof(*sess->mp_skip_entry));
- if (!sess->mp_skip_entry)
+ strscpy(clt_path->s.sessname, clt->sessname,
+ sizeof(clt_path->s.sessname));
+ clt_path->clt = clt;
+ clt_path->max_pages_per_mr = RTRS_MAX_SEGMENTS;
+ init_waitqueue_head(&clt_path->state_wq);
+ clt_path->state = RTRS_CLT_CONNECTING;
+ atomic_set(&clt_path->connected_cnt, 0);
+ INIT_WORK(&clt_path->close_work, rtrs_clt_close_work);
+ INIT_DELAYED_WORK(&clt_path->reconnect_dwork, rtrs_clt_reconnect_work);
+ rtrs_clt_init_hb(clt_path);
+
+ clt_path->mp_skip_entry = alloc_percpu(typeof(*clt_path->mp_skip_entry));
+ if (!clt_path->mp_skip_entry)
goto err_free_stats;
for_each_possible_cpu(cpu)
- INIT_LIST_HEAD(per_cpu_ptr(sess->mp_skip_entry, cpu));
+ INIT_LIST_HEAD(per_cpu_ptr(clt_path->mp_skip_entry, cpu));
- err = rtrs_clt_init_stats(sess->stats);
+ err = rtrs_clt_init_stats(clt_path->stats);
if (err)
goto err_free_percpu;
- return sess;
+ return clt_path;
err_free_percpu:
- free_percpu(sess->mp_skip_entry);
+ free_percpu(clt_path->mp_skip_entry);
err_free_stats:
- kfree(sess->stats);
+ kfree(clt_path->stats);
err_free_con:
- kfree(sess->s.con);
-err_free_sess:
- kfree(sess);
+ kfree(clt_path->s.con);
+err_free_path:
+ kfree(clt_path);
err:
return ERR_PTR(err);
}
-void free_sess(struct rtrs_clt_sess *sess)
+void free_path(struct rtrs_clt_path *clt_path)
{
- free_percpu(sess->mp_skip_entry);
- mutex_destroy(&sess->init_mutex);
- kfree(sess->s.con);
- kfree(sess->rbufs);
- kfree(sess);
+ free_percpu(clt_path->mp_skip_entry);
+ mutex_destroy(&clt_path->init_mutex);
+ kfree(clt_path->s.con);
+ kfree(clt_path->rbufs);
+ kfree(clt_path);
}
-static int create_con(struct rtrs_clt_sess *sess, unsigned int cid)
+static int create_con(struct rtrs_clt_path *clt_path, unsigned int cid)
{
struct rtrs_clt_con *con;
@@ -1601,28 +1609,28 @@ static int create_con(struct rtrs_clt_sess *sess, unsigned int cid)
/* Map first two connections to the first CPU */
con->cpu = (cid ? cid - 1 : 0) % nr_cpu_ids;
con->c.cid = cid;
- con->c.path = &sess->s;
+ con->c.path = &clt_path->s;
/* Align with srv, init as 1 */
atomic_set(&con->c.wr_cnt, 1);
mutex_init(&con->con_mutex);
- sess->s.con[cid] = &con->c;
+ clt_path->s.con[cid] = &con->c;
return 0;
}
static void destroy_con(struct rtrs_clt_con *con)
{
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
+ struct rtrs_clt_path *clt_path = to_clt_path(con->c.path);
- sess->s.con[con->c.cid] = NULL;
+ clt_path->s.con[con->c.cid] = NULL;
mutex_destroy(&con->con_mutex);
kfree(con);
}
static int create_con_cq_qp(struct rtrs_clt_con *con)
{
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
+ struct rtrs_clt_path *clt_path = to_clt_path(con->c.path);
u32 max_send_wr, max_recv_wr, cq_num, max_send_sge, wr_limit;
int err, cq_vector;
struct rtrs_msg_rkey_rsp *rsp;
@@ -1631,7 +1639,7 @@ static int create_con_cq_qp(struct rtrs_clt_con *con)
if (con->c.cid == 0) {
max_send_sge = 1;
/* We must be the first here */
- if (WARN_ON(sess->s.dev))
+ if (WARN_ON(clt_path->s.dev))
return -EINVAL;
/*
@@ -1639,16 +1647,16 @@ static int create_con_cq_qp(struct rtrs_clt_con *con)
* Be careful not to close user connection before ib dev
* is gracefully put.
*/
- sess->s.dev = rtrs_ib_dev_find_or_add(con->c.cm_id->device,
+ clt_path->s.dev = rtrs_ib_dev_find_or_add(con->c.cm_id->device,
&dev_pd);
- if (!sess->s.dev) {
- rtrs_wrn(sess->clt,
+ if (!clt_path->s.dev) {
+ rtrs_wrn(clt_path->clt,
"rtrs_ib_dev_find_get_or_add(): no memory\n");
return -ENOMEM;
}
- sess->s.dev_ref = 1;
- query_fast_reg_mode(sess);
- wr_limit = sess->s.dev->ib_dev->attrs.max_qp_wr;
+ clt_path->s.dev_ref = 1;
+ query_fast_reg_mode(clt_path);
+ wr_limit = clt_path->s.dev->ib_dev->attrs.max_qp_wr;
/*
* Two (request + registration) completion for send
* Two for recv if always_invalidate is set on server
@@ -1665,27 +1673,28 @@ static int create_con_cq_qp(struct rtrs_clt_con *con)
* This is always true if user connection (cid == 0) is
* established first.
*/
- if (WARN_ON(!sess->s.dev))
+ if (WARN_ON(!clt_path->s.dev))
return -EINVAL;
- if (WARN_ON(!sess->queue_depth))
+ if (WARN_ON(!clt_path->queue_depth))
return -EINVAL;
- wr_limit = sess->s.dev->ib_dev->attrs.max_qp_wr;
+ wr_limit = clt_path->s.dev->ib_dev->attrs.max_qp_wr;
/* Shared between connections */
- sess->s.dev_ref++;
+ clt_path->s.dev_ref++;
max_send_wr = min_t(int, wr_limit,
/* QD * (REQ + RSP + FR REGS or INVS) + drain */
- sess->queue_depth * 3 + 1);
+ clt_path->queue_depth * 3 + 1);
max_recv_wr = min_t(int, wr_limit,
- sess->queue_depth * 3 + 1);
+ clt_path->queue_depth * 3 + 1);
max_send_sge = 2;
}
atomic_set(&con->c.sq_wr_avail, max_send_wr);
cq_num = max_send_wr + max_recv_wr;
/* alloc iu to recv new rkey reply when server reports flags set */
- if (sess->flags & RTRS_MSG_NEW_RKEY_F || con->c.cid == 0) {
+ if (clt_path->flags & RTRS_MSG_NEW_RKEY_F || con->c.cid == 0) {
con->rsp_ius = rtrs_iu_alloc(cq_num, sizeof(*rsp),
- GFP_KERNEL, sess->s.dev->ib_dev,
+ GFP_KERNEL,
+ clt_path->s.dev->ib_dev,
DMA_FROM_DEVICE,
rtrs_clt_rdma_done);
if (!con->rsp_ius)
@@ -1693,13 +1702,13 @@ static int create_con_cq_qp(struct rtrs_clt_con *con)
con->queue_num = cq_num;
}
cq_num = max_send_wr + max_recv_wr;
- cq_vector = con->cpu % sess->s.dev->ib_dev->num_comp_vectors;
- if (con->c.cid >= sess->s.irq_con_num)
- err = rtrs_cq_qp_create(&sess->s, &con->c, max_send_sge,
+ cq_vector = con->cpu % clt_path->s.dev->ib_dev->num_comp_vectors;
+ if (con->c.cid >= clt_path->s.irq_con_num)
+ err = rtrs_cq_qp_create(&clt_path->s, &con->c, max_send_sge,
cq_vector, cq_num, max_send_wr,
max_recv_wr, IB_POLL_DIRECT);
else
- err = rtrs_cq_qp_create(&sess->s, &con->c, max_send_sge,
+ err = rtrs_cq_qp_create(&clt_path->s, &con->c, max_send_sge,
cq_vector, cq_num, max_send_wr,
max_recv_wr, IB_POLL_SOFTIRQ);
/*
@@ -1711,7 +1720,7 @@ static int create_con_cq_qp(struct rtrs_clt_con *con)
static void destroy_con_cq_qp(struct rtrs_clt_con *con)
{
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
+ struct rtrs_clt_path *clt_path = to_clt_path(con->c.path);
/*
* Be careful here: destroy_con_cq_qp() can be called even
@@ -1720,13 +1729,14 @@ static void destroy_con_cq_qp(struct rtrs_clt_con *con)
lockdep_assert_held(&con->con_mutex);
rtrs_cq_qp_destroy(&con->c);
if (con->rsp_ius) {
- rtrs_iu_free(con->rsp_ius, sess->s.dev->ib_dev, con->queue_num);
+ rtrs_iu_free(con->rsp_ius, clt_path->s.dev->ib_dev,
+ con->queue_num);
con->rsp_ius = NULL;
con->queue_num = 0;
}
- if (sess->s.dev_ref && !--sess->s.dev_ref) {
- rtrs_ib_dev_put(sess->s.dev);
- sess->s.dev = NULL;
+ if (clt_path->s.dev_ref && !--clt_path->s.dev_ref) {
+ rtrs_ib_dev_put(clt_path->s.dev);
+ clt_path->s.dev = NULL;
}
}
@@ -1764,8 +1774,8 @@ static int rtrs_rdma_addr_resolved(struct rtrs_clt_con *con)
static int rtrs_rdma_route_resolved(struct rtrs_clt_con *con)
{
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
- struct rtrs_clt *clt = sess->clt;
+ struct rtrs_clt_path *clt_path = to_clt_path(con->c.path);
+ struct rtrs_clt *clt = clt_path->clt;
struct rtrs_msg_conn_req msg;
struct rdma_conn_param param;
@@ -1782,11 +1792,11 @@ static int rtrs_rdma_route_resolved(struct rtrs_clt_con *con)
.magic = cpu_to_le16(RTRS_MAGIC),
.version = cpu_to_le16(RTRS_PROTO_VER),
.cid = cpu_to_le16(con->c.cid),
- .cid_num = cpu_to_le16(sess->s.con_num),
- .recon_cnt = cpu_to_le16(sess->s.recon_cnt),
+ .cid_num = cpu_to_le16(clt_path->s.con_num),
+ .recon_cnt = cpu_to_le16(clt_path->s.recon_cnt),
};
- msg.first_conn = sess->for_new_clt ? FIRST_CONN : 0;
- uuid_copy(&msg.sess_uuid, &sess->s.uuid);
+ msg.first_conn = clt_path->for_new_clt ? FIRST_CONN : 0;
+ uuid_copy(&msg.sess_uuid, &clt_path->s.uuid);
uuid_copy(&msg.paths_uuid, &clt->paths_uuid);
err = rdma_connect_locked(con->c.cm_id, ¶m);
@@ -1799,8 +1809,8 @@ static int rtrs_rdma_route_resolved(struct rtrs_clt_con *con)
static int rtrs_rdma_conn_established(struct rtrs_clt_con *con,
struct rdma_cm_event *ev)
{
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
- struct rtrs_clt *clt = sess->clt;
+ struct rtrs_clt_path *clt_path = to_clt_path(con->c.path);
+ struct rtrs_clt *clt = clt_path->clt;
const struct rtrs_msg_conn_rsp *msg;
u16 version, queue_depth;
int errno;
@@ -1831,31 +1841,32 @@ static int rtrs_rdma_conn_established(struct rtrs_clt_con *con,
if (con->c.cid == 0) {
queue_depth = le16_to_cpu(msg->queue_depth);
- if (sess->queue_depth > 0 && queue_depth != sess->queue_depth) {
+ if (clt_path->queue_depth > 0 && queue_depth != clt_path->queue_depth) {
rtrs_err(clt, "Error: queue depth changed\n");
/*
* Stop any more reconnection attempts
*/
- sess->reconnect_attempts = -1;
+ clt_path->reconnect_attempts = -1;
rtrs_err(clt,
"Disabling auto-reconnect. Trigger a manual reconnect after issue is resolved\n");
return -ECONNRESET;
}
- if (!sess->rbufs) {
- sess->rbufs = kcalloc(queue_depth, sizeof(*sess->rbufs),
- GFP_KERNEL);
- if (!sess->rbufs)
+ if (!clt_path->rbufs) {
+ clt_path->rbufs = kcalloc(queue_depth,
+ sizeof(*clt_path->rbufs),
+ GFP_KERNEL);
+ if (!clt_path->rbufs)
return -ENOMEM;
}
- sess->queue_depth = queue_depth;
- sess->s.signal_interval = min_not_zero(queue_depth,
+ clt_path->queue_depth = queue_depth;
+ clt_path->s.signal_interval = min_not_zero(queue_depth,
(unsigned short) SERVICE_CON_QUEUE_DEPTH);
- sess->max_hdr_size = le32_to_cpu(msg->max_hdr_size);
- sess->max_io_size = le32_to_cpu(msg->max_io_size);
- sess->flags = le32_to_cpu(msg->flags);
- sess->chunk_size = sess->max_io_size + sess->max_hdr_size;
+ clt_path->max_hdr_size = le32_to_cpu(msg->max_hdr_size);
+ clt_path->max_io_size = le32_to_cpu(msg->max_io_size);
+ clt_path->flags = le32_to_cpu(msg->flags);
+ clt_path->chunk_size = clt_path->max_io_size + clt_path->max_hdr_size;
/*
* Global IO size is always a minimum.
@@ -1866,20 +1877,20 @@ static int rtrs_rdma_conn_established(struct rtrs_clt_con *con,
* connections in parallel, use lock.
*/
mutex_lock(&clt->paths_mutex);
- clt->queue_depth = sess->queue_depth;
- clt->max_io_size = min_not_zero(sess->max_io_size,
+ clt->queue_depth = clt_path->queue_depth;
+ clt->max_io_size = min_not_zero(clt_path->max_io_size,
clt->max_io_size);
mutex_unlock(&clt->paths_mutex);
/*
* Cache the hca_port and hca_name for sysfs
*/
- sess->hca_port = con->c.cm_id->port_num;
- scnprintf(sess->hca_name, sizeof(sess->hca_name),
- sess->s.dev->ib_dev->name);
- sess->s.src_addr = con->c.cm_id->route.addr.src_addr;
+ clt_path->hca_port = con->c.cm_id->port_num;
+ scnprintf(clt_path->hca_name, sizeof(clt_path->hca_name),
+ clt_path->s.dev->ib_dev->name);
+ clt_path->s.src_addr = con->c.cm_id->route.addr.src_addr;
/* set for_new_clt, to allow future reconnect on any path */
- sess->for_new_clt = 1;
+ clt_path->for_new_clt = 1;
}
return 0;
@@ -1887,9 +1898,9 @@ static int rtrs_rdma_conn_established(struct rtrs_clt_con *con,
static inline void flag_success_on_conn(struct rtrs_clt_con *con)
{
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
+ struct rtrs_clt_path *clt_path = to_clt_path(con->c.path);
- atomic_inc(&sess->connected_cnt);
+ atomic_inc(&clt_path->connected_cnt);
con->cm_err = 1;
}
@@ -1924,23 +1935,23 @@ static int rtrs_rdma_conn_rejected(struct rtrs_clt_con *con,
return -ECONNRESET;
}
-void rtrs_clt_close_conns(struct rtrs_clt_sess *sess, bool wait)
+void rtrs_clt_close_conns(struct rtrs_clt_path *clt_path, bool wait)
{
- if (rtrs_clt_change_state_get_old(sess, RTRS_CLT_CLOSING, NULL))
- queue_work(rtrs_wq, &sess->close_work);
+ if (rtrs_clt_change_state_get_old(clt_path, RTRS_CLT_CLOSING, NULL))
+ queue_work(rtrs_wq, &clt_path->close_work);
if (wait)
- flush_work(&sess->close_work);
+ flush_work(&clt_path->close_work);
}
static inline void flag_error_on_conn(struct rtrs_clt_con *con, int cm_err)
{
if (con->cm_err == 1) {
- struct rtrs_clt_sess *sess;
+ struct rtrs_clt_path *clt_path;
- sess = to_clt_sess(con->c.path);
- if (atomic_dec_and_test(&sess->connected_cnt))
+ clt_path = to_clt_path(con->c.path);
+ if (atomic_dec_and_test(&clt_path->connected_cnt))
- wake_up(&sess->state_wq);
+ wake_up(&clt_path->state_wq);
}
con->cm_err = cm_err;
}
@@ -1950,7 +1961,7 @@ static int rtrs_clt_rdma_cm_handler(struct rdma_cm_id *cm_id,
{
struct rtrs_clt_con *con = cm_id->context;
struct rtrs_path *s = con->c.path;
- struct rtrs_clt_sess *sess = to_clt_sess(s);
+ struct rtrs_clt_path *clt_path = to_clt_path(s);
int cm_err = 0;
switch (ev->event) {
@@ -1968,7 +1979,7 @@ static int rtrs_clt_rdma_cm_handler(struct rdma_cm_id *cm_id,
* i.e. wake up without state change, but we set cm_err.
*/
flag_success_on_conn(con);
- wake_up(&sess->state_wq);
+ wake_up(&clt_path->state_wq);
return 0;
}
break;
@@ -1997,7 +2008,7 @@ static int rtrs_clt_rdma_cm_handler(struct rdma_cm_id *cm_id,
/*
* Device removal is a special case. Queue close and return 0.
*/
- rtrs_clt_close_conns(sess, false);
+ rtrs_clt_close_conns(clt_path, false);
return 0;
default:
rtrs_err(s, "Unexpected RDMA CM error (CM event: %s, err: %d)\n",
@@ -2021,12 +2032,12 @@ static int rtrs_clt_rdma_cm_handler(struct rdma_cm_id *cm_id,
static int create_cm(struct rtrs_clt_con *con)
{
struct rtrs_path *s = con->c.path;
- struct rtrs_clt_sess *sess = to_clt_sess(s);
+ struct rtrs_clt_path *clt_path = to_clt_path(s);
struct rdma_cm_id *cm_id;
int err;
cm_id = rdma_create_id(&init_net, rtrs_clt_rdma_cm_handler, con,
- sess->s.dst_addr.ss_family == AF_IB ?
+ clt_path->s.dst_addr.ss_family == AF_IB ?
RDMA_PS_IB : RDMA_PS_TCP, IB_QPT_RC);
if (IS_ERR(cm_id)) {
err = PTR_ERR(cm_id);
@@ -2042,8 +2053,8 @@ static int create_cm(struct rtrs_clt_con *con)
rtrs_err(s, "Set address reuse failed, err: %d\n", err);
goto destroy_cm;
}
- err = rdma_resolve_addr(cm_id, (struct sockaddr *)&sess->s.src_addr,
- (struct sockaddr *)&sess->s.dst_addr,
+ err = rdma_resolve_addr(cm_id, (struct sockaddr *)&clt_path->s.src_addr,
+ (struct sockaddr *)&clt_path->s.dst_addr,
RTRS_CONNECT_TIMEOUT_MS);
if (err) {
rtrs_err(s, "Failed to resolve address, err: %d\n", err);
@@ -2055,8 +2066,8 @@ static int create_cm(struct rtrs_clt_con *con)
* or session state was really changed to error by device removal.
