* [PATCH for-next 6/6] IB/mlx5: Add Raw Packet Queue Pair (QP) support
@ 2015-12-10 20:09 Majd Dibbiny
[not found] ` <1449778184-10618-1-git-send-email-majd-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
0 siblings, 1 reply; 2+ messages in thread
From: Majd Dibbiny @ 2015-12-10 20:09 UTC (permalink / raw)
To: eli-VPRAkNaXOzVWk0Htik3J/w
Cc: dledford-H+wXaHxf7aLQT0dZR+AlfA,
linux-rdma-u79uwXL29TY76Z2rM5mHXA, achiad-VPRAkNaXOzVWk0Htik3J/w,
matanb-VPRAkNaXOzVWk0Htik3J/w, Majd Dibbiny
This patchs adds support for Raw Packet QP for the mlx5 device.
Raw Packet QP, unlike other QP types, has no matching mlx5_core_qp
object but rather it is built of RQ/SQ/TIR/TIS/TD mlx5_core object.
The Raw Packet QP state changes are implemented by changing the
state of the sub-objects.
Since the SQ and RQ work-queue (WQ) buffers are not contiguous like
other QPs, we allocate separate buffers in the user-space and pass
the address of each one of them separately to the kernel.
Signed-off-by: Majd Dibbiny <majd-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
---
drivers/infiniband/hw/mlx5/main.c | 15 +-
drivers/infiniband/hw/mlx5/mlx5_ib.h | 52 +-
drivers/infiniband/hw/mlx5/qp.c | 894 ++++++++++++++++++---
drivers/infiniband/hw/mlx5/user.h | 1 +
drivers/net/ethernet/mellanox/mlx5/core/qp.c | 48 +-
drivers/net/ethernet/mellanox/mlx5/core/transobj.c | 39 +
include/linux/mlx5/mlx5_ifc.h | 11 +-
include/linux/mlx5/qp.h | 3 +-
include/linux/mlx5/transobj.h | 4 +
9 files changed, 913 insertions(+), 154 deletions(-)
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index 1b503e0..de533b9 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -680,6 +680,12 @@ static struct ib_ucontext *mlx5_ib_alloc_ucontext(struct ib_device *ibdev,
context->ibucontext.invalidate_range = &mlx5_ib_invalidate_range;
#endif
+ if (MLX5_CAP_GEN(dev->mdev, log_max_transport_domain)) {
+ err = mlx5_alloc_transport_domain(dev->mdev, &context->tdn);
+ if (err)
+ goto out_uars;
+ }
+
INIT_LIST_HEAD(&context->db_page_list);
mutex_init(&context->db_page_mutex);
@@ -688,7 +694,7 @@ static struct ib_ucontext *mlx5_ib_alloc_ucontext(struct ib_device *ibdev,
err = ib_copy_to_udata(udata, &resp,
min(sizeof(resp), udata->outlen));
if (err)
- goto out_uars;
+ goto out_td;
uuari->ver = ver;
uuari->num_low_latency_uuars = req.num_low_latency_uuars;
@@ -696,6 +702,10 @@ static struct ib_ucontext *mlx5_ib_alloc_ucontext(struct ib_device *ibdev,
uuari->num_uars = num_uars;
return &context->ibucontext;
+out_td:
+ if (MLX5_CAP_GEN(dev->mdev, log_max_transport_domain))
+ mlx5_dealloc_transport_domain(dev->mdev, context->tdn);
+
out_uars:
for (i--; i >= 0; i--)
mlx5_cmd_free_uar(dev->mdev, uars[i].index);
@@ -720,6 +730,9 @@ static int mlx5_ib_dealloc_ucontext(struct ib_ucontext *ibcontext)
struct mlx5_uuar_info *uuari = &context->uuari;
int i;
+ if (MLX5_CAP_GEN(dev->mdev, log_max_transport_domain))
+ mlx5_dealloc_transport_domain(dev->mdev, context->tdn);
+
for (i = 0; i < uuari->num_uars; i++) {
if (mlx5_cmd_free_uar(dev->mdev, uuari->uars[i].index))
mlx5_ib_warn(dev, "failed to free UAR 0x%x\n", uuari->uars[i].index);
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h
index e1c46c6..dbdf331 100644
--- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
+++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
@@ -42,6 +42,7 @@
#include <linux/mlx5/qp.h>
#include <linux/mlx5/srq.h>
#include <linux/types.h>
+#include <linux/mlx5/transobj.h>
#define mlx5_ib_dbg(dev, format, arg...) \
pr_debug("%s:%s:%d:(pid %d): " format, (dev)->ib_dev.name, __func__, \
@@ -95,6 +96,8 @@ struct mlx5_ib_ucontext {
*/
struct mutex db_page_mutex;
struct mlx5_uuar_info uuari;
+ /* Transport Domain number */
+ u32 tdn;
};
static inline struct mlx5_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext)
@@ -173,23 +176,52 @@ struct mlx5_ib_pfault {
struct mlx5_pagefault mpfault;
};
+struct mlx5_ib_ubuffer {
+ struct ib_umem *umem;
+ int buf_size;
+ u64 buf_addr;
+};
+
+struct mlx5_ib_rq {
+ struct mlx5_ib_wq *rq;
+ struct mlx5_core_qp mrq;
+ struct mlx5_ib_ubuffer ubuffer;
+ struct mlx5_db *doorbell;
+ u32 tirn;
+ u8 state;
+};
+
+struct mlx5_ib_sq {
+ struct mlx5_ib_wq *sq;
+ struct mlx5_core_qp msq;
+ struct mlx5_ib_ubuffer ubuffer;
+ struct mlx5_db *doorbell;
+ u32 tisn;
+ u8 state;
+};
+
+struct mlx5_ib_raw_packet_qp {
+ struct mlx5_ib_sq sq;
+ struct mlx5_ib_rq rq;
+};
+
struct mlx5_ib_qp {
struct ib_qp ibqp;
- struct mlx5_core_qp mqp;
- struct mlx5_buf buf;
+ union {
+ struct mlx5_core_qp mqp;
+ struct mlx5_ib_raw_packet_qp raw_packet_qp;
+ };
- struct mlx5_db db;
struct mlx5_ib_wq rq;
+ struct mlx5_ib_wq sq;
+
+ struct mlx5_buf buf;
+ struct mlx5_db db;
+
+ struct mlx5_ib_ubuffer ubuffer;
- u32 doorbell_qpn;
u8 sq_signal_bits;
u8 fm_cache;
- int sq_max_wqes_per_wr;
- int sq_spare_wqes;
- struct mlx5_ib_wq sq;
-