*/
err = wait_event_interruptible_timeout(
- sess->state_wq,
- con->cm_err || sess->state != RTRS_CLT_CONNECTING,
+ clt_path->state_wq,
+ con->cm_err || clt_path->state != RTRS_CLT_CONNECTING,
msecs_to_jiffies(RTRS_CONNECT_TIMEOUT_MS));
if (err == 0 || err == -ERESTARTSYS) {
if (err == 0)
@@ -2068,7 +2079,7 @@ static int create_cm(struct rtrs_clt_con *con)
err = con->cm_err;
goto errr;
}
- if (READ_ONCE(sess->state) != RTRS_CLT_CONNECTING) {
+ if (READ_ONCE(clt_path->state) != RTRS_CLT_CONNECTING) {
/* Device removal */
err = -ECONNABORTED;
goto errr;
@@ -2087,9 +2098,9 @@ static int create_cm(struct rtrs_clt_con *con)
return err;
}
-static void rtrs_clt_sess_up(struct rtrs_clt_sess *sess)
+static void rtrs_clt_path_up(struct rtrs_clt_path *clt_path)
{
- struct rtrs_clt *clt = sess->clt;
+ struct rtrs_clt *clt = clt_path->clt;
int up;
/*
@@ -2113,19 +2124,19 @@ static void rtrs_clt_sess_up(struct rtrs_clt_sess *sess)
mutex_unlock(&clt->paths_ev_mutex);
/* Mark session as established */
- sess->established = true;
- sess->reconnect_attempts = 0;
- sess->stats->reconnects.successful_cnt++;
+ clt_path->established = true;
+ clt_path->reconnect_attempts = 0;
+ clt_path->stats->reconnects.successful_cnt++;
}
-static void rtrs_clt_sess_down(struct rtrs_clt_sess *sess)
+static void rtrs_clt_path_down(struct rtrs_clt_path *clt_path)
{
- struct rtrs_clt *clt = sess->clt;
+ struct rtrs_clt *clt = clt_path->clt;
- if (!sess->established)
+ if (!clt_path->established)
return;
- sess->established = false;
+ clt_path->established = false;
mutex_lock(&clt->paths_ev_mutex);
WARN_ON(!clt->paths_up);
if (--clt->paths_up == 0)
@@ -2133,19 +2144,19 @@ static void rtrs_clt_sess_down(struct rtrs_clt_sess *sess)
mutex_unlock(&clt->paths_ev_mutex);
}
-static void rtrs_clt_stop_and_destroy_conns(struct rtrs_clt_sess *sess)
+static void rtrs_clt_stop_and_destroy_conns(struct rtrs_clt_path *clt_path)
{
struct rtrs_clt_con *con;
unsigned int cid;
- WARN_ON(READ_ONCE(sess->state) == RTRS_CLT_CONNECTED);
+ WARN_ON(READ_ONCE(clt_path->state) == RTRS_CLT_CONNECTED);
/*
* Possible race with rtrs_clt_open(), when DEVICE_REMOVAL comes
* exactly in between. Start destroying after it finishes.
*/
- mutex_lock(&sess->init_mutex);
- mutex_unlock(&sess->init_mutex);
+ mutex_lock(&clt_path->init_mutex);
+ mutex_unlock(&clt_path->init_mutex);
/*
* All IO paths must observe !CONNECTED state before we
@@ -2153,7 +2164,7 @@ static void rtrs_clt_stop_and_destroy_conns(struct rtrs_clt_sess *sess)
*/
synchronize_rcu();
- rtrs_stop_hb(&sess->s);
+ rtrs_stop_hb(&clt_path->s);
/*
* The order it utterly crucial: firstly disconnect and complete all
@@ -2162,15 +2173,15 @@ static void rtrs_clt_stop_and_destroy_conns(struct rtrs_clt_sess *sess)
* eventually notify upper layer about session disconnection.
*/
- for (cid = 0; cid < sess->s.con_num; cid++) {
- if (!sess->s.con[cid])
+ for (cid = 0; cid < clt_path->s.con_num; cid++) {
+ if (!clt_path->s.con[cid])
break;
- con = to_clt_con(sess->s.con[cid]);
+ con = to_clt_con(clt_path->s.con[cid]);
stop_cm(con);
}
- fail_all_outstanding_reqs(sess);
- free_sess_reqs(sess);
- rtrs_clt_sess_down(sess);
+ fail_all_outstanding_reqs(clt_path);
+ free_path_reqs(clt_path);
+ rtrs_clt_path_down(clt_path);
/*
* Wait for graceful shutdown, namely when peer side invokes
@@ -2180,13 +2191,14 @@ static void rtrs_clt_stop_and_destroy_conns(struct rtrs_clt_sess *sess)
* since CM does not fire anything. That is fine, we are not in
* hurry.
*/
- wait_event_timeout(sess->state_wq, !atomic_read(&sess->connected_cnt),
+ wait_event_timeout(clt_path->state_wq,
+ !atomic_read(&clt_path->connected_cnt),
msecs_to_jiffies(RTRS_CONNECT_TIMEOUT_MS));
- for (cid = 0; cid < sess->s.con_num; cid++) {
- if (!sess->s.con[cid])
+ for (cid = 0; cid < clt_path->s.con_num; cid++) {
+ if (!clt_path->s.con[cid])
break;
- con = to_clt_con(sess->s.con[cid]);
+ con = to_clt_con(clt_path->s.con[cid]);
mutex_lock(&con->con_mutex);
destroy_con_cq_qp(con);
mutex_unlock(&con->con_mutex);
@@ -2195,26 +2207,26 @@ static void rtrs_clt_stop_and_destroy_conns(struct rtrs_clt_sess *sess)
}
}
-static inline bool xchg_sessions(struct rtrs_clt_sess __rcu **rcu_ppcpu_path,
- struct rtrs_clt_sess *sess,
- struct rtrs_clt_sess *next)
+static inline bool xchg_sessions(struct rtrs_clt_path __rcu **rcu_ppcpu_path,
+ struct rtrs_clt_path *clt_path,
+ struct rtrs_clt_path *next)
{
- struct rtrs_clt_sess **ppcpu_path;
+ struct rtrs_clt_path **ppcpu_path;
/* Call cmpxchg() without sparse warnings */
ppcpu_path = (typeof(ppcpu_path))rcu_ppcpu_path;
- return sess == cmpxchg(ppcpu_path, sess, next);
+ return clt_path == cmpxchg(ppcpu_path, clt_path, next);
}
-static void rtrs_clt_remove_path_from_arr(struct rtrs_clt_sess *sess)
+static void rtrs_clt_remove_path_from_arr(struct rtrs_clt_path *clt_path)
{
- struct rtrs_clt *clt = sess->clt;
- struct rtrs_clt_sess *next;
+ struct rtrs_clt *clt = clt_path->clt;
+ struct rtrs_clt_path *next;
bool wait_for_grace = false;
int cpu;
mutex_lock(&clt->paths_mutex);
- list_del_rcu(&sess->s.entry);
+ list_del_rcu(&clt_path->s.entry);
/* Make sure everybody observes path removal. */
synchronize_rcu();
@@ -2255,7 +2267,7 @@ static void rtrs_clt_remove_path_from_arr(struct rtrs_clt_sess *sess)
* removed. If @sess is the last element, then @next is NULL.
*/
rcu_read_lock();
- next = list_next_or_null_rr_rcu(&clt->paths_list, &sess->s.entry,
+ next = list_next_or_null_rr_rcu(&clt->paths_list, &clt_path->s.entry,
typeof(*next), s.entry);
rcu_read_unlock();
@@ -2264,11 +2276,11 @@ static void rtrs_clt_remove_path_from_arr(struct rtrs_clt_sess *sess)
* removed, so change the pointer manually.
*/
for_each_possible_cpu(cpu) {
- struct rtrs_clt_sess __rcu **ppcpu_path;
+ struct rtrs_clt_path __rcu **ppcpu_path;
ppcpu_path = per_cpu_ptr(clt->pcpu_path, cpu);
if (rcu_dereference_protected(*ppcpu_path,
- lockdep_is_held(&clt->paths_mutex)) != sess)
+ lockdep_is_held(&clt->paths_mutex)) != clt_path)
/*
* synchronize_rcu() was called just after deleting
* entry from the list, thus IO code path cannot
@@ -2281,7 +2293,7 @@ static void rtrs_clt_remove_path_from_arr(struct rtrs_clt_sess *sess)
* We race with IO code path, which also changes pointer,
* thus we have to be careful not to overwrite it.
*/
- if (xchg_sessions(ppcpu_path, sess, next))
+ if (xchg_sessions(ppcpu_path, clt_path, next))
/*
* @ppcpu_path was successfully replaced with @next,
* that means that someone could also pick up the
@@ -2296,29 +2308,29 @@ static void rtrs_clt_remove_path_from_arr(struct rtrs_clt_sess *sess)
mutex_unlock(&clt->paths_mutex);
}
-static void rtrs_clt_add_path_to_arr(struct rtrs_clt_sess *sess)
+static void rtrs_clt_add_path_to_arr(struct rtrs_clt_path *clt_path)
{
- struct rtrs_clt *clt = sess->clt;
+ struct rtrs_clt *clt = clt_path->clt;
mutex_lock(&clt->paths_mutex);
clt->paths_num++;
- list_add_tail_rcu(&sess->s.entry, &clt->paths_list);
+ list_add_tail_rcu(&clt_path->s.entry, &clt->paths_list);
mutex_unlock(&clt->paths_mutex);
}
static void rtrs_clt_close_work(struct work_struct *work)
{
- struct rtrs_clt_sess *sess;
+ struct rtrs_clt_path *clt_path;
- sess = container_of(work, struct rtrs_clt_sess, close_work);
+ clt_path = container_of(work, struct rtrs_clt_path, close_work);
- cancel_delayed_work_sync(&sess->reconnect_dwork);
- rtrs_clt_stop_and_destroy_conns(sess);
- rtrs_clt_change_state_get_old(sess, RTRS_CLT_CLOSED, NULL);
+ cancel_delayed_work_sync(&clt_path->reconnect_dwork);
+ rtrs_clt_stop_and_destroy_conns(clt_path);
+ rtrs_clt_change_state_get_old(clt_path, RTRS_CLT_CLOSED, NULL);
}
-static int init_conns(struct rtrs_clt_sess *sess)
+static int init_conns(struct rtrs_clt_path *clt_path)
{
unsigned int cid;
int err;
@@ -2328,31 +2340,31 @@ static int init_conns(struct rtrs_clt_sess *sess)
* to avoid clashes with previous sessions not yet closed
* sessions on a server side.
*/
- sess->s.recon_cnt++;
+ clt_path->s.recon_cnt++;
/* Establish all RDMA connections */
- for (cid = 0; cid < sess->s.con_num; cid++) {
- err = create_con(sess, cid);
+ for (cid = 0; cid < clt_path->s.con_num; cid++) {
+ err = create_con(clt_path, cid);
if (err)
goto destroy;
- err = create_cm(to_clt_con(sess->s.con[cid]));
+ err = create_cm(to_clt_con(clt_path->s.con[cid]));
if (err) {
- destroy_con(to_clt_con(sess->s.con[cid]));
+ destroy_con(to_clt_con(clt_path->s.con[cid]));
goto destroy;
}
}
- err = alloc_sess_reqs(sess);
+ err = alloc_path_reqs(clt_path);
if (err)
goto destroy;
- rtrs_start_hb(&sess->s);
+ rtrs_start_hb(&clt_path->s);
return 0;
destroy:
while (cid--) {
- struct rtrs_clt_con *con = to_clt_con(sess->s.con[cid]);
+ struct rtrs_clt_con *con = to_clt_con(clt_path->s.con[cid]);
stop_cm(con);
@@ -2367,7 +2379,7 @@ static int init_conns(struct rtrs_clt_sess *sess)
* doing rdma_resolve_addr(), switch to CONNECTION_ERR state
* manually to keep reconnecting.
*/
- rtrs_clt_change_state_get_old(sess, RTRS_CLT_CONNECTING_ERR, NULL);
+ rtrs_clt_change_state_get_old(clt_path, RTRS_CLT_CONNECTING_ERR, NULL);
return err;
}
@@ -2375,31 +2387,32 @@ static int init_conns(struct rtrs_clt_sess *sess)
static void rtrs_clt_info_req_done(struct ib_cq *cq, struct ib_wc *wc)
{
struct rtrs_clt_con *con = to_clt_con(wc->qp->qp_context);
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
+ struct rtrs_clt_path *clt_path = to_clt_path(con->c.path);
struct rtrs_iu *iu;
iu = container_of(wc->wr_cqe, struct rtrs_iu, cqe);
- rtrs_iu_free(iu, sess->s.dev->ib_dev, 1);
+ rtrs_iu_free(iu, clt_path->s.dev->ib_dev, 1);
if (wc->status != IB_WC_SUCCESS) {
- rtrs_err(sess->clt, "Sess info request send failed: %s\n",
+ rtrs_err(clt_path->clt, "Sess info request send failed: %s\n",
ib_wc_status_msg(wc->status));
- rtrs_clt_change_state_get_old(sess, RTRS_CLT_CONNECTING_ERR, NULL);
+ rtrs_clt_change_state_get_old(clt_path, RTRS_CLT_CONNECTING_ERR, NULL);
return;
}
rtrs_clt_update_wc_stats(con);
}
-static int process_info_rsp(struct rtrs_clt_sess *sess,
+static int process_info_rsp(struct rtrs_clt_path *clt_path,
const struct rtrs_msg_info_rsp *msg)
{
unsigned int sg_cnt, total_len;
int i, sgi;
sg_cnt = le16_to_cpu(msg->sg_cnt);
- if (!sg_cnt || (sess->queue_depth % sg_cnt)) {
- rtrs_err(sess->clt, "Incorrect sg_cnt %d, is not multiple\n",
+ if (!sg_cnt || (clt_path->queue_depth % sg_cnt)) {
+ rtrs_err(clt_path->clt,
+ "Incorrect sg_cnt %d, is not multiple\n",
sg_cnt);
return -EINVAL;
}
@@ -2408,15 +2421,15 @@ static int process_info_rsp(struct rtrs_clt_sess *sess,
* Check if IB immediate data size is enough to hold the mem_id and
* the offset inside the memory chunk.
*/
- if ((ilog2(sg_cnt - 1) + 1) + (ilog2(sess->chunk_size - 1) + 1) >
+ if ((ilog2(sg_cnt - 1) + 1) + (ilog2(clt_path->chunk_size - 1) + 1) >
MAX_IMM_PAYL_BITS) {
- rtrs_err(sess->clt,
+ rtrs_err(clt_path->clt,
"RDMA immediate size (%db) not enough to encode %d buffers of size %dB\n",
- MAX_IMM_PAYL_BITS, sg_cnt, sess->chunk_size);
+ MAX_IMM_PAYL_BITS, sg_cnt, clt_path->chunk_size);
return -EINVAL;
}
total_len = 0;
- for (sgi = 0, i = 0; sgi < sg_cnt && i < sess->queue_depth; sgi++) {
+ for (sgi = 0, i = 0; sgi < sg_cnt && i < clt_path->queue_depth; sgi++) {
const struct rtrs_sg_desc *desc = &msg->desc[sgi];
u32 len, rkey;
u64 addr;
@@ -2427,26 +2440,28 @@ static int process_info_rsp(struct rtrs_clt_sess *sess,
total_len += len;
- if (!len || (len % sess->chunk_size)) {
- rtrs_err(sess->clt, "Incorrect [%d].len %d\n", sgi,
+ if (!len || (len % clt_path->chunk_size)) {
+ rtrs_err(clt_path->clt, "Incorrect [%d].len %d\n",
+ sgi,
len);
return -EINVAL;
}
- for ( ; len && i < sess->queue_depth; i++) {
- sess->rbufs[i].addr = addr;
- sess->rbufs[i].rkey = rkey;
+ for ( ; len && i < clt_path->queue_depth; i++) {
+ clt_path->rbufs[i].addr = addr;
+ clt_path->rbufs[i].rkey = rkey;
- len -= sess->chunk_size;
- addr += sess->chunk_size;
+ len -= clt_path->chunk_size;
+ addr += clt_path->chunk_size;
}
}
/* Sanity check */
- if (sgi != sg_cnt || i != sess->queue_depth) {
- rtrs_err(sess->clt, "Incorrect sg vector, not fully mapped\n");
+ if (sgi != sg_cnt || i != clt_path->queue_depth) {
+ rtrs_err(clt_path->clt,
+ "Incorrect sg vector, not fully mapped\n");
return -EINVAL;
}
- if (total_len != sess->chunk_size * sess->queue_depth) {
- rtrs_err(sess->clt, "Incorrect total_len %d\n", total_len);
+ if (total_len != clt_path->chunk_size * clt_path->queue_depth) {
+ rtrs_err(clt_path->clt, "Incorrect total_len %d\n", total_len);
return -EINVAL;
}
@@ -2456,7 +2471,7 @@ static int process_info_rsp(struct rtrs_clt_sess *sess,
static void rtrs_clt_info_rsp_done(struct ib_cq *cq, struct ib_wc *wc)
{
struct rtrs_clt_con *con = to_clt_con(wc->qp->qp_context);
- struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
+ struct rtrs_clt_path *clt_path = to_clt_path(con->c.path);
struct rtrs_msg_info_rsp *msg;
enum rtrs_clt_state state;
struct rtrs_iu *iu;
@@ -2468,37 +2483,37 @@ static void rtrs_clt_info_rsp_done(struct ib_cq *cq, struct ib_wc *wc)
WARN_ON(con->c.cid);
iu = container_of(wc->wr_cqe, struct rtrs_iu, cqe);
if (wc->status != IB_WC_SUCCESS) {
- rtrs_err(sess->clt, "Sess info response recv failed: %s\n",
+ rtrs_err(clt_path->clt, "Path info response recv failed: %s\n",
ib_wc_status_msg(wc->status));
goto out;
}
WARN_ON(wc->opcode != IB_WC_RECV);
if (wc->byte_len < sizeof(*msg)) {
- rtrs_err(sess->clt, "Sess info response is malformed: size %d\n",
+ rtrs_err(clt_path->clt, "Path info response is malformed: size %d\n",
wc->byte_len);
goto out;
}
- ib_dma_sync_single_for_cpu(sess->s.dev->ib_dev, iu->dma_addr,
+ ib_dma_sync_single_for_cpu(clt_path->s.dev->ib_dev, iu->dma_addr,
iu->size, DMA_FROM_DEVICE);
msg = iu->buf;
if (le16_to_cpu(msg->type) != RTRS_MSG_INFO_RSP) {
- rtrs_err(sess->clt, "Sess info response is malformed: type %d\n",
+ rtrs_err(clt_path->clt, "Path info response is malformed: type %d\n",
le16_to_cpu(msg->type));
goto out;
}
rx_sz = sizeof(*msg);
rx_sz += sizeof(msg->desc[0]) * le16_to_cpu(msg->sg_cnt);
if (wc->byte_len < rx_sz) {
- rtrs_err(sess->clt, "Sess info response is malformed: size %d\n",
+ rtrs_err(clt_path->clt, "Path info response is malformed: size %d\n",
wc->byte_len);
goto out;
}
- err = process_info_rsp(sess, msg);
+ err = process_info_rsp(clt_path, msg);
if (err)
goto out;
- err = post_recv_sess(sess);
+ err = post_recv_path(clt_path);
if (err)
goto out;
@@ -2506,25 +2521,25 @@ static void rtrs_clt_info_rsp_done(struct ib_cq *cq, struct ib_wc *wc)
out:
rtrs_clt_update_wc_stats(con);
- rtrs_iu_free(iu, sess->s.dev->ib_dev, 1);
- rtrs_clt_change_state_get_old(sess, state, NULL);
+ rtrs_iu_free(iu, clt_path->s.dev->ib_dev, 1);
+ rtrs_clt_change_state_get_old(clt_path, state, NULL);
}
-static int rtrs_send_sess_info(struct rtrs_clt_sess *sess)
+static int rtrs_send_path_info(struct rtrs_clt_path *clt_path)
{
- struct rtrs_clt_con *usr_con = to_clt_con(sess->s.con[0]);
+ struct rtrs_clt_con *usr_con = to_clt_con(clt_path->s.con[0]);
struct rtrs_msg_info_req *msg;
struct rtrs_iu *tx_iu, *rx_iu;
size_t rx_sz;
int err;
rx_sz = sizeof(struct rtrs_msg_info_rsp);
- rx_sz += sizeof(struct rtrs_sg_desc) * sess->queue_depth;
+ rx_sz += sizeof(struct rtrs_sg_desc) * clt_path->queue_depth;
tx_iu = rtrs_iu_alloc(1, sizeof(struct rtrs_msg_info_req), GFP_KERNEL,
- sess->s.dev->ib_dev, DMA_TO_DEVICE,
+ clt_path->s.dev->ib_dev, DMA_TO_DEVICE,
rtrs_clt_info_req_done);
- rx_iu = rtrs_iu_alloc(1, rx_sz, GFP_KERNEL, sess->s.dev->ib_dev,
+ rx_iu = rtrs_iu_alloc(1, rx_sz, GFP_KERNEL, clt_path->s.dev->ib_dev,
DMA_FROM_DEVICE, rtrs_clt_info_rsp_done);
if (!tx_iu || !rx_iu) {
err = -ENOMEM;
@@ -2533,33 +2548,34 @@ static int rtrs_send_sess_info(struct rtrs_clt_sess *sess)
/* Prepare for getting info response */
err = rtrs_iu_post_recv(&usr_con->c, rx_iu);
if (err) {
- rtrs_err(sess->clt, "rtrs_iu_post_recv(), err: %d\n", err);
+ rtrs_err(clt_path->clt, "rtrs_iu_post_recv(), err: %d\n", err);
goto out;
}
rx_iu = NULL;
msg = tx_iu->buf;
msg->type = cpu_to_le16(RTRS_MSG_INFO_REQ);
- memcpy(msg->sessname, sess->s.sessname, sizeof(msg->sessname));
+ memcpy(msg->sessname, clt_path->s.sessname, sizeof(msg->sessname));
- ib_dma_sync_single_for_device(sess->s.dev->ib_dev, tx_iu->dma_addr,
+ ib_dma_sync_single_for_device(clt_path->s.dev->ib_dev,
+ tx_iu->dma_addr,
tx_iu->size, DMA_TO_DEVICE);
/* Send info request */
err = rtrs_iu_post_send(&usr_con->c, tx_iu, sizeof(*msg), NULL);
if (err) {
- rtrs_err(sess->clt, "rtrs_iu_post_send(), err: %d\n", err);
+ rtrs_err(clt_path->clt, "rtrs_iu_post_send(), err: %d\n", err);
goto out;
}
tx_iu = NULL;
/* Wait for state change */
- wait_event_interruptible_timeout(sess->state_wq,
- sess->state != RTRS_CLT_CONNECTING,
+ wait_event_interruptible_timeout(clt_path->state_wq,
+ clt_path->state != RTRS_CLT_CONNECTING,
msecs_to_jiffies(
RTRS_CONNECT_TIMEOUT_MS));
- if (READ_ONCE(sess->state) != RTRS_CLT_CONNECTED) {
- if (READ_ONCE(sess->state) == RTRS_CLT_CONNECTING_ERR)
+ if (READ_ONCE(clt_path->state) != RTRS_CLT_CONNECTED) {
+ if (READ_ONCE(clt_path->state) == RTRS_CLT_CONNECTING_ERR)
err = -ECONNRESET;
else
err = -ETIMEDOUT;
@@ -2567,82 +2583,82 @@ static int rtrs_send_sess_info(struct rtrs_clt_sess *sess)
out:
if (tx_iu)
- rtrs_iu_free(tx_iu, sess->s.dev->ib_dev, 1);
+ rtrs_iu_free(tx_iu, clt_path->s.dev->ib_dev, 1);
if (rx_iu)
- rtrs_iu_free(rx_iu, sess->s.dev->ib_dev, 1);
+ rtrs_iu_free(rx_iu, clt_path->s.dev->ib_dev, 1);
if (err)
/* If we've never taken async path because of malloc problems */
- rtrs_clt_change_state_get_old(sess, RTRS_CLT_CONNECTING_ERR, NULL);
+ rtrs_clt_change_state_get_old(clt_path,
+ RTRS_CLT_CONNECTING_ERR, NULL);
return err;
}
/**
- * init_sess() - establishes all session connections and does handshake
- * @sess: client session.
+ * init_pathi() - establishes all path connections and does handshake
+ * @clt_path: client path.
* In case of error full close or reconnect procedure should be taken,
* because reconnect or close async works can be started.
*/
-static int init_sess(struct rtrs_clt_sess *sess)
+static int init_path(struct rtrs_clt_path *clt_path)
{
int err;
char str[NAME_MAX];
struct rtrs_addr path = {
- .src = &sess->s.src_addr,
- .dst = &sess->s.dst_addr,
+ .src = &clt_path->s.src_addr,
+ .dst = &clt_path->s.dst_addr,
};
rtrs_addr_to_str(&path, str, sizeof(str));
- mutex_lock(&sess->init_mutex);
- err = init_conns(sess);
+ mutex_lock(&clt_path->init_mutex);
+ err = init_conns(clt_path);
if (err) {
- rtrs_err(sess->clt,
+ rtrs_err(clt_path->clt,
"init_conns() failed: err=%d path=%s [%s:%u]\n", err,
- str, sess->hca_name, sess->hca_port);
+ str, clt_path->hca_name, clt_path->hca_port);
goto out;
}
- err = rtrs_send_sess_info(sess);
+ err = rtrs_send_path_info(clt_path);
if (err) {
- rtrs_err(
- sess->clt,
- "rtrs_send_sess_info() failed: err=%d path=%s [%s:%u]\n",
- err, str, sess->hca_name, sess->hca_port);
+ rtrs_err(clt_path->clt,
+ "rtrs_send_path_info() failed: err=%d path=%s [%s:%u]\n",
+ err, str, clt_path->hca_name, clt_path->hca_port);
goto out;
}
- rtrs_clt_sess_up(sess);
+ rtrs_clt_path_up(clt_path);
out:
- mutex_unlock(&sess->init_mutex);
+ mutex_unlock(&clt_path->init_mutex);
return err;
}
static void rtrs_clt_reconnect_work(struct work_struct *work)
{
- struct rtrs_clt_sess *sess;
+ struct rtrs_clt_path *clt_path;
struct rtrs_clt *clt;
unsigned int delay_ms;
int err;
- sess = container_of(to_delayed_work(work), struct rtrs_clt_sess,
- reconnect_dwork);
- clt = sess->clt;
+ clt_path = container_of(to_delayed_work(work), struct rtrs_clt_path,
+ reconnect_dwork);
+ clt = clt_path->clt;
- if (READ_ONCE(sess->state) != RTRS_CLT_RECONNECTING)
+ if (READ_ONCE(clt_path->state) != RTRS_CLT_RECONNECTING)
return;
- if (sess->reconnect_attempts >= clt->max_reconnect_attempts) {
+ if (clt_path->reconnect_attempts >= clt->max_reconnect_attempts) {
/* Close a session completely if max attempts is reached */
- rtrs_clt_close_conns(sess, false);
+ rtrs_clt_close_conns(clt_path, false);
return;
}
- sess->reconnect_attempts++;
+ clt_path->reconnect_attempts++;
/* Stop everything */
- rtrs_clt_stop_and_destroy_conns(sess);
+ rtrs_clt_stop_and_destroy_conns(clt_path);
msleep(RTRS_RECONNECT_BACKOFF);
- if (rtrs_clt_change_state_get_old(sess, RTRS_CLT_CONNECTING, NULL)) {
- err = init_sess(sess);
+ if (rtrs_clt_change_state_get_old(clt_path, RTRS_CLT_CONNECTING, NULL)) {
+ err = init_path(clt_path);
if (err)
goto reconnect_again;
}
@@ -2650,10 +2666,10 @@ static void rtrs_clt_reconnect_work(struct work_struct *work)
return;
reconnect_again:
- if (rtrs_clt_change_state_get_old(sess, RTRS_CLT_RECONNECTING, NULL)) {
- sess->stats->reconnects.fail_cnt++;
+ if (rtrs_clt_change_state_get_old(clt_path, RTRS_CLT_RECONNECTING, NULL)) {
+ clt_path->stats->reconnects.fail_cnt++;
delay_ms = clt->reconnect_delay_sec * 1000;
- queue_delayed_work(rtrs_wq, &sess->reconnect_dwork,
+ queue_delayed_work(rtrs_wq, &clt_path->reconnect_dwork,
msecs_to_jiffies(delay_ms +
prandom_u32() %
RTRS_RECONNECT_SEED));
@@ -2760,7 +2776,7 @@ static void free_clt(struct rtrs_clt *clt)
}
/**
- * rtrs_clt_open() - Open a session to an RTRS server
+ * rtrs_clt_open() - Open a path to an RTRS server
* @ops: holds the link event callback and the private pointer.
* @sessname: name of the session
* @paths: Paths to be established defined by their src and dst addresses
@@ -2778,23 +2794,23 @@ static void free_clt(struct rtrs_clt *clt)
* Return a valid pointer on success otherwise PTR_ERR.
*/
struct rtrs_clt *rtrs_clt_open(struct rtrs_clt_ops *ops,
- const char *sessname,
+ const char *pathname,
const struct rtrs_addr *paths,
size_t paths_num, u16 port,
size_t pdu_sz, u8 reconnect_delay_sec,
s16 max_reconnect_attempts, u32 nr_poll_queues)
{
- struct rtrs_clt_sess *sess, *tmp;
+ struct rtrs_clt_path *clt_path, *tmp;
struct rtrs_clt *clt;
int err, i;
- if (strchr(sessname, '/') || strchr(sessname, '.')) {
- pr_err("sessname cannot contain / and .\n");
+ if (strchr(pathname, '/') || strchr(pathname, '.')) {
+ pr_err("pathname cannot contain / and .\n");
err = -EINVAL;
goto out;
}
- clt = alloc_clt(sessname, paths_num, port, pdu_sz, ops->priv,
+ clt = alloc_clt(pathname, paths_num, port, pdu_sz, ops->priv,
ops->link_ev,
reconnect_delay_sec,
max_reconnect_attempts);
@@ -2803,49 +2819,49 @@ struct rtrs_clt *rtrs_clt_open(struct rtrs_clt_ops *ops,
goto out;
}
for (i = 0; i < paths_num; i++) {
- struct rtrs_clt_sess *sess;
+ struct rtrs_clt_path *clt_path;
- sess = alloc_sess(clt, &paths[i], nr_cpu_ids,
+ clt_path = alloc_path(clt, &paths[i], nr_cpu_ids,
nr_poll_queues);
- if (IS_ERR(sess)) {
- err = PTR_ERR(sess);
- goto close_all_sess;
+ if (IS_ERR(clt_path)) {
+ err = PTR_ERR(clt_path);
+ goto close_all_path;
}
if (!i)
- sess->for_new_clt = 1;
- list_add_tail_rcu(&sess->s.entry, &clt->paths_list);
+ clt_path->for_new_clt = 1;
+ list_add_tail_rcu(&clt_path->s.entry, &clt->paths_list);
- err = init_sess(sess);
+ err = init_path(clt_path);
if (err) {
- list_del_rcu(&sess->s.entry);
- rtrs_clt_close_conns(sess, true);
- free_percpu(sess->stats->pcpu_stats);
- kfree(sess->stats);
- free_sess(sess);
- goto close_all_sess;
+ list_del_rcu(&clt_path->s.entry);
+ rtrs_clt_close_conns(clt_path, true);
+ free_percpu(clt_path->stats->pcpu_stats);
+ kfree(clt_path->stats);
+ free_path(clt_path);
+ goto close_all_path;
}
- err = rtrs_clt_create_sess_files(sess);
+ err = rtrs_clt_create_path_files(clt_path);
if (err) {
- list_del_rcu(&sess->s.entry);
- rtrs_clt_close_conns(sess, true);
- free_percpu(sess->stats->pcpu_stats);
- kfree(sess->stats);
- free_sess(sess);
- goto close_all_sess;
+ list_del_rcu(&clt_path->s.entry);
+ rtrs_clt_close_conns(clt_path, true);
+ free_percpu(clt_path->stats->pcpu_stats);
+ kfree(clt_path->stats);
+ free_path(clt_path);
+ goto close_all_path;
}
}
err = alloc_permits(clt);
if (err)
- goto close_all_sess;
+ goto close_all_path;
return clt;
-close_all_sess:
- list_for_each_entry_safe(sess, tmp, &clt->paths_list, s.entry) {
- rtrs_clt_destroy_sess_files(sess, NULL);
- rtrs_clt_close_conns(sess, true);
- kobject_put(&sess->kobj);
+close_all_path:
+ list_for_each_entry_safe(clt_path, tmp, &clt->paths_list, s.entry) {
+ rtrs_clt_destroy_path_files(clt_path, NULL);
+ rtrs_clt_close_conns(clt_path, true);
+ kobject_put(&clt_path->kobj);
}
rtrs_clt_destroy_sysfs_root(clt);
free_clt(clt);
@@ -2856,37 +2872,38 @@ struct rtrs_clt *rtrs_clt_open(struct rtrs_clt_ops *ops,
EXPORT_SYMBOL(rtrs_clt_open);
/**
- * rtrs_clt_close() - Close a session
+ * rtrs_clt_close() - Close a path
* @clt: Session handle. Session is freed upon return.
*/
void rtrs_clt_close(struct rtrs_clt *clt)
{
- struct rtrs_clt_sess *sess, *tmp;
+ struct rtrs_clt_path *clt_path, *tmp;
/* Firstly forbid sysfs access */
rtrs_clt_destroy_sysfs_root(clt);
/* Now it is safe to iterate over all paths without locks */
- list_for_each_entry_safe(sess, tmp, &clt->paths_list, s.entry) {
- rtrs_clt_close_conns(sess, true);
- rtrs_clt_destroy_sess_files(sess, NULL);
- kobject_put(&sess->kobj);
+ list_for_each_entry_safe(clt_path, tmp, &clt->paths_list, s.entry) {
+ rtrs_clt_close_conns(clt_path, true);
+ rtrs_clt_destroy_path_files(clt_path, NULL);
+ kobject_put(&clt_path->kobj);
}
free_clt(clt);
}
EXPORT_SYMBOL(rtrs_clt_close);
-int rtrs_clt_reconnect_from_sysfs(struct rtrs_clt_sess *sess)
+int rtrs_clt_reconnect_from_sysfs(struct rtrs_clt_path *clt_path)
{
enum rtrs_clt_state old_state;
int err = -EBUSY;
bool changed;
- changed = rtrs_clt_change_state_get_old(sess, RTRS_CLT_RECONNECTING,
+ changed = rtrs_clt_change_state_get_old(clt_path,
+ RTRS_CLT_RECONNECTING,
&old_state);
if (changed) {
- sess->reconnect_attempts = 0;
- queue_delayed_work(rtrs_wq, &sess->reconnect_dwork, 0);
+ clt_path->reconnect_attempts = 0;
+ queue_delayed_work(rtrs_wq, &clt_path->reconnect_dwork, 0);
}
if (changed || old_state == RTRS_CLT_RECONNECTING) {
/*
@@ -2894,15 +2911,15 @@ int rtrs_clt_reconnect_from_sysfs(struct rtrs_clt_sess *sess)
* execution, so do the flush if we have queued something
* right now or work is pending.
*/
- flush_delayed_work(&sess->reconnect_dwork);
- err = (READ_ONCE(sess->state) ==
+ flush_delayed_work(&clt_path->reconnect_dwork);
+ err = (READ_ONCE(clt_path->state) ==
RTRS_CLT_CONNECTED ? 0 : -ENOTCONN);
}
return err;
}
-int rtrs_clt_remove_path_from_sysfs(struct rtrs_clt_sess *sess,
+int rtrs_clt_remove_path_from_sysfs(struct rtrs_clt_path *clt_path,
const struct attribute *sysfs_self)
{
enum rtrs_clt_state old_state;
@@ -2918,16 +2935,16 @@ int rtrs_clt_remove_path_from_sysfs(struct rtrs_clt_sess *sess,
* removing the path.
*/
do {
- rtrs_clt_close_conns(sess, true);
- changed = rtrs_clt_change_state_get_old(sess,
+ rtrs_clt_close_conns(clt_path, true);
+ changed = rtrs_clt_change_state_get_old(clt_path,
RTRS_CLT_DEAD,
&old_state);
} while (!changed && old_state != RTRS_CLT_DEAD);
if (changed) {
- rtrs_clt_remove_path_from_arr(sess);
- rtrs_clt_destroy_sess_files(sess, sysfs_self);
- kobject_put(&sess->kobj);
+ rtrs_clt_remove_path_from_arr(clt_path);
+ rtrs_clt_destroy_path_files(clt_path, sysfs_self);
+ kobject_put(&clt_path->kobj);
}
return 0;
@@ -2973,7 +2990,7 @@ int rtrs_clt_request(int dir, struct rtrs_clt_req_ops *ops,
struct scatterlist *sg, unsigned int sg_cnt)
{
struct rtrs_clt_io_req *req;
- struct rtrs_clt_sess *sess;
+ struct rtrs_clt_path *clt_path;
enum dma_data_direction dma_dir;
int err = -ECONNABORTED, i;
@@ -2995,19 +3012,19 @@ int rtrs_clt_request(int dir, struct rtrs_clt_req_ops *ops,
rcu_read_lock();
for (path_it_init(&it, clt);
- (sess = it.next_path(&it)) && it.i < it.clt->paths_num; it.i++) {
- if (READ_ONCE(sess->state) != RTRS_CLT_CONNECTED)
+ (clt_path = it.next_path(&it)) && it.i < it.clt->paths_num; it.i++) {
+ if (READ_ONCE(clt_path->state) != RTRS_CLT_CONNECTED)
continue;
- if (usr_len + hdr_len > sess->max_hdr_size) {
- rtrs_wrn_rl(sess->clt,
+ if (usr_len + hdr_len > clt_path->max_hdr_size) {
+ rtrs_wrn_rl(clt_path->clt,
"%s request failed, user message size is %zu and header length %zu, but max size is %u\n",
dir == READ ? "Read" : "Write",
- usr_len, hdr_len, sess->max_hdr_size);
+ usr_len, hdr_len, clt_path->max_hdr_size);
err = -EMSGSIZE;
break;
}
- req = rtrs_clt_get_req(sess, ops->conf_fn, permit, ops->priv,
+ req = rtrs_clt_get_req(clt_path, ops->conf_fn, permit, ops->priv,
vec, usr_len, sg, sg_cnt, data_len,
dma_dir);
if (dir == READ)
@@ -3033,16 +3050,16 @@ int rtrs_clt_rdma_cq_direct(struct rtrs_clt *clt, unsigned int index)
/* If no path, return -1 for block layer not to try again */
int cnt = -1;
struct rtrs_con *con;
- struct rtrs_clt_sess *sess;
+ struct rtrs_clt_path *clt_path;
struct path_it it;
rcu_read_lock();
for (path_it_init(&it, clt);
- (sess = it.next_path(&it)) && it.i < it.clt->paths_num; it.i++) {
- if (READ_ONCE(sess->state) != RTRS_CLT_CONNECTED)
+ (clt_path = it.next_path(&it)) && it.i < it.clt->paths_num; it.i++) {
+ if (READ_ONCE(clt_path->state) != RTRS_CLT_CONNECTED)
continue;
- con = sess->s.con[index + 1];
+ con = clt_path->s.con[index + 1];
cnt = ib_process_cq_direct(con->cq, -1);
if (cnt)
break;
@@ -3080,12 +3097,12 @@ EXPORT_SYMBOL(rtrs_clt_query);
int rtrs_clt_create_path_from_sysfs(struct rtrs_clt *clt,
struct rtrs_addr *addr)
{
- struct rtrs_clt_sess *sess;
+ struct rtrs_clt_path *clt_path;
int err;
- sess = alloc_sess(clt, addr, nr_cpu_ids, 0);
- if (IS_ERR(sess))
- return PTR_ERR(sess);
+ clt_path = alloc_path(clt, addr, nr_cpu_ids, 0);
+ if (IS_ERR(clt_path))
+ return PTR_ERR(clt_path);
mutex_lock(&clt->paths_mutex);
if (clt->paths_num == 0) {
@@ -3094,7 +3111,7 @@ int rtrs_clt_create_path_from_sysfs(struct rtrs_clt *clt,
* the addition of the first path is like a new session for
* the storage server
*/
- sess->for_new_clt = 1;
+ clt_path->for_new_clt = 1;
}
mutex_unlock(&clt->paths_mutex);
@@ -3104,24 +3121,24 @@ int rtrs_clt_create_path_from_sysfs(struct rtrs_clt *clt,
* IO will never grab it. Also it is very important to add
* path before init, since init fires LINK_CONNECTED event.
*/
- rtrs_clt_add_path_to_arr(sess);
+ rtrs_clt_add_path_to_arr(clt_path);
- err = init_sess(sess);
+ err = init_path(clt_path);
if (err)
- goto close_sess;
+ goto close_path;
- err = rtrs_clt_create_sess_files(sess);
+ err = rtrs_clt_create_path_files(clt_path);
if (err)
- goto close_sess;
+ goto close_path;
return 0;
-close_sess:
- rtrs_clt_remove_path_from_arr(sess);
- rtrs_clt_close_conns(sess, true);
- free_percpu(sess->stats->pcpu_stats);
- kfree(sess->stats);
- free_sess(sess);
+close_path:
+ rtrs_clt_remove_path_from_arr(clt_path);
+ rtrs_clt_close_conns(clt_path, true);
+ free_percpu(clt_path->stats->pcpu_stats);
+ kfree(clt_path->stats);
+ free_path(clt_path);
return err;
}
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt.h b/drivers/infiniband/ulp/rtrs/rtrs-clt.h
index 57579b2c91d1..899ea6e36462 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-clt.h
+++ b/drivers/infiniband/ulp/rtrs/rtrs-clt.h
@@ -124,7 +124,7 @@ struct rtrs_rbuf {
u32 rkey;
};
-struct rtrs_clt_sess {
+struct rtrs_clt_path {
struct rtrs_path s;
struct rtrs_clt *clt;
wait_queue_head_t state_wq;
@@ -156,7 +156,7 @@ struct rtrs_clt_sess {
struct rtrs_clt {
struct list_head paths_list; /* rcu protected list */
size_t paths_num;
- struct rtrs_clt_sess
+ struct rtrs_clt_path
__rcu * __percpu *pcpu_path;
uuid_t paths_uuid;
int paths_up;
@@ -186,9 +186,9 @@ static inline struct rtrs_clt_con *to_clt_con(struct rtrs_con *c)
return container_of(c, struct rtrs_clt_con, c);
}
-static inline struct rtrs_clt_sess *to_clt_sess(struct rtrs_path *s)
+static inline struct rtrs_clt_path *to_clt_path(struct rtrs_path *s)
{
- return container_of(s, struct rtrs_clt_sess, s);
+ return container_of(s, struct rtrs_clt_path, s);
}
static inline int permit_size(struct rtrs_clt *clt)
@@ -201,16 +201,16 @@ static inline struct rtrs_permit *get_permit(struct rtrs_clt *clt, int idx)
return (struct rtrs_permit *)(clt->permits + permit_size(clt) * idx);
}
-int rtrs_clt_reconnect_from_sysfs(struct rtrs_clt_sess *sess);
-void rtrs_clt_close_conns(struct rtrs_clt_sess *sess, bool wait);
+int rtrs_clt_reconnect_from_sysfs(struct rtrs_clt_path *path);
+void rtrs_clt_close_conns(struct rtrs_clt_path *clt_path, bool wait);
int rtrs_clt_create_path_from_sysfs(struct rtrs_clt *clt,
struct rtrs_addr *addr);
-int rtrs_clt_remove_path_from_sysfs(struct rtrs_clt_sess *sess,
+int rtrs_clt_remove_path_from_sysfs(struct rtrs_clt_path *path,
const struct attribute *sysfs_self);
void rtrs_clt_set_max_reconnect_attempts(struct rtrs_clt *clt, int value);
int rtrs_clt_get_max_reconnect_attempts(const struct rtrs_clt *clt);
-void free_sess(struct rtrs_clt_sess *sess);
+void free_path(struct rtrs_clt_path *clt_path);
/* rtrs-clt-stats.c */
@@ -242,8 +242,8 @@ ssize_t rtrs_clt_reset_all_help(struct rtrs_clt_stats *stats,
int rtrs_clt_create_sysfs_root_files(struct rtrs_clt *clt);
void rtrs_clt_destroy_sysfs_root(struct rtrs_clt *clt);
-int rtrs_clt_create_sess_files(struct rtrs_clt_sess *sess);
-void rtrs_clt_destroy_sess_files(struct rtrs_clt_sess *sess,
+int rtrs_clt_create_path_files(struct rtrs_clt_path *clt_path);
+void rtrs_clt_destroy_path_files(struct rtrs_clt_path *clt_path,
const struct attribute *sysfs_self);
#endif /* RTRS_CLT_H */
diff --git a/drivers/infiniband/ulp/rtrs/rtrs.h b/drivers/infiniband/ulp/rtrs/rtrs.h
index e28a53ff4b0b..d5d037660cea 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs.h
+++ b/drivers/infiniband/ulp/rtrs/rtrs.h
@@ -53,13 +53,13 @@ struct rtrs_clt_ops {
};
struct rtrs_clt *rtrs_clt_open(struct rtrs_clt_ops *ops,
- const char *sessname,
+ const char *pathname,
const struct rtrs_addr *paths,
size_t path_cnt, u16 port,
size_t pdu_sz, u8 reconnect_delay_sec,
s16 max_reconnect_attempts, u32 nr_poll_queues);
-void rtrs_clt_close(struct rtrs_clt *sess);
+void rtrs_clt_close(struct rtrs_clt *clt_path);
enum wait_type {
RTRS_PERMIT_NOWAIT = 0,
--
2.25.1
^ permalink raw reply related [flat|nested] 13+ messages in thread
* [PATCHv2 for-next 4/5] RDMA/rtrs-srv: Rename rtrs_srv to rtrs_srv_sess
2022-01-03 13:33 [PATCHv2 for-next 0/5] RTRS renaming Jack Wang
` (2 preceding siblings ...)
2022-01-03 13:33 ` [PATCHv2 for-next 3/5] RDMA/rtrs-clt: Rename rtrs_clt_sess to rtrs_clt_path Jack Wang
@ 2022-01-03 13:33 ` Jack Wang
2022-01-04 6:59 ` Guoqing Jiang
2022-01-03 13:33 ` [PATCHv2 for-next 5/5] RDMA/rtrs-clt: Rename rtrs_clt to rtrs_clt_sess Jack Wang
4 siblings, 1 reply; 13+ messages in thread
From: Jack Wang @ 2022-01-03 13:33 UTC (permalink / raw)
To: linux-rdma
Cc: bvanassche, leon, jgg, haris.iqbal, jinpu.wang, Vaishali Thakkar
From: Vaishali Thakkar <vaishali.thakkar@ionos.com>
Structure rtrs_srv is used for sessions so in order
to avoid confusions rename it to rtrs_srv_sess.
All changes were done with the help of following
Coccinelle script:
@@
@@
struct
- rtrs_srv
+ rtrs_srv_sess
Signed-off-by: Vaishali Thakkar <vaishali.thakkar@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
---
drivers/block/rnbd/rnbd-srv.c | 4 +-
drivers/block/rnbd/rnbd-srv.h | 2 +-
drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c | 6 +-
drivers/infiniband/ulp/rtrs/rtrs-srv.c | 60 ++++++++++----------
drivers/infiniband/ulp/rtrs/rtrs-srv.h | 4 +-
drivers/infiniband/ulp/rtrs/rtrs.h | 11 ++--
6 files changed, 45 insertions(+), 42 deletions(-)
diff --git a/drivers/block/rnbd/rnbd-srv.c b/drivers/block/rnbd/rnbd-srv.c
index abff9039cbea..05e59b831ffe 100644
--- a/drivers/block/rnbd/rnbd-srv.c
+++ b/drivers/block/rnbd/rnbd-srv.c
@@ -263,7 +263,7 @@ static void destroy_sess(struct rnbd_srv_session *srv_sess)
kfree(srv_sess);
}
-static int create_sess(struct rtrs_srv *rtrs)
+static int create_sess(struct rtrs_srv_sess *rtrs)
{
struct rnbd_srv_session *srv_sess;
char sessname[NAME_MAX];
@@ -305,7 +305,7 @@ static int create_sess(struct rtrs_srv *rtrs)
return 0;
}
-static int rnbd_srv_link_ev(struct rtrs_srv *rtrs,
+static int rnbd_srv_link_ev(struct rtrs_srv_sess *rtrs,
enum rtrs_srv_link_ev ev, void *priv)
{
struct rnbd_srv_session *srv_sess = priv;
diff --git a/drivers/block/rnbd/rnbd-srv.h b/drivers/block/rnbd/rnbd-srv.h
index 98ddc31eb408..e5604bce123a 100644
--- a/drivers/block/rnbd/rnbd-srv.h
+++ b/drivers/block/rnbd/rnbd-srv.h
@@ -20,7 +20,7 @@
struct rnbd_srv_session {
/* Entry inside global sess_list */
struct list_head list;
- struct rtrs_srv *rtrs;
+ struct rtrs_srv_sess *rtrs;
char sessname[NAME_MAX];
int queue_depth;
struct bio_set sess_bio_set;
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c b/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c
index 628ef20ebf0c..b94ae12c2795 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c
@@ -154,7 +154,7 @@ static const struct attribute_group rtrs_srv_stats_attr_group = {
static int rtrs_srv_create_once_sysfs_root_folders(struct rtrs_srv_path *srv_path)
{
- struct rtrs_srv *srv = srv_path->srv;
+ struct rtrs_srv_sess *srv = srv_path->srv;
int err = 0;
mutex_lock(&srv->paths_mutex);
@@ -199,7 +199,7 @@ static int rtrs_srv_create_once_sysfs_root_folders(struct rtrs_srv_path *srv_pat
static void
rtrs_srv_destroy_once_sysfs_root_folders(struct rtrs_srv_path *srv_path)
{
- struct rtrs_srv *srv = srv_path->srv;
+ struct rtrs_srv_sess *srv = srv_path->srv;
mutex_lock(&srv->paths_mutex);
if (!--srv->dev_ref) {
@@ -258,7 +258,7 @@ static int rtrs_srv_create_stats_files(struct rtrs_srv_path *srv_path)
int rtrs_srv_create_path_files(struct rtrs_srv_path *srv_path)
{
- struct rtrs_srv *srv = srv_path->srv;
+ struct rtrs_srv_sess *srv = srv_path->srv;
struct rtrs_path *s = &srv_path->s;
char str[NAME_MAX];
int err;
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-srv.c b/drivers/infiniband/ulp/rtrs/rtrs-srv.c
index 643c9ccb4b44..8d61c9cc3f99 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-srv.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-srv.c
@@ -108,7 +108,7 @@ static void free_id(struct rtrs_srv_op *id)
static void rtrs_srv_free_ops_ids(struct rtrs_srv_path *srv_path)
{
- struct rtrs_srv *srv = srv_path->srv;
+ struct rtrs_srv_sess *srv = srv_path->srv;
int i;
if (srv_path->ops_ids) {
@@ -137,7 +137,7 @@ static inline void rtrs_srv_inflight_ref_release(struct percpu_ref *ref)
static int rtrs_srv_alloc_ops_ids(struct rtrs_srv_path *srv_path)
{
- struct rtrs_srv *srv = srv_path->srv;
+ struct rtrs_srv_sess *srv = srv_path->srv;
struct rtrs_srv_op *id;
int i, ret;
@@ -541,7 +541,7 @@ EXPORT_SYMBOL(rtrs_srv_resp_rdma);
* @srv: Session pointer
* @priv: The private pointer that is associated with the session.
*/
-void rtrs_srv_set_sess_priv(struct rtrs_srv *srv, void *priv)
+void rtrs_srv_set_sess_priv(struct rtrs_srv_sess *srv, void *priv)
{
srv->priv = priv;
}
@@ -566,7 +566,7 @@ static void unmap_cont_bufs(struct rtrs_srv_path *srv_path)
static int map_cont_bufs(struct rtrs_srv_path *srv_path)
{
- struct rtrs_srv *srv = srv_path->srv;
+ struct rtrs_srv_sess *srv = srv_path->srv;
struct rtrs_path *ss = &srv_path->s;
int i, mri, err, mrs_num;
unsigned int chunk_bits;
@@ -723,7 +723,7 @@ static void rtrs_srv_info_rsp_done(struct ib_cq *cq, struct ib_wc *wc)
static void rtrs_srv_path_up(struct rtrs_srv_path *srv_path)
{
- struct rtrs_srv *srv = srv_path->srv;
+ struct rtrs_srv_sess *srv = srv_path->srv;
struct rtrs_srv_ctx *ctx = srv->ctx;
int up;
@@ -739,7 +739,7 @@ static void rtrs_srv_path_up(struct rtrs_srv_path *srv_path)
static void rtrs_srv_path_down(struct rtrs_srv_path *srv_path)
{
- struct rtrs_srv *srv = srv_path->srv;
+ struct rtrs_srv_sess *srv = srv_path->srv;
struct rtrs_srv_ctx *ctx = srv->ctx;
if (!srv_path->established)
@@ -756,7 +756,7 @@ static void rtrs_srv_path_down(struct rtrs_srv_path *srv_path)
static bool exist_sessname(struct rtrs_srv_ctx *ctx,
const char *sessname, const uuid_t *path_uuid)
{
- struct rtrs_srv *srv;
+ struct rtrs_srv_sess *srv;
struct rtrs_srv_path *srv_path;
bool found = false;
@@ -973,7 +973,7 @@ static int post_recv_io(struct rtrs_srv_con *con, size_t q_size)
static int post_recv_sess(struct rtrs_srv_path *srv_path)
{
- struct rtrs_srv *srv = srv_path->srv;
+ struct rtrs_srv_sess *srv = srv_path->srv;
struct rtrs_path *s = &srv_path->s;
size_t q_size;
int err, cid;
@@ -1000,7 +1000,7 @@ static void process_read(struct rtrs_srv_con *con,
{
struct rtrs_path *s = con->c.path;
struct rtrs_srv_path *srv_path = to_srv_path(s);
- struct rtrs_srv *srv = srv_path->srv;
+ struct rtrs_srv_sess *srv = srv_path->srv;
struct rtrs_srv_ctx *ctx = srv->ctx;
struct rtrs_srv_op *id;
@@ -1058,7 +1058,7 @@ static void process_write(struct rtrs_srv_con *con,
{
struct rtrs_path *s = con->c.path;
struct rtrs_srv_path *srv_path = to_srv_path(s);
- struct rtrs_srv *srv = srv_path->srv;
+ struct rtrs_srv_sess *srv = srv_path->srv;
struct rtrs_srv_ctx *ctx = srv->ctx;
struct rtrs_srv_op *id;
@@ -1145,7 +1145,7 @@ static void rtrs_srv_inv_rkey_done(struct ib_cq *cq, struct ib_wc *wc)
struct rtrs_srv_con *con = to_srv_con(wc->qp->qp_context);
struct rtrs_path *s = con->c.path;
struct rtrs_srv_path *srv_path = to_srv_path(s);
- struct rtrs_srv *srv = srv_path->srv;
+ struct rtrs_srv_sess *srv = srv_path->srv;
u32 msg_id, off;
void *data;
@@ -1202,7 +1202,7 @@ static void rtrs_srv_rdma_done(struct ib_cq *cq, struct ib_wc *wc)
struct rtrs_srv_con *con = to_srv_con(wc->qp->qp_context);
struct rtrs_path *s = con->c.path;
struct rtrs_srv_path *srv_path = to_srv_path(s);
- struct rtrs_srv *srv = srv_path->srv;
+ struct rtrs_srv_sess *srv = srv_path->srv;
u32 imm_type, imm_payload;
int err;
@@ -1295,7 +1295,8 @@ static void rtrs_srv_rdma_done(struct ib_cq *cq, struct ib_wc *wc)
* @sessname: Sessname buffer
* @len: Length of sessname buffer
*/
-int rtrs_srv_get_path_name(struct rtrs_srv *srv, char *sessname, size_t len)
+int rtrs_srv_get_path_name(struct rtrs_srv_sess *srv, char *sessname,
+ size_t len)
{
struct rtrs_srv_path *srv_path;
int err = -ENOTCONN;
@@ -1319,7 +1320,7 @@ EXPORT_SYMBOL(rtrs_srv_get_path_name);
* rtrs_srv_get_queue_depth() - Get rtrs_srv qdepth.
* @srv: Session
*/
-int rtrs_srv_get_queue_depth(struct rtrs_srv *srv)
+int rtrs_srv_get_queue_depth(struct rtrs_srv_sess *srv)
{
return srv->queue_depth;
}
@@ -1345,12 +1346,13 @@ static int rtrs_srv_get_next_cq_vector(struct rtrs_srv_path *srv_path)
static void rtrs_srv_dev_release(struct device *dev)
{
- struct rtrs_srv *srv = container_of(dev, struct rtrs_srv, dev);
+ struct rtrs_srv_sess *srv = container_of(dev, struct rtrs_srv_sess,
+ dev);
kfree(srv);
}
-static void free_srv(struct rtrs_srv *srv)
+static void free_srv(struct rtrs_srv_sess *srv)
{
int i;
@@ -1364,11 +1366,11 @@ static void free_srv(struct rtrs_srv *srv)
put_device(&srv->dev);
}
-static struct rtrs_srv *get_or_create_srv(struct rtrs_srv_ctx *ctx,
+static struct rtrs_srv_sess *get_or_create_srv(struct rtrs_srv_ctx *ctx,
const uuid_t *paths_uuid,
bool first_conn)
{
- struct rtrs_srv *srv;
+ struct rtrs_srv_sess *srv;
int i;
mutex_lock(&ctx->srv_mutex);
@@ -1430,7 +1432,7 @@ static struct rtrs_srv *get_or_create_srv(struct rtrs_srv_ctx *ctx,
return ERR_PTR(-ENOMEM);
}
-static void put_srv(struct rtrs_srv *srv)
+static void put_srv(struct rtrs_srv_sess *srv)
{
if (refcount_dec_and_test(&srv->refcount)) {
struct rtrs_srv_ctx *ctx = srv->ctx;
@@ -1444,7 +1446,7 @@ static void put_srv(struct rtrs_srv *srv)
}
}
-static void __add_path_to_srv(struct rtrs_srv *srv,
+static void __add_path_to_srv(struct rtrs_srv_sess *srv,
struct rtrs_srv_path *srv_path)
{
list_add_tail(&srv_path->s.entry, &srv->paths_list);
@@ -1454,7 +1456,7 @@ static void __add_path_to_srv(struct rtrs_srv *srv,
static void del_path_from_srv(struct rtrs_srv_path *srv_path)
{
- struct rtrs_srv *srv = srv_path->srv;
+ struct rtrs_srv_sess *srv = srv_path->srv;
if (WARN_ON(!srv))
return;
@@ -1490,7 +1492,7 @@ static int sockaddr_cmp(const struct sockaddr *a, const struct sockaddr *b)
}
}
-static bool __is_path_w_addr_exists(struct rtrs_srv *srv,
+static bool __is_path_w_addr_exists(struct rtrs_srv_sess *srv,
struct rdma_addr *addr)
{
struct rtrs_srv_path *srv_path;
@@ -1573,7 +1575,7 @@ static void rtrs_srv_close_work(struct work_struct *work)
static int rtrs_rdma_do_accept(struct rtrs_srv_path *srv_path,
struct rdma_cm_id *cm_id)
{
- struct rtrs_srv *srv = srv_path->srv;
+ struct rtrs_srv_sess *srv = srv_path->srv;
struct rtrs_msg_conn_rsp msg;
struct rdma_conn_param param;
int err;
@@ -1622,7 +1624,7 @@ static int rtrs_rdma_do_reject(struct rdma_cm_id *cm_id, int errno)
}
static struct rtrs_srv_path *
-__find_path(struct rtrs_srv *srv, const uuid_t *sess_uuid)
+__find_path(struct rtrs_srv_sess *srv, const uuid_t *sess_uuid)
{
struct rtrs_srv_path *srv_path;
@@ -1638,7 +1640,7 @@ static int create_con(struct rtrs_srv_path *srv_path,
struct rdma_cm_id *cm_id,
unsigned int cid)
{
- struct rtrs_srv *srv = srv_path->srv;
+ struct rtrs_srv_sess *srv = srv_path->srv;
struct rtrs_path *s = &srv_path->s;
struct rtrs_srv_con *con;
@@ -1725,7 +1727,7 @@ static int create_con(struct rtrs_srv_path *srv_path,
return err;
}
-static struct rtrs_srv_path *__alloc_path(struct rtrs_srv *srv,
+static struct rtrs_srv_path *__alloc_path(struct rtrs_srv_sess *srv,
struct rdma_cm_id *cm_id,
unsigned int con_num,
unsigned int recon_cnt,
@@ -1825,7 +1827,7 @@ static int rtrs_rdma_connect(struct rdma_cm_id *cm_id,
{
struct rtrs_srv_ctx *ctx = cm_id->context;
struct rtrs_srv_path *srv_path;
- struct rtrs_srv *srv;
+ struct rtrs_srv_sess *srv;
u16 version, con_num, cid;
u16 recon_cnt;
@@ -2184,7 +2186,7 @@ struct rtrs_srv_ctx *rtrs_srv_open(struct rtrs_srv_ops *ops, u16 port)
}
EXPORT_SYMBOL(rtrs_srv_open);
-static void close_paths(struct rtrs_srv *srv)
+static void close_paths(struct rtrs_srv_sess *srv)
{
struct rtrs_srv_path *srv_path;
@@ -2196,7 +2198,7 @@ static void close_paths(struct rtrs_srv *srv)
static void close_ctx(struct rtrs_srv_ctx *ctx)
{
- struct rtrs_srv *srv;
+ struct rtrs_srv_sess *srv;
mutex_lock(&ctx->srv_mutex);
list_for_each_entry(srv, &ctx->srv_list, ctx_list)
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-srv.h b/drivers/infiniband/ulp/rtrs/rtrs-srv.h
index 6119e6708080..6292e87f6afd 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-srv.h
+++ b/drivers/infiniband/ulp/rtrs/rtrs-srv.h
@@ -73,7 +73,7 @@ struct rtrs_srv_mr {
struct rtrs_srv_path {
struct rtrs_path s;
- struct rtrs_srv *srv;
+ struct rtrs_srv_sess *srv;
struct work_struct close_work;
enum rtrs_srv_state state;
spinlock_t state_lock;
@@ -90,7 +90,7 @@ struct rtrs_srv_path {
struct rtrs_srv_stats *stats;
};
-struct rtrs_srv {
+struct rtrs_srv_sess {
struct list_head paths_list;
int paths_up;
struct mutex paths_ev_mutex;
diff --git a/drivers/infiniband/ulp/rtrs/rtrs.h b/drivers/infiniband/ulp/rtrs/rtrs.h
index d5d037660cea..988688f93b62 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs.h
+++ b/drivers/infiniband/ulp/rtrs/rtrs.h
@@ -15,7 +15,7 @@
struct rtrs_permit;
struct rtrs_clt;
struct rtrs_srv_ctx;
-struct rtrs_srv;
+struct rtrs_srv_sess;
struct rtrs_srv_op;
/*
@@ -163,7 +163,7 @@ struct rtrs_srv_ops {
* @priv: Private data from user if previously set with
* rtrs_srv_set_sess_priv()
*/
- int (*link_ev)(struct rtrs_srv *sess, enum rtrs_srv_link_ev ev,
+ int (*link_ev)(struct rtrs_srv_sess *sess, enum rtrs_srv_link_ev ev,
void *priv);
};
@@ -173,11 +173,12 @@ void rtrs_srv_close(struct rtrs_srv_ctx *ctx);
bool rtrs_srv_resp_rdma(struct rtrs_srv_op *id, int errno);
-void rtrs_srv_set_sess_priv(struct rtrs_srv *sess, void *priv);
+void rtrs_srv_set_sess_priv(struct rtrs_srv_sess *sess, void *priv);
-int rtrs_srv_get_path_name(struct rtrs_srv *sess, char *sessname, size_t len);
+int rtrs_srv_get_path_name(struct rtrs_srv_sess *sess, char *sessname,
+ size_t len);
-int rtrs_srv_get_queue_depth(struct rtrs_srv *sess);
+int rtrs_srv_get_queue_depth(struct rtrs_srv_sess *sess);
int rtrs_addr_to_sockaddr(const char *str, size_t len, u16 port,
struct rtrs_addr *addr);
--
2.25.1
^ permalink raw reply related [flat|nested] 13+ messages in thread
* [PATCHv2 for-next 5/5] RDMA/rtrs-clt: Rename rtrs_clt to rtrs_clt_sess
2022-01-03 13:33 [PATCHv2 for-next 0/5] RTRS renaming Jack Wang
` (3 preceding siblings ...)
2022-01-03 13:33 ` [PATCHv2 for-next 4/5] RDMA/rtrs-srv: Rename rtrs_srv to rtrs_srv_sess Jack Wang
@ 2022-01-03 13:33 ` Jack Wang
2022-01-04 7:09 ` Guoqing Jiang
4 siblings, 1 reply; 13+ messages in thread
From: Jack Wang @ 2022-01-03 13:33 UTC (permalink / raw)
To: linux-rdma
Cc: bvanassche, leon, jgg, haris.iqbal, jinpu.wang, Vaishali Thakkar
From: Vaishali Thakkar <vaishali.thakkar@ionos.com>
Structure rtrs_clt is used for sessions. So to
avoid confusions rename it to rtrs_clt_sess.
Transformations are done with the help of
following coccinelle script.
@@
@@
struct
- rtrs_clt
+ rtrs_clt_sess
Signed-off-by: Vaishali Thakkar <vaishali.thakkar@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
---
drivers/block/rnbd/rnbd-clt.c | 4 +-
drivers/block/rnbd/rnbd-clt.h | 2 +-
drivers/infiniband/ulp/rtrs/rtrs-clt-sysfs.c | 24 +++---
drivers/infiniband/ulp/rtrs/rtrs-clt.c | 78 ++++++++++----------
drivers/infiniband/ulp/rtrs/rtrs-clt.h | 19 ++---
drivers/infiniband/ulp/rtrs/rtrs.h | 21 +++---
6 files changed, 77 insertions(+), 71 deletions(-)
diff --git a/drivers/block/rnbd/rnbd-clt.c b/drivers/block/rnbd/rnbd-clt.c
index 2df0657cdf00..70bbbdb81db1 100644
--- a/drivers/block/rnbd/rnbd-clt.c
+++ b/drivers/block/rnbd/rnbd-clt.c
@@ -433,7 +433,7 @@ static void msg_conf(void *priv, int errno)
schedule_work(&iu->work);
}
-static int send_usr_msg(struct rtrs_clt *rtrs, int dir,
+static int send_usr_msg(struct rtrs_clt_sess *rtrs, int dir,
struct rnbd_iu *iu, struct kvec *vec,
size_t len, struct scatterlist *sg, unsigned int sg_len,
void (*conf)(struct work_struct *work),
@@ -1010,7 +1010,7 @@ static int rnbd_client_xfer_request(struct rnbd_clt_dev *dev,
struct request *rq,
struct rnbd_iu *iu)
{
- struct rtrs_clt *rtrs = dev->sess->rtrs;
+ struct rtrs_clt_sess *rtrs = dev->sess->rtrs;
struct rtrs_permit *permit = iu->permit;
struct rnbd_msg_io msg;
struct rtrs_clt_req_ops req_ops;
diff --git a/drivers/block/rnbd/rnbd-clt.h b/drivers/block/rnbd/rnbd-clt.h
index 9ef8c4f306f2..0c2cae7f39b9 100644
--- a/drivers/block/rnbd/rnbd-clt.h
+++ b/drivers/block/rnbd/rnbd-clt.h
@@ -75,7 +75,7 @@ struct rnbd_cpu_qlist {
struct rnbd_clt_session {
struct list_head list;
- struct rtrs_clt *rtrs;
+ struct rtrs_clt_sess *rtrs;
wait_queue_head_t rtrs_waitq;
bool rtrs_ready;
struct rnbd_cpu_qlist __percpu
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt-sysfs.c b/drivers/infiniband/ulp/rtrs/rtrs-clt-sysfs.c
index 834f6d30487c..b4fa473b7888 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-clt-sysfs.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-clt-sysfs.c
@@ -50,7 +50,8 @@ static ssize_t max_reconnect_attempts_show(struct device *dev,
struct device_attribute *attr,
char *page)
{
- struct rtrs_clt *clt = container_of(dev, struct rtrs_clt, dev);
+ struct rtrs_clt_sess *clt = container_of(dev, struct rtrs_clt_sess,
+ dev);
return sysfs_emit(page, "%d\n",
rtrs_clt_get_max_reconnect_attempts(clt));
@@ -63,7 +64,8 @@ static ssize_t max_reconnect_attempts_store(struct device *dev,
{
int value;
int ret;
- struct rtrs_clt *clt = container_of(dev, struct rtrs_clt, dev);
+ struct rtrs_clt_sess *clt = container_of(dev, struct rtrs_clt_sess,
+ dev);
ret = kstrtoint(buf, 10, &value);
if (ret) {
@@ -90,9 +92,9 @@ static ssize_t mpath_policy_show(struct device *dev,
struct device_attribute *attr,
char *page)
{
- struct rtrs_clt *clt;
+ struct rtrs_clt_sess *clt;
- clt = container_of(dev, struct rtrs_clt, dev);
+ clt = container_of(dev, struct rtrs_clt_sess, dev);
switch (clt->mp_policy) {
case MP_POLICY_RR:
@@ -114,12 +116,12 @@ static ssize_t mpath_policy_store(struct device *dev,
const char *buf,
size_t count)
{
- struct rtrs_clt *clt;
+ struct rtrs_clt_sess *clt;
int value;
int ret;
size_t len = 0;
- clt = container_of(dev, struct rtrs_clt, dev);
+ clt = container_of(dev, struct rtrs_clt_sess, dev);
ret = kstrtoint(buf, 10, &value);
if (!ret && (value == MP_POLICY_RR ||
@@ -169,12 +171,12 @@ static ssize_t add_path_store(struct device *dev,
.src = &srcaddr,
.dst = &dstaddr
};
- struct rtrs_clt *clt;
+ struct rtrs_clt_sess *clt;
const char *nl;
size_t len;
int err;
- clt = container_of(dev, struct rtrs_clt, dev);
+ clt = container_of(dev, struct rtrs_clt_sess, dev);
nl = strchr(buf, '\n');
if (nl)
@@ -425,7 +427,7 @@ static const struct attribute_group rtrs_clt_path_attr_group = {
int rtrs_clt_create_path_files(struct rtrs_clt_path *clt_path)
{
- struct rtrs_clt *clt = clt_path->clt;
+ struct rtrs_clt_sess *clt = clt_path->clt;
char str[NAME_MAX];
int err;
struct rtrs_addr path = {
@@ -497,12 +499,12 @@ static const struct attribute_group rtrs_clt_attr_group = {
.attrs = rtrs_clt_attrs,
};
-int rtrs_clt_create_sysfs_root_files(struct rtrs_clt *clt)
+int rtrs_clt_create_sysfs_root_files(struct rtrs_clt_sess *clt)
{
return sysfs_create_group(&clt->dev.kobj, &rtrs_clt_attr_group);
}
-void rtrs_clt_destroy_sysfs_root(struct rtrs_clt *clt)
+void rtrs_clt_destroy_sysfs_root(struct rtrs_clt_sess *clt)
{
sysfs_remove_group(&clt->dev.kobj, &rtrs_clt_attr_group);
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt.c b/drivers/infiniband/ulp/rtrs/rtrs-clt.c
index 72b1fed365d1..a69c1e5b56dc 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-clt.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-clt.c
@@ -46,7 +46,7 @@ static struct rtrs_rdma_dev_pd dev_pd = {
static struct workqueue_struct *rtrs_wq;
static struct class *rtrs_clt_dev_class;
-static inline bool rtrs_clt_is_connected(const struct rtrs_clt *clt)
+static inline bool rtrs_clt_is_connected(const struct rtrs_clt_sess *clt)
{
struct rtrs_clt_path *clt_path;
bool connected = false;
@@ -60,7 +60,7 @@ static inline bool rtrs_clt_is_connected(const struct rtrs_clt *clt)
}
static struct rtrs_permit *
-__rtrs_get_permit(struct rtrs_clt *clt, enum rtrs_clt_con_type con_type)
+__rtrs_get_permit(struct rtrs_clt_sess *clt, enum rtrs_clt_con_type con_type)
{
size_t max_depth = clt->queue_depth;
struct rtrs_permit *permit;
@@ -87,7 +87,7 @@ __rtrs_get_permit(struct rtrs_clt *clt, enum rtrs_clt_con_type con_type)
return permit;
}
-static inline void __rtrs_put_permit(struct rtrs_clt *clt,
+static inline void __rtrs_put_permit(struct rtrs_clt_sess *clt,
struct rtrs_permit *permit)
{
clear_bit_unlock(permit->mem_id, clt->permits_map);
@@ -107,7 +107,7 @@ static inline void __rtrs_put_permit(struct rtrs_clt *clt,
* Context:
* Can sleep if @wait == RTRS_PERMIT_WAIT
*/
-struct rtrs_permit *rtrs_clt_get_permit(struct rtrs_clt *clt,
+struct rtrs_permit *rtrs_clt_get_permit(struct rtrs_clt_sess *clt,
enum rtrs_clt_con_type con_type,
enum wait_type can_wait)
{
@@ -142,7 +142,8 @@ EXPORT_SYMBOL(rtrs_clt_get_permit);
* Context:
* Does not matter
*/
-void rtrs_clt_put_permit(struct rtrs_clt *clt, struct rtrs_permit *permit)
+void rtrs_clt_put_permit(struct rtrs_clt_sess *clt,
+ struct rtrs_permit *permit)
{
if (WARN_ON(!test_bit(permit->mem_id, clt->permits_map)))
return;
@@ -303,7 +304,7 @@ static void rtrs_rdma_error_recovery(struct rtrs_clt_con *con)
if (rtrs_clt_change_state_from_to(clt_path,
RTRS_CLT_CONNECTED,
RTRS_CLT_RECONNECTING)) {
- struct rtrs_clt *clt = clt_path->clt;
+ struct rtrs_clt_sess *clt = clt_path->clt;
unsigned int delay_ms;
/*
@@ -743,7 +744,7 @@ static int post_recv_path(struct rtrs_clt_path *clt_path)
struct path_it {
int i;
struct list_head skip_list;
- struct rtrs_clt *clt;
+ struct rtrs_clt_sess *clt;
struct rtrs_clt_path *(*next_path)(struct path_it *it);
};
@@ -780,7 +781,7 @@ static struct rtrs_clt_path *get_next_path_rr(struct path_it *it)
{
struct rtrs_clt_path __rcu **ppcpu_path;
struct rtrs_clt_path *path;
- struct rtrs_clt *clt;
+ struct rtrs_clt_sess *clt;
clt = it->clt;
@@ -817,7 +818,7 @@ static struct rtrs_clt_path *get_next_path_rr(struct path_it *it)
static struct rtrs_clt_path *get_next_path_min_inflight(struct path_it *it)
{
struct rtrs_clt_path *min_path = NULL;
- struct rtrs_clt *clt = it->clt;
+ struct rtrs_clt_sess *clt = it->clt;
struct rtrs_clt_path *clt_path;
int min_inflight = INT_MAX;
int inflight;
@@ -868,7 +869,7 @@ static struct rtrs_clt_path *get_next_path_min_inflight(struct path_it *it)
static struct rtrs_clt_path *get_next_path_min_latency(struct path_it *it)
{
struct rtrs_clt_path *min_path = NULL;
- struct rtrs_clt *clt = it->clt;
+ struct rtrs_clt_sess *clt = it->clt;
struct rtrs_clt_path *clt_path;
ktime_t min_latency = KTIME_MAX;
ktime_t latency;
@@ -898,7 +899,7 @@ static struct rtrs_clt_path *get_next_path_min_latency(struct path_it *it)
return min_path;
}
-static inline void path_it_init(struct path_it *it, struct rtrs_clt *clt)
+static inline void path_it_init(struct path_it *it, struct rtrs_clt_sess *clt)
{
INIT_LIST_HEAD(&it->skip_list);
it->clt = clt;
@@ -1281,7 +1282,7 @@ static int rtrs_clt_read_req(struct rtrs_clt_io_req *req)
* @clt: clt context
* @fail_req: a failed io request.
*/
-static int rtrs_clt_failover_req(struct rtrs_clt *clt,
+static int rtrs_clt_failover_req(struct rtrs_clt_sess *clt,
struct rtrs_clt_io_req *fail_req)
{
struct rtrs_clt_path *alive_path;
@@ -1316,7 +1317,7 @@ static int rtrs_clt_failover_req(struct rtrs_clt *clt,
static void fail_all_outstanding_reqs(struct rtrs_clt_path *clt_path)
{
- struct rtrs_clt *clt = clt_path->clt;
+ struct rtrs_clt_sess *clt = clt_path->clt;
struct rtrs_clt_io_req *req;
int i, err;
@@ -1405,7 +1406,7 @@ static int alloc_path_reqs(struct rtrs_clt_path *clt_path)
return err;
}
-static int alloc_permits(struct rtrs_clt *clt)
+static int alloc_permits(struct rtrs_clt_sess *clt)
{
unsigned int chunk_bits;
int err, i;
@@ -1439,7 +1440,7 @@ static int alloc_permits(struct rtrs_clt *clt)
return err;
}
-static void free_permits(struct rtrs_clt *clt)
+static void free_permits(struct rtrs_clt_sess *clt)
{
if (clt->permits_map) {
size_t sz = clt->queue_depth;
@@ -1510,7 +1511,7 @@ static void rtrs_clt_init_hb(struct rtrs_clt_path *clt_path)
static void rtrs_clt_reconnect_work(struct work_struct *work);
static void rtrs_clt_close_work(struct work_struct *work);
-static struct rtrs_clt_path *alloc_path(struct rtrs_clt *clt,
+static struct rtrs_clt_path *alloc_path(struct rtrs_clt_sess *clt,
const struct rtrs_addr *path,
size_t con_num, u32 nr_poll_queues)
{
@@ -1775,7 +1776,7 @@ static int rtrs_rdma_addr_resolved(struct rtrs_clt_con *con)
static int rtrs_rdma_route_resolved(struct rtrs_clt_con *con)
{
struct rtrs_clt_path *clt_path = to_clt_path(con->c.path);
- struct rtrs_clt *clt = clt_path->clt;
+ struct rtrs_clt_sess *clt = clt_path->clt;
struct rtrs_msg_conn_req msg;
struct rdma_conn_param param;
@@ -1810,7 +1811,7 @@ static int rtrs_rdma_conn_established(struct rtrs_clt_con *con,
struct rdma_cm_event *ev)
{
struct rtrs_clt_path *clt_path = to_clt_path(con->c.path);
- struct rtrs_clt *clt = clt_path->clt;
+ struct rtrs_clt_sess *clt = clt_path->clt;
const struct rtrs_msg_conn_rsp *msg;
u16 version, queue_depth;
int errno;
@@ -2100,7 +2101,7 @@ static int create_cm(struct rtrs_clt_con *con)
static void rtrs_clt_path_up(struct rtrs_clt_path *clt_path)
{
- struct rtrs_clt *clt = clt_path->clt;
+ struct rtrs_clt_sess *clt = clt_path->clt;
int up;
/*
@@ -2131,7 +2132,7 @@ static void rtrs_clt_path_up(struct rtrs_clt_path *clt_path)
static void rtrs_clt_path_down(struct rtrs_clt_path *clt_path)
{
- struct rtrs_clt *clt = clt_path->clt;
+ struct rtrs_clt_sess *clt = clt_path->clt;
if (!clt_path->established)
return;
@@ -2220,7 +2221,7 @@ static inline bool xchg_sessions(struct rtrs_clt_path __rcu **rcu_ppcpu_path,
static void rtrs_clt_remove_path_from_arr(struct rtrs_clt_path *clt_path)
{
- struct rtrs_clt *clt = clt_path->clt;
+ struct rtrs_clt_sess *clt = clt_path->clt;
struct rtrs_clt_path *next;
bool wait_for_grace = false;
int cpu;
@@ -2310,7 +2311,7 @@ static void rtrs_clt_remove_path_from_arr(struct rtrs_clt_path *clt_path)
static void rtrs_clt_add_path_to_arr(struct rtrs_clt_path *clt_path)
{
- struct rtrs_clt *clt = clt_path->clt;
+ struct rtrs_clt_sess *clt = clt_path->clt;
mutex_lock(&clt->paths_mutex);
clt->paths_num++;
@@ -2636,7 +2637,7 @@ static int init_path(struct rtrs_clt_path *clt_path)
static void rtrs_clt_reconnect_work(struct work_struct *work)
{
struct rtrs_clt_path *clt_path;
- struct rtrs_clt *clt;
+ struct rtrs_clt_sess *clt;
unsigned int delay_ms;
int err;
@@ -2678,19 +2679,20 @@ static void rtrs_clt_reconnect_work(struct work_struct *work)
static void rtrs_clt_dev_release(struct device *dev)
{
- struct rtrs_clt *clt = container_of(dev, struct rtrs_clt, dev);
+ struct rtrs_clt_sess *clt = container_of(dev, struct rtrs_clt_sess,
+ dev);
kfree(clt);
}
-static struct rtrs_clt *alloc_clt(const char *sessname, size_t paths_num,
+static struct rtrs_clt_sess *alloc_clt(const char *sessname, size_t paths_num,
u16 port, size_t pdu_sz, void *priv,
void (*link_ev)(void *priv,
enum rtrs_clt_link_ev ev),
unsigned int reconnect_delay_sec,
unsigned int max_reconnect_attempts)
{
- struct rtrs_clt *clt;
+ struct rtrs_clt_sess *clt;
int err;
if (!paths_num || paths_num > MAX_PATHS_NUM)
@@ -2765,7 +2767,7 @@ static struct rtrs_clt *alloc_clt(const char *sessname, size_t paths_num,
return ERR_PTR(err);
}
-static void free_clt(struct rtrs_clt *clt)
+static void free_clt(struct rtrs_clt_sess *clt)
{
free_permits(clt);
free_percpu(clt->pcpu_path);
@@ -2793,7 +2795,7 @@ static void free_clt(struct rtrs_clt *clt)
*
* Return a valid pointer on success otherwise PTR_ERR.
*/
-struct rtrs_clt *rtrs_clt_open(struct rtrs_clt_ops *ops,
+struct rtrs_clt_sess *rtrs_clt_open(struct rtrs_clt_ops *ops,
const char *pathname,
const struct rtrs_addr *paths,
size_t paths_num, u16 port,
@@ -2801,7 +2803,7 @@ struct rtrs_clt *rtrs_clt_open(struct rtrs_clt_ops *ops,
s16 max_reconnect_attempts, u32 nr_poll_queues)
{
struct rtrs_clt_path *clt_path, *tmp;
- struct rtrs_clt *clt;
+ struct rtrs_clt_sess *clt;
int err, i;
if (strchr(pathname, '/') || strchr(pathname, '.')) {
@@ -2875,7 +2877,7 @@ EXPORT_SYMBOL(rtrs_clt_open);
* rtrs_clt_close() - Close a path
* @clt: Session handle. Session is freed upon return.
*/
-void rtrs_clt_close(struct rtrs_clt *clt)
+void rtrs_clt_close(struct rtrs_clt_sess *clt)
{
struct rtrs_clt_path *clt_path, *tmp;
@@ -2950,12 +2952,12 @@ int rtrs_clt_remove_path_from_sysfs(struct rtrs_clt_path *clt_path,
return 0;
}
-void rtrs_clt_set_max_reconnect_attempts(struct rtrs_clt *clt, int value)
+void rtrs_clt_set_max_reconnect_attempts(struct rtrs_clt_sess *clt, int value)
{
clt->max_reconnect_attempts = (unsigned int)value;
}
-int rtrs_clt_get_max_reconnect_attempts(const struct rtrs_clt *clt)
+int rtrs_clt_get_max_reconnect_attempts(const struct rtrs_clt_sess *clt)
{
return (int)clt->max_reconnect_attempts;
}
@@ -2985,9 +2987,9 @@ int rtrs_clt_get_max_reconnect_attempts(const struct rtrs_clt *clt)
* On dir=WRITE rtrs client will rdma write data in sg to server side.
*/
int rtrs_clt_request(int dir, struct rtrs_clt_req_ops *ops,
- struct rtrs_clt *clt, struct rtrs_permit *permit,
- const struct kvec *vec, size_t nr, size_t data_len,
- struct scatterlist *sg, unsigned int sg_cnt)
+ struct rtrs_clt_sess *clt, struct rtrs_permit *permit,
+ const struct kvec *vec, size_t nr, size_t data_len,
+ struct scatterlist *sg, unsigned int sg_cnt)
{
struct rtrs_clt_io_req *req;
struct rtrs_clt_path *clt_path;
@@ -3045,7 +3047,7 @@ int rtrs_clt_request(int dir, struct rtrs_clt_req_ops *ops,
}
EXPORT_SYMBOL(rtrs_clt_request);
-int rtrs_clt_rdma_cq_direct(struct rtrs_clt *clt, unsigned int index)
+int rtrs_clt_rdma_cq_direct(struct rtrs_clt_sess *clt, unsigned int index)
{
/* If no path, return -1 for block layer not to try again */
int cnt = -1;
@@ -3079,7 +3081,7 @@ EXPORT_SYMBOL(rtrs_clt_rdma_cq_direct);
* 0 on success
* -ECOMM no connection to the server
*/
-int rtrs_clt_query(struct rtrs_clt *clt, struct rtrs_attrs *attr)
+int rtrs_clt_query(struct rtrs_clt_sess *clt, struct rtrs_attrs *attr)
{
if (!rtrs_clt_is_connected(clt))
return -ECOMM;
@@ -3094,7 +3096,7 @@ int rtrs_clt_query(struct rtrs_clt *clt, struct rtrs_attrs *attr)
}
EXPORT_SYMBOL(rtrs_clt_query);
-int rtrs_clt_create_path_from_sysfs(struct rtrs_clt *clt,
+int rtrs_clt_create_path_from_sysfs(struct rtrs_clt_sess *clt,
struct rtrs_addr *addr)
{
struct rtrs_clt_path *clt_path;
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt.h b/drivers/infiniband/ulp/rtrs/rtrs-clt.h
index 899ea6e36462..d1b18a154ae0 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-clt.h
+++ b/drivers/infiniband/ulp/rtrs/rtrs-clt.h
@@ -126,7 +126,7 @@ struct rtrs_rbuf {
struct rtrs_clt_path {
struct rtrs_path s;
- struct rtrs_clt *clt;
+ struct rtrs_clt_sess *clt;
wait_queue_head_t state_wq;
enum rtrs_clt_state state;
atomic_t connected_cnt;
@@ -153,7 +153,7 @@ struct rtrs_clt_path {
*mp_skip_entry;
};
-struct rtrs_clt {
+struct rtrs_clt_sess {
struct list_head paths_list; /* rcu protected list */
size_t paths_num;
struct rtrs_clt_path
@@ -191,25 +191,26 @@ static inline struct rtrs_clt_path *to_clt_path(struct rtrs_path *s)
return container_of(s, struct rtrs_clt_path, s);
}
-static inline int permit_size(struct rtrs_clt *clt)
+static inline int permit_size(struct rtrs_clt_sess *clt)
{
return sizeof(struct rtrs_permit) + clt->pdu_sz;
}
-static inline struct rtrs_permit *get_permit(struct rtrs_clt *clt, int idx)
+static inline struct rtrs_permit *get_permit(struct rtrs_clt_sess *clt,
+ int idx)
{
return (struct rtrs_permit *)(clt->permits + permit_size(clt) * idx);
}
int rtrs_clt_reconnect_from_sysfs(struct rtrs_clt_path *path);
void rtrs_clt_close_conns(struct rtrs_clt_path *clt_path, bool wait);
-int rtrs_clt_create_path_from_sysfs(struct rtrs_clt *clt,
+int rtrs_clt_create_path_from_sysfs(struct rtrs_clt_sess *clt,
struct rtrs_addr *addr);
int rtrs_clt_remove_path_from_sysfs(struct rtrs_clt_path *path,
const struct attribute *sysfs_self);
-void rtrs_clt_set_max_reconnect_attempts(struct rtrs_clt *clt, int value);
-int rtrs_clt_get_max_reconnect_attempts(const struct rtrs_clt *clt);
+void rtrs_clt_set_max_reconnect_attempts(struct rtrs_clt_sess *clt, int value);
+int rtrs_clt_get_max_reconnect_attempts(const struct rtrs_clt_sess *clt);
void free_path(struct rtrs_clt_path *clt_path);
/* rtrs-clt-stats.c */
@@ -239,8 +240,8 @@ ssize_t rtrs_clt_reset_all_help(struct rtrs_clt_stats *stats,
/* rtrs-clt-sysfs.c */
-int rtrs_clt_create_sysfs_root_files(struct rtrs_clt *clt);
-void rtrs_clt_destroy_sysfs_root(struct rtrs_clt *clt);
+int rtrs_clt_create_sysfs_root_files(struct rtrs_clt_sess *clt);
+void rtrs_clt_destroy_sysfs_root(struct rtrs_clt_sess *clt);
int rtrs_clt_create_path_files(struct rtrs_clt_path *clt_path);
void rtrs_clt_destroy_path_files(struct rtrs_clt_path *clt_path,
diff --git a/drivers/infiniband/ulp/rtrs/rtrs.h b/drivers/infiniband/ulp/rtrs/rtrs.h
index 988688f93b62..e72e786c7013 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs.h
+++ b/drivers/infiniband/ulp/rtrs/rtrs.h
@@ -13,7 +13,7 @@
#include <linux/scatterlist.h>
struct rtrs_permit;
-struct rtrs_clt;
+struct rtrs_clt_sess;
struct rtrs_srv_ctx;
struct rtrs_srv_sess;
struct rtrs_srv_op;
@@ -52,14 +52,14 @@ struct rtrs_clt_ops {
void (*link_ev)(void *priv, enum rtrs_clt_link_ev ev);
};
-struct rtrs_clt *rtrs_clt_open(struct rtrs_clt_ops *ops,
+struct rtrs_clt_sess *rtrs_clt_open(struct rtrs_clt_ops *ops,
const char *pathname,
const struct rtrs_addr *paths,
size_t path_cnt, u16 port,
size_t pdu_sz, u8 reconnect_delay_sec,
s16 max_reconnect_attempts, u32 nr_poll_queues);
-void rtrs_clt_close(struct rtrs_clt *clt_path);
+void rtrs_clt_close(struct rtrs_clt_sess *clt_path);
enum wait_type {
RTRS_PERMIT_NOWAIT = 0,
@@ -77,11 +77,12 @@ enum rtrs_clt_con_type {
RTRS_IO_CON
};
-struct rtrs_permit *rtrs_clt_get_permit(struct rtrs_clt *sess,
- enum rtrs_clt_con_type con_type,
- enum wait_type wait);
+struct rtrs_permit *rtrs_clt_get_permit(struct rtrs_clt_sess *sess,
+ enum rtrs_clt_con_type con_type,
+ enum wait_type wait);
-void rtrs_clt_put_permit(struct rtrs_clt *sess, struct rtrs_permit *permit);
+void rtrs_clt_put_permit(struct rtrs_clt_sess *sess,
+ struct rtrs_permit *permit);
/**
* rtrs_clt_req_ops - it holds the request confirmation callback
@@ -98,10 +99,10 @@ struct rtrs_clt_req_ops {
};
int rtrs_clt_request(int dir, struct rtrs_clt_req_ops *ops,
- struct rtrs_clt *sess, struct rtrs_permit *permit,
+ struct rtrs_clt_sess *sess, struct rtrs_permit *permit,
const struct kvec *vec, size_t nr, size_t len,
struct scatterlist *sg, unsigned int sg_cnt);
-int rtrs_clt_rdma_cq_direct(struct rtrs_clt *clt, unsigned int index);
+int rtrs_clt_rdma_cq_direct(struct rtrs_clt_sess *clt, unsigned int index);
/**
* rtrs_attrs - RTRS session attributes
@@ -112,7 +113,7 @@ struct rtrs_attrs {
u32 max_segments;
};
-int rtrs_clt_query(struct rtrs_clt *sess, struct rtrs_attrs *attr);
+int rtrs_clt_query(struct rtrs_clt_sess *sess, struct rtrs_attrs *attr);
/*
* Here goes RTRS server API
--
2.25.1
^ permalink raw reply related [flat|nested] 13+ messages in thread
* Re: [PATCHv2 for-next 2/5] RDMA/rtrs-srv: Rename rtrs_srv_sess to rtrs_srv_path
2022-01-03 13:33 ` [PATCHv2 for-next 2/5] RDMA/rtrs-srv: Rename rtrs_srv_sess to rtrs_srv_path Jack Wang
@ 2022-01-04 6:50 ` Guoqing Jiang
0 siblings, 0 replies; 13+ messages in thread
From: Guoqing Jiang @ 2022-01-04 6:50 UTC (permalink / raw)
To: Jack Wang, linux-rdma
Cc: bvanassche, leon, jgg, haris.iqbal, Vaishali Thakkar
On 1/3/22 9:33 PM, Jack Wang wrote:
> --- a/drivers/block/rnbd/rnbd-srv.c
> +++ b/drivers/block/rnbd/rnbd-srv.c
> @@ -269,9 +269,9 @@ static int create_sess(struct rtrs_srv *rtrs)
> char sessname[NAME_MAX];
It is pathname with the change.
> int err;
>
> - err = rtrs_srv_get_sess_name(rtrs, sessname, sizeof(sessname));
> + err = rtrs_srv_get_path_name(rtrs, sessname, sizeof(sessname));
> if (err) {
> - pr_err("rtrs_srv_get_sess_name(%s): %d\n", sessname, err);
> + pr_err("rtrs_srv_get_path_name(%s): %d\n", sessname, err);
>
> return err;
> }
[ ... ]
> -void close_sess(struct rtrs_srv_sess *sess)
> +void close_path(struct rtrs_srv_path *srv_path)
I guess close_srv_path is better if it has counterpart in rtrs-clt.c.
[ ... ]
> rtrs_err_rl(s,
> "Sending I/O response failed, session %s is disconnected, sess state %s\n",
With the change, the above should print path instead of session.
> - kobject_name(&sess->kobj),
> - rtrs_srv_state_str(sess->state));
> + kobject_name(&srv_path->kobj),
> + rtrs_srv_state_str(srv_path->state));
> goto out;
> }
> if (always_invalidate) {
> - struct rtrs_srv_mr *mr = &sess->mrs[id->msg_id];
> + struct rtrs_srv_mr *mr = &srv_path->mrs[id->msg_id];
>
> ib_update_fast_reg_key(mr->mr, ib_inc_rkey(mr->mr->rkey));
> }
> if (atomic_sub_return(1, &con->c.sq_wr_avail) < 0) {
> rtrs_err(s, "IB send queue full:*sess*=%s cid=%d\n",
> - kobject_name(&sess->kobj),
> + kobject_name(&srv_path->kobj),
Ditto.
> con->c.cid);
> atomic_add(1, &con->c.sq_wr_avail);
> spin_lock(&con->rsp_wr_wait_lock);
> @@ -524,11 +527,11 @@ bool rtrs_srv_resp_rdma(struct rtrs_srv_op *id, int status)
>
> if (err) {
> rtrs_err_rl(s, "IO response failed: %d:*sess*=%s\n", err,
> - kobject_name(&sess->kobj));
> - close_sess(sess);
> + kobject_name(&srv_path->kobj));
> + close_path(srv_path);
Ditto.
[ ... ]
> @@ -754,7 +757,7 @@ static bool exist_sessname(struct rtrs_srv_ctx *ctx,
> const char *sessname, const uuid_t *path_uuid)
> {
> struct rtrs_srv *srv;
> - struct rtrs_srv_sess *sess;
> + struct rtrs_srv_path *srv_path;
> bool found = false;
>
> mutex_lock(&ctx->srv_mutex);
> @@ -767,9 +770,9 @@ static bool exist_sessname(struct rtrs_srv_ctx *ctx,
> continue;
> }
>
> - list_for_each_entry(sess, &srv->paths_list, s.entry) {
> - if (strlen(sess->s.sessname) == strlen(sessname) &&
> - !strcmp(sess->s.sessname, sessname)) {
> + list_for_each_entry(srv_path, &srv->paths_list, s.entry) {
> + if (strlen(srv_path->s.sessname) == strlen(sessname) &&
> + !strcmp(srv_path->s.sessname, sessname)) {
I am wondering if the sessname should be replaced with pathname, pls
double check.
Does it make sense to add the definitions about "path" and "session"
somewhere such
as in README?
[ ... ]
>
> -static int post_recv_sess(struct rtrs_srv_sess *sess)
> +static int post_recv_sess(struct rtrs_srv_path *srv_path)
post_recv_path?
> {
> - struct rtrs_srv *srv = sess->srv;
> - struct rtrs_path *s = &sess->s;
> + struct rtrs_srv *srv = srv_path->srv;
> + struct rtrs_path *s = &srv_path->s;
> size_t q_size;
> int err, cid;
>
> - for (cid = 0; cid < sess->s.con_num; cid++) {
> + for (cid = 0; cid < srv_path->s.con_num; cid++) {
> if (cid == 0)
> q_size = SERVICE_CON_QUEUE_DEPTH;
> else
> q_size = srv->queue_depth;
>
> - err = post_recv_io(to_srv_con(sess->s.con[cid]), q_size);
> + err = post_recv_io(to_srv_con(srv_path->s.con[cid]), q_size);
> if (err) {
> rtrs_err(s, "post_recv_io(), err: %d\n", err);
> return err;
[ .. ]
> /**
> - * rtrs_srv_get_sess_name() - Get rtrs_srv peer hostname.
> + * rtrs_srv_get_path_name() - Get rtrs_srv peer hostname.
> * @srv: Session
> * @sessname: Sessname buffer
> * @len: Length of sessname buffer
> */
> -int rtrs_srv_get_sess_name(struct rtrs_srv *srv, char *sessname, size_t len)
> +int rtrs_srv_get_path_name(struct rtrs_srv *srv, char *sessname, size_t len)
The "sessname" argument is actually for path, right?
> {
> - struct rtrs_srv_sess *sess;
> + struct rtrs_srv_path *srv_path;
> int err = -ENOTCONN;
>
> mutex_lock(&srv->paths_mutex);
> - list_for_each_entry(sess, &srv->paths_list, s.entry) {
> - if (sess->state != RTRS_SRV_CONNECTED)
> + list_for_each_entry(srv_path, &srv->paths_list, s.entry) {
> + if (srv_path->state != RTRS_SRV_CONNECTED)
> continue;
> - strscpy(sessname, sess->s.sessname,
> - min_t(size_t, sizeof(sess->s.sessname), len));
> + strscpy(sessname, srv_path->s.sessname,
> + min_t(size_t, sizeof(srv_path->s.sessname), len));
> err = 0;
> break;
> }
> @@ -1307,7 +1313,7 @@ int rtrs_srv_get_sess_name(struct rtrs_srv *srv, char *sessname, size_t len)
>
> return err;
> }
> -EXPORT_SYMBOL(rtrs_srv_get_sess_name);
> +EXPORT_SYMBOL(rtrs_srv_get_path_name);
[ ... ]
Thanks,
Guoqing
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCHv2 for-next 3/5] RDMA/rtrs-clt: Rename rtrs_clt_sess to rtrs_clt_path
2022-01-03 13:33 ` [PATCHv2 for-next 3/5] RDMA/rtrs-clt: Rename rtrs_clt_sess to rtrs_clt_path Jack Wang
@ 2022-01-04 6:52 ` Guoqing Jiang
2022-01-04 9:15 ` Vaishali Thakkar
0 siblings, 1 reply; 13+ messages in thread
From: Guoqing Jiang @ 2022-01-04 6:52 UTC (permalink / raw)
To: Jack Wang, linux-rdma
Cc: bvanassche, leon, jgg, haris.iqbal, Vaishali Thakkar
On 1/3/22 9:33 PM, Jack Wang wrote:
[ .. ]
> -static int post_recv_sess(struct rtrs_clt_sess *sess)
> +static int post_recv_path(struct rtrs_clt_path *clt_path)
How about rename it to post_recv_clt_path to make it obviously if you
has the same change to post_recv_sess in rtrs-srv.c?
[ ... ]
> @@ -1378,13 +1383,14 @@ static int alloc_sess_reqs(struct rtrs_clt_sess *sess)
> if (!req->sge)
> goto out;
>
> - req->mr = ib_alloc_mr(sess->s.dev->ib_pd, IB_MR_TYPE_MEM_REG,
> - sess->max_pages_per_mr);
> + req->mr = ib_alloc_mr(clt_path->s.dev->ib_pd,
> + IB_MR_TYPE_MEM_REG,
> + clt_path->max_pages_per_mr);
> if (IS_ERR(req->mr)) {
> err = PTR_ERR(req->mr);
> req->mr = NULL;
> pr_err("Failed to alloc sess->max_pages_per_mr %d\n",
s/sess/clt_path/
> - sess->max_pages_per_mr);
> + clt_path->max_pages_per_mr);
> goto out;
> }
>
[ ... ]
> -static int create_con(struct rtrs_clt_sess *sess, unsigned int cid)
> +static int create_con(struct rtrs_clt_path *clt_path, unsigned int cid)
Could you rename it to create_clt_con? Because the function name appears
in both client and server.
> {
> struct rtrs_clt_con *con;
>
> @@ -1601,28 +1609,28 @@ static int create_con(struct rtrs_clt_sess *sess, unsigned int cid)
> /* Map first two connections to the first CPU */
> con->cpu = (cid ? cid - 1 : 0) % nr_cpu_ids;
> con->c.cid = cid;
> - con->c.path = &sess->s;
> + con->c.path = &clt_path->s;
> /* Align with srv, init as 1 */
> atomic_set(&con->c.wr_cnt, 1);
> mutex_init(&con->con_mutex);
>
> - sess->s.con[cid] = &con->c;
> + clt_path->s.con[cid] = &con->c;
>
> return 0;
> }
>
[ ... ]
> -static inline bool xchg_sessions(struct rtrs_clt_sess __rcu **rcu_ppcpu_path,
> - struct rtrs_clt_sess *sess,
> - struct rtrs_clt_sess *next)
> +static inline bool xchg_sessions(struct rtrs_clt_path __rcu **rcu_ppcpu_path,
> + struct rtrs_clt_path *clt_path,
> + struct rtrs_clt_path *next)
Now, it is used to exchange paths instead of sessions, right?
> {
> - struct rtrs_clt_sess **ppcpu_path;
> + struct rtrs_clt_path **ppcpu_path;
>
> /* Call cmpxchg() without sparse warnings */
> ppcpu_path = (typeof(ppcpu_path))rcu_ppcpu_path;
> - return sess == cmpxchg(ppcpu_path, sess, next);
> + return clt_path == cmpxchg(ppcpu_path, clt_path, next);
> }
[ ... ]
> @@ -2375,31 +2387,32 @@ static int init_conns(struct rtrs_clt_sess *sess)
> static void rtrs_clt_info_req_done(struct ib_cq *cq, struct ib_wc *wc)
> {
> struct rtrs_clt_con *con = to_clt_con(wc->qp->qp_context);
> - struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
> + struct rtrs_clt_path *clt_path = to_clt_path(con->c.path);
> struct rtrs_iu *iu;
>
> iu = container_of(wc->wr_cqe, struct rtrs_iu, cqe);
> - rtrs_iu_free(iu, sess->s.dev->ib_dev, 1);
> + rtrs_iu_free(iu, clt_path->s.dev->ib_dev, 1);
>
> if (wc->status != IB_WC_SUCCESS) {
> - rtrs_err(sess->clt, "Sess info request send failed: %s\n",
> + rtrs_err(clt_path->clt, "*Sess* info request send failed: %s\n",
Path info, same as below.
[ ... ]
> if (wc->status != IB_WC_SUCCESS) {
> - rtrs_err(sess->clt, "Sess info response recv failed: %s\n",
> + rtrs_err(clt_path->clt, "Path info response recv failed: %s\n",
> ib_wc_status_msg(wc->status));
> goto out;
> }
> WARN_ON(wc->opcode != IB_WC_RECV);
>
> if (wc->byte_len < sizeof(*msg)) {
> - rtrs_err(sess->clt, "Sess info response is malformed: size %d\n",
> + rtrs_err(clt_path->clt, "Path info response is malformed: size %d\n",
> wc->byte_len);
> goto out;
> }
[ ... ]
> @@ -2533,33 +2548,34 @@ static int rtrs_send_sess_info(struct rtrs_clt_sess *sess)
> /* Prepare for getting info response */
> err = rtrs_iu_post_recv(&usr_con->c, rx_iu);
> if (err) {
> - rtrs_err(sess->clt, "rtrs_iu_post_recv(), err: %d\n", err);
> + rtrs_err(clt_path->clt, "rtrs_iu_post_recv(), err: %d\n", err);
> goto out;
> }
> rx_iu = NULL;
>
> msg = tx_iu->buf;
> msg->type = cpu_to_le16(RTRS_MSG_INFO_REQ);
> - memcpy(msg->sessname, sess->s.sessname, sizeof(msg->sessname));
> + memcpy(msg->sessname, clt_path->s.sessname, sizeof(msg->sessname));
Pls check if it is pathname.
[ ... ]
> /**
> - * init_sess() - establishes all session connections and does handshake
> - * @sess: client session.
> + * init_pathi() - establishes all path connections and does handshake
s/init_pathi/init_path, maybe it would be better to call it
init_clt_path here.
> + * @clt_path: client path.
> * In case of error full close or reconnect procedure should be taken,
> * because reconnect or close async works can be started.
> */
> -static int init_sess(struct rtrs_clt_sess *sess)
> +static int init_path(struct rtrs_clt_path *clt_path)
[ ... ]
> - if (sess->reconnect_attempts >= clt->max_reconnect_attempts) {
> + if (clt_path->reconnect_attempts >= clt->max_reconnect_attempts) {
> /* Close a*session* completely if max attempts is reached */
I guess it is close a path now.
> - rtrs_clt_close_conns(sess, false);
> + rtrs_clt_close_conns(clt_path, false);
> return;
> }
[ ... ]
Thanks,
Guoqing
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCHv2 for-next 4/5] RDMA/rtrs-srv: Rename rtrs_srv to rtrs_srv_sess
2022-01-03 13:33 ` [PATCHv2 for-next 4/5] RDMA/rtrs-srv: Rename rtrs_srv to rtrs_srv_sess Jack Wang
@ 2022-01-04 6:59 ` Guoqing Jiang
2022-01-04 8:59 ` Vaishali Thakkar
0 siblings, 1 reply; 13+ messages in thread
From: Guoqing Jiang @ 2022-01-04 6:59 UTC (permalink / raw)
To: Jack Wang, linux-rdma
Cc: bvanassche, leon, jgg, haris.iqbal, Vaishali Thakkar
On 1/3/22 9:33 PM, Jack Wang wrote:
> diff --git a/drivers/block/rnbd/rnbd-srv.h b/drivers/block/rnbd/rnbd-srv.h
> index 98ddc31eb408..e5604bce123a 100644
> --- a/drivers/block/rnbd/rnbd-srv.h
> +++ b/drivers/block/rnbd/rnbd-srv.h
> @@ -20,7 +20,7 @@
> struct rnbd_srv_session {
> /* Entry inside global sess_list */
> struct list_head list;
> - struct rtrs_srv *rtrs;
> + struct rtrs_srv_sess *rtrs;
How about change it to srv_sess?
> char sessname[NAME_MAX];
> int queue_depth;
> struct bio_set sess_bio_set;
> diff --git a/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c b/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c
> index 628ef20ebf0c..b94ae12c2795 100644
> --- a/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c
> +++ b/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c
> @@ -154,7 +154,7 @@ static const struct attribute_group rtrs_srv_stats_attr_group = {
>
> static int rtrs_srv_create_once_sysfs_root_folders(struct rtrs_srv_path *srv_path)
> {
> - struct rtrs_srv *srv = srv_path->srv;
> + struct rtrs_srv_sess *srv = srv_path->srv;
It is srv here, maybe srv_sess too, FYI.
[ ... ]
> diff --git a/drivers/infiniband/ulp/rtrs/rtrs-srv.h b/drivers/infiniband/ulp/rtrs/rtrs-srv.h
> index 6119e6708080..6292e87f6afd 100644
> --- a/drivers/infiniband/ulp/rtrs/rtrs-srv.h
> +++ b/drivers/infiniband/ulp/rtrs/rtrs-srv.h
> @@ -73,7 +73,7 @@ struct rtrs_srv_mr {
>
> struct rtrs_srv_path {
> struct rtrs_path s;
> - struct rtrs_srv *srv;
> + struct rtrs_srv_sess *srv;
Ditto.
Thanks,
Guoqing
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCHv2 for-next 5/5] RDMA/rtrs-clt: Rename rtrs_clt to rtrs_clt_sess
2022-01-03 13:33 ` [PATCHv2 for-next 5/5] RDMA/rtrs-clt: Rename rtrs_clt to rtrs_clt_sess Jack Wang
@ 2022-01-04 7:09 ` Guoqing Jiang
2022-01-05 15:36 ` Vaishali Thakkar
0 siblings, 1 reply; 13+ messages in thread
From: Guoqing Jiang @ 2022-01-04 7:09 UTC (permalink / raw)
To: Jack Wang, linux-rdma
Cc: bvanassche, leon, jgg, haris.iqbal, Vaishali Thakkar
On 1/3/22 9:33 PM, Jack Wang wrote:
> From: Vaishali Thakkar<vaishali.thakkar@ionos.com>
>
> Structure rtrs_clt is used for sessions. So to
> avoid confusions rename it to rtrs_clt_sess.
>
> Transformations are done with the help of
> following coccinelle script.
>
> @@
> @@
> struct
> - rtrs_clt
> + rtrs_clt_sess
>
> Signed-off-by: Vaishali Thakkar<vaishali.thakkar@ionos.com>
> Signed-off-by: Jack Wang<jinpu.wang@ionos.com>
> ---
> drivers/block/rnbd/rnbd-clt.c | 4 +-
> drivers/block/rnbd/rnbd-clt.h | 2 +-
> drivers/infiniband/ulp/rtrs/rtrs-clt-sysfs.c | 24 +++---
> drivers/infiniband/ulp/rtrs/rtrs-clt.c | 78 ++++++++++----------
> drivers/infiniband/ulp/rtrs/rtrs-clt.h | 19 ++---
> drivers/infiniband/ulp/rtrs/rtrs.h | 21 +++---
> 6 files changed, 77 insertions(+), 71 deletions(-)
>
> diff --git a/drivers/block/rnbd/rnbd-clt.c b/drivers/block/rnbd/rnbd-clt.c
> index 2df0657cdf00..70bbbdb81db1 100644
> --- a/drivers/block/rnbd/rnbd-clt.c
> +++ b/drivers/block/rnbd/rnbd-clt.c
> @@ -433,7 +433,7 @@ static void msg_conf(void *priv, int errno)
> schedule_work(&iu->work);
> }
>
> -static int send_usr_msg(struct rtrs_clt *rtrs, int dir,
> +static int send_usr_msg(struct rtrs_clt_sess *rtrs, int dir,
> struct rnbd_iu *iu, struct kvec *vec,
> size_t len, struct scatterlist *sg, unsigned int sg_len,
> void (*conf)(struct work_struct *work),
> @@ -1010,7 +1010,7 @@ static int rnbd_client_xfer_request(struct rnbd_clt_dev *dev,
> struct request *rq,
> struct rnbd_iu *iu)
> {
> - struct rtrs_clt *rtrs = dev->sess->rtrs;
> + struct rtrs_clt_sess *rtrs = dev->sess->rtrs;
> struct rtrs_permit *permit = iu->permit;
> struct rnbd_msg_io msg;
> struct rtrs_clt_req_ops req_ops;
> diff --git a/drivers/block/rnbd/rnbd-clt.h b/drivers/block/rnbd/rnbd-clt.h
> index 9ef8c4f306f2..0c2cae7f39b9 100644
> --- a/drivers/block/rnbd/rnbd-clt.h
> +++ b/drivers/block/rnbd/rnbd-clt.h
> @@ -75,7 +75,7 @@ struct rnbd_cpu_qlist {
>
> struct rnbd_clt_session {
> struct list_head list;
> - struct rtrs_clt *rtrs;
> + struct rtrs_clt_sess *rtrs;
While at it, how about change it to clt_sess? Otherwise there is symbol name
pollution between rnbd_clt_session and rnbd_srv_session.
[ ...]
> /*
> @@ -743,7 +744,7 @@ static int post_recv_path(struct rtrs_clt_path *clt_path)
> struct path_it {
> int i;
> struct list_head skip_list;
> - struct rtrs_clt *clt;
> + struct rtrs_clt_sess *clt;
To align with the change of type, s/clt/clt_sess? If so, it applies to
others as well.
[ ... ]
> --- a/drivers/infiniband/ulp/rtrs/rtrs-clt.h
> +++ b/drivers/infiniband/ulp/rtrs/rtrs-clt.h
> @@ -126,7 +126,7 @@ struct rtrs_rbuf {
>
> struct rtrs_clt_path {
> struct rtrs_path s;
> - struct rtrs_clt *clt;
> + struct rtrs_clt_sess **clt*;
Ditto.
[ ... ]
> -struct rtrs_clt *rtrs_clt_open(struct rtrs_clt_ops *ops,
> +struct rtrs_clt_sess *rtrs_clt_open(struct rtrs_clt_ops *ops,
> const char *pathname,
> const struct rtrs_addr *paths,
> size_t path_cnt, u16 port,
> size_t pdu_sz, u8 reconnect_delay_sec,
> s16 max_reconnect_attempts, u32 nr_poll_queues);
>
> -void rtrs_clt_close(struct rtrs_clt *clt_path);
> +void rtrs_clt_close(struct rtrs_clt_sess *clt_path);
void rtrs_clt_close(struct rtrs_clt_sess *clt_sess);
or
void rtrs_clt_close(struct rtrs_clt_path *clt_path);
Maybe rename those functions to rtrs_clt_session_{open,close} to resolve
the ambiguous
completely, or we can live with current name I am not sure.
BTW, I suppose the series deserve beer from Danil 😉
Thanks,
Guoqing
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCHv2 for-next 4/5] RDMA/rtrs-srv: Rename rtrs_srv to rtrs_srv_sess
2022-01-04 6:59 ` Guoqing Jiang
@ 2022-01-04 8:59 ` Vaishali Thakkar
0 siblings, 0 replies; 13+ messages in thread
From: Vaishali Thakkar @ 2022-01-04 8:59 UTC (permalink / raw)
To: Guoqing Jiang; +Cc: Jack Wang, linux-rdma, bvanassche, leon, jgg, haris.iqbal
On Tue, Jan 4, 2022 at 8:00 AM Guoqing Jiang <guoqing.jiang@linux.dev> wrote:
>
>
>
> On 1/3/22 9:33 PM, Jack Wang wrote:
> > diff --git a/drivers/block/rnbd/rnbd-srv.h b/drivers/block/rnbd/rnbd-srv.h
> > index 98ddc31eb408..e5604bce123a 100644
> > --- a/drivers/block/rnbd/rnbd-srv.h
> > +++ b/drivers/block/rnbd/rnbd-srv.h
> > @@ -20,7 +20,7 @@
> > struct rnbd_srv_session {
> > /* Entry inside global sess_list */
> > struct list_head list;
> > - struct rtrs_srv *rtrs;
> > + struct rtrs_srv_sess *rtrs;
>
> How about change it to srv_sess?
I've kept the variable names as it is if it didn't include incorrect
naming. e.g. naming path variables with sess/session. Struct
names in the last 2 patches are changed just to make a clear
distinction. Doing variable name changes will probably require
a lot more changes in the files and I'm not sure if it's worth the
effort.
> > char sessname[NAME_MAX];
> > int queue_depth;
> > struct bio_set sess_bio_set;
> > diff --git a/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c b/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c
> > index 628ef20ebf0c..b94ae12c2795 100644
> > --- a/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c
> > +++ b/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c
> > @@ -154,7 +154,7 @@ static const struct attribute_group rtrs_srv_stats_attr_group = {
> >
> > static int rtrs_srv_create_once_sysfs_root_folders(struct rtrs_srv_path *srv_path)
> > {
> > - struct rtrs_srv *srv = srv_path->srv;
> > + struct rtrs_srv_sess *srv = srv_path->srv;
>
> It is srv here, maybe srv_sess too, FYI.
>
> [ ... ]
>
> > diff --git a/drivers/infiniband/ulp/rtrs/rtrs-srv.h b/drivers/infiniband/ulp/rtrs/rtrs-srv.h
> > index 6119e6708080..6292e87f6afd 100644
> > --- a/drivers/infiniband/ulp/rtrs/rtrs-srv.h
> > +++ b/drivers/infiniband/ulp/rtrs/rtrs-srv.h
> > @@ -73,7 +73,7 @@ struct rtrs_srv_mr {
> >
> > struct rtrs_srv_path {
> > struct rtrs_path s;
> > - struct rtrs_srv *srv;
> > + struct rtrs_srv_sess *srv;
>
> Ditto.
>
> Thanks,
> Guoqing
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCHv2 for-next 3/5] RDMA/rtrs-clt: Rename rtrs_clt_sess to rtrs_clt_path
2022-01-04 6:52 ` Guoqing Jiang
@ 2022-01-04 9:15 ` Vaishali Thakkar
0 siblings, 0 replies; 13+ messages in thread
From: Vaishali Thakkar @ 2022-01-04 9:15 UTC (permalink / raw)
To: Guoqing Jiang; +Cc: Jack Wang, linux-rdma, bvanassche, leon, jgg, haris.iqbal
On Tue, Jan 4, 2022 at 7:52 AM Guoqing Jiang <guoqing.jiang@linux.dev> wrote:
>
>
Thanks for the reviews, Guoqing.
> On 1/3/22 9:33 PM, Jack Wang wrote:
>
> [ .. ]
>
> > -static int post_recv_sess(struct rtrs_clt_sess *sess)
> > +static int post_recv_path(struct rtrs_clt_path *clt_path)
>
> How about rename it to post_recv_clt_path to make it obviously if you
> has the same change to post_recv_sess in rtrs-srv.c?
>
> [ ... ]
>
> > @@ -1378,13 +1383,14 @@ static int alloc_sess_reqs(struct rtrs_clt_sess *sess)
> > if (!req->sge)
> > goto out;
> >
> > - req->mr = ib_alloc_mr(sess->s.dev->ib_pd, IB_MR_TYPE_MEM_REG,
> > - sess->max_pages_per_mr);
> > + req->mr = ib_alloc_mr(clt_path->s.dev->ib_pd,
> > + IB_MR_TYPE_MEM_REG,
> > + clt_path->max_pages_per_mr);
> > if (IS_ERR(req->mr)) {
> > err = PTR_ERR(req->mr);
> > req->mr = NULL;
> > pr_err("Failed to alloc sess->max_pages_per_mr %d\n",
>
> s/sess/clt_path/
Good catch.
> > - sess->max_pages_per_mr);
> > + clt_path->max_pages_per_mr);
> > goto out;
> > }
> >
>
> [ ... ]
>
> > -static int create_con(struct rtrs_clt_sess *sess, unsigned int cid)
> > +static int create_con(struct rtrs_clt_path *clt_path, unsigned int cid)
>
> Could you rename it to create_clt_con? Because the function name appears
> in both client and server.
I think renaming the functions with the same name on client and
server side should be a seperate patch/series as these patches
are only for fixing the incorrect naming.
> > {
> > struct rtrs_clt_con *con;
> >
> > @@ -1601,28 +1609,28 @@ static int create_con(struct rtrs_clt_sess *sess, unsigned int cid)
> > /* Map first two connections to the first CPU */
> > con->cpu = (cid ? cid - 1 : 0) % nr_cpu_ids;
> > con->c.cid = cid;
> > - con->c.path = &sess->s;
> > + con->c.path = &clt_path->s;
> > /* Align with srv, init as 1 */
> > atomic_set(&con->c.wr_cnt, 1);
> > mutex_init(&con->con_mutex);
> >
> > - sess->s.con[cid] = &con->c;
> > + clt_path->s.con[cid] = &con->c;
> >
> > return 0;
> > }
> >
>
> [ ... ]
>
> > -static inline bool xchg_sessions(struct rtrs_clt_sess __rcu **rcu_ppcpu_path,
> > - struct rtrs_clt_sess *sess,
> > - struct rtrs_clt_sess *next)
> > +static inline bool xchg_sessions(struct rtrs_clt_path __rcu **rcu_ppcpu_path,
> > + struct rtrs_clt_path *clt_path,
> > + struct rtrs_clt_path *next)
>
> Now, it is used to exchange paths instead of sessions, right?
>
> > {
> > - struct rtrs_clt_sess **ppcpu_path;
> > + struct rtrs_clt_path **ppcpu_path;
> >
> > /* Call cmpxchg() without sparse warnings */
> > ppcpu_path = (typeof(ppcpu_path))rcu_ppcpu_path;
> > - return sess == cmpxchg(ppcpu_path, sess, next);
> > + return clt_path == cmpxchg(ppcpu_path, clt_path, next);
> > }
>
> [ ... ]
>
> > @@ -2375,31 +2387,32 @@ static int init_conns(struct rtrs_clt_sess *sess)
> > static void rtrs_clt_info_req_done(struct ib_cq *cq, struct ib_wc *wc)
> > {
> > struct rtrs_clt_con *con = to_clt_con(wc->qp->qp_context);
> > - struct rtrs_clt_sess *sess = to_clt_sess(con->c.path);
> > + struct rtrs_clt_path *clt_path = to_clt_path(con->c.path);
> > struct rtrs_iu *iu;
> >
> > iu = container_of(wc->wr_cqe, struct rtrs_iu, cqe);
> > - rtrs_iu_free(iu, sess->s.dev->ib_dev, 1);
> > + rtrs_iu_free(iu, clt_path->s.dev->ib_dev, 1);
> >
> > if (wc->status != IB_WC_SUCCESS) {
> > - rtrs_err(sess->clt, "Sess info request send failed: %s\n",
> > + rtrs_err(clt_path->clt, "*Sess* info request send failed: %s\n",
>
> Path info, same as below.
>
> [ ... ]
>
> > if (wc->status != IB_WC_SUCCESS) {
> > - rtrs_err(sess->clt, "Sess info response recv failed: %s\n",
> > + rtrs_err(clt_path->clt, "Path info response recv failed: %s\n",
> > ib_wc_status_msg(wc->status));
> > goto out;
> > }
> > WARN_ON(wc->opcode != IB_WC_RECV);
> >
> > if (wc->byte_len < sizeof(*msg)) {
> > - rtrs_err(sess->clt, "Sess info response is malformed: size %d\n",
> > + rtrs_err(clt_path->clt, "Path info response is malformed: size %d\n",
> > wc->byte_len);
> > goto out;
> > }
>
> [ ... ]
>
> > @@ -2533,33 +2548,34 @@ static int rtrs_send_sess_info(struct rtrs_clt_sess *sess)
> > /* Prepare for getting info response */
> > err = rtrs_iu_post_recv(&usr_con->c, rx_iu);
> > if (err) {
> > - rtrs_err(sess->clt, "rtrs_iu_post_recv(), err: %d\n", err);
> > + rtrs_err(clt_path->clt, "rtrs_iu_post_recv(), err: %d\n", err);
> > goto out;
> > }
> > rx_iu = NULL;
> >
> > msg = tx_iu->buf;
> > msg->type = cpu_to_le16(RTRS_MSG_INFO_REQ);
> > - memcpy(msg->sessname, sess->s.sessname, sizeof(msg->sessname));
> > + memcpy(msg->sessname, clt_path->s.sessname, sizeof(msg->sessname));
>
> Pls check if it is pathname.
Will do. Actually sessname is correctly named at a bunch of places
so didn't require renaming. But I'll double check again.
Thanks for all other comments. Will address them in the next version
of a patchset.
> [ ... ]
>
>
> > /**
> > - * init_sess() - establishes all session connections and does handshake
> > - * @sess: client session.
> > + * init_pathi() - establishes all path connections and does handshake
>
> s/init_pathi/init_path, maybe it would be better to call it
> init_clt_path here.
>
> > + * @clt_path: client path.
> > * In case of error full close or reconnect procedure should be taken,
> > * because reconnect or close async works can be started.
> > */
> > -static int init_sess(struct rtrs_clt_sess *sess)
> > +static int init_path(struct rtrs_clt_path *clt_path)
>
> [ ... ]
>
> > - if (sess->reconnect_attempts >= clt->max_reconnect_attempts) {
> > + if (clt_path->reconnect_attempts >= clt->max_reconnect_attempts) {
> > /* Close a*session* completely if max attempts is reached */
>
> I guess it is close a path now.
>
> > - rtrs_clt_close_conns(sess, false);
> > + rtrs_clt_close_conns(clt_path, false);
> > return;
> > }
>
> [ ... ]
>
> Thanks,
> Guoqing
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCHv2 for-next 5/5] RDMA/rtrs-clt: Rename rtrs_clt to rtrs_clt_sess
2022-01-04 7:09 ` Guoqing Jiang
@ 2022-01-05 15:36 ` Vaishali Thakkar
0 siblings, 0 replies; 13+ messages in thread
From: Vaishali Thakkar @ 2022-01-05 15:36 UTC (permalink / raw)
To: Guoqing Jiang; +Cc: Jack Wang, linux-rdma, bvanassche, leon, jgg, haris.iqbal
On Tue, Jan 4, 2022 at 8:09 AM Guoqing Jiang <guoqing.jiang@linux.dev> wrote:
>
>
>
> On 1/3/22 9:33 PM, Jack Wang wrote:
> > From: Vaishali Thakkar<vaishali.thakkar@ionos.com>
> >
> > Structure rtrs_clt is used for sessions. So to
> > avoid confusions rename it to rtrs_clt_sess.
> >
> > Transformations are done with the help of
> > following coccinelle script.
> >
> > @@
> > @@
> > struct
> > - rtrs_clt
> > + rtrs_clt_sess
> >
> > Signed-off-by: Vaishali Thakkar<vaishali.thakkar@ionos.com>
> > Signed-off-by: Jack Wang<jinpu.wang@ionos.com>
> > ---
> > drivers/block/rnbd/rnbd-clt.c | 4 +-
> > drivers/block/rnbd/rnbd-clt.h | 2 +-
> > drivers/infiniband/ulp/rtrs/rtrs-clt-sysfs.c | 24 +++---
> > drivers/infiniband/ulp/rtrs/rtrs-clt.c | 78 ++++++++++----------
> > drivers/infiniband/ulp/rtrs/rtrs-clt.h | 19 ++---
> > drivers/infiniband/ulp/rtrs/rtrs.h | 21 +++---
> > 6 files changed, 77 insertions(+), 71 deletions(-)
> >
> > diff --git a/drivers/block/rnbd/rnbd-clt.c b/drivers/block/rnbd/rnbd-clt.c
> > index 2df0657cdf00..70bbbdb81db1 100644
> > --- a/drivers/block/rnbd/rnbd-clt.c
> > +++ b/drivers/block/rnbd/rnbd-clt.c
> > @@ -433,7 +433,7 @@ static void msg_conf(void *priv, int errno)
> > schedule_work(&iu->work);
> > }
> >
> > -static int send_usr_msg(struct rtrs_clt *rtrs, int dir,
> > +static int send_usr_msg(struct rtrs_clt_sess *rtrs, int dir,
> > struct rnbd_iu *iu, struct kvec *vec,
> > size_t len, struct scatterlist *sg, unsigned int sg_len,
> > void (*conf)(struct work_struct *work),
> > @@ -1010,7 +1010,7 @@ static int rnbd_client_xfer_request(struct rnbd_clt_dev *dev,
> > struct request *rq,
> > struct rnbd_iu *iu)
> > {
> > - struct rtrs_clt *rtrs = dev->sess->rtrs;
> > + struct rtrs_clt_sess *rtrs = dev->sess->rtrs;
> > struct rtrs_permit *permit = iu->permit;
> > struct rnbd_msg_io msg;
> > struct rtrs_clt_req_ops req_ops;
> > diff --git a/drivers/block/rnbd/rnbd-clt.h b/drivers/block/rnbd/rnbd-clt.h
> > index 9ef8c4f306f2..0c2cae7f39b9 100644
> > --- a/drivers/block/rnbd/rnbd-clt.h
> > +++ b/drivers/block/rnbd/rnbd-clt.h
> > @@ -75,7 +75,7 @@ struct rnbd_cpu_qlist {
> >
> > struct rnbd_clt_session {
> > struct list_head list;
> > - struct rtrs_clt *rtrs;
> > + struct rtrs_clt_sess *rtrs;
>
> While at it, how about change it to clt_sess? Otherwise there is symbol name
> pollution between rnbd_clt_session and rnbd_srv_session.
>
> [ ...]
>
> > /*
> > @@ -743,7 +744,7 @@ static int post_recv_path(struct rtrs_clt_path *clt_path)
> > struct path_it {
> > int i;
> > struct list_head skip_list;
> > - struct rtrs_clt *clt;
> > + struct rtrs_clt_sess *clt;
>
> To align with the change of type, s/clt/clt_sess? If so, it applies to
> others as well.
>
> [ ... ]
>
> > --- a/drivers/infiniband/ulp/rtrs/rtrs-clt.h
> > +++ b/drivers/infiniband/ulp/rtrs/rtrs-clt.h
> > @@ -126,7 +126,7 @@ struct rtrs_rbuf {
> >
> > struct rtrs_clt_path {
> > struct rtrs_path s;
> > - struct rtrs_clt *clt;
> > + struct rtrs_clt_sess **clt*;
>
> Ditto.
>
> [ ... ]
>
> > -struct rtrs_clt *rtrs_clt_open(struct rtrs_clt_ops *ops,
> > +struct rtrs_clt_sess *rtrs_clt_open(struct rtrs_clt_ops *ops,
> > const char *pathname,
> > const struct rtrs_addr *paths,
> > size_t path_cnt, u16 port,
> > size_t pdu_sz, u8 reconnect_delay_sec,
> > s16 max_reconnect_attempts, u32 nr_poll_queues);
> >
> > -void rtrs_clt_close(struct rtrs_clt *clt_path);
> > +void rtrs_clt_close(struct rtrs_clt_sess *clt_path);
>
> void rtrs_clt_close(struct rtrs_clt_sess *clt_sess);
>
> or
>
> void rtrs_clt_close(struct rtrs_clt_path *clt_path);
Good catch. Actually this should be
void rtrs_clt_close(struct rtrs_clt_sess *clt);
>
> Maybe rename those functions to rtrs_clt_session_{open,close} to resolve
> the ambiguous
> completely, or we can live with current name I am not sure.
For this series, I think we can live with the current name. :)
> BTW, I suppose the series deserve beer from Danil 😉
:)
> Thanks,
> Guoqing
>
^ permalink raw reply [flat|nested] 13+ messages in thread
end of thread, other threads:[~2022-01-05 15:36 UTC | newest]
Thread overview: 13+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-01-03 13:33 [PATCHv2 for-next 0/5] RTRS renaming Jack Wang
2022-01-03 13:33 ` [PATCHv2 for-next 1/5] RDMA/rtrs: Rename rtrs_sess to rtrs_path Jack Wang
2022-01-03 13:33 ` [PATCHv2 for-next 2/5] RDMA/rtrs-srv: Rename rtrs_srv_sess to rtrs_srv_path Jack Wang
2022-01-04 6:50 ` Guoqing Jiang
2022-01-03 13:33 ` [PATCHv2 for-next 3/5] RDMA/rtrs-clt: Rename rtrs_clt_sess to rtrs_clt_path Jack Wang
2022-01-04 6:52 ` Guoqing Jiang
2022-01-04 9:15 ` Vaishali Thakkar
2022-01-03 13:33 ` [PATCHv2 for-next 4/5] RDMA/rtrs-srv: Rename rtrs_srv to rtrs_srv_sess Jack Wang
2022-01-04 6:59 ` Guoqing Jiang
2022-01-04 8:59 ` Vaishali Thakkar
2022-01-03 13:33 ` [PATCHv2 for-next 5/5] RDMA/rtrs-clt: Rename rtrs_clt to rtrs_clt_sess Jack Wang
2022-01-04 7:09 ` Guoqing Jiang
2022-01-05 15:36 ` Vaishali Thakkar
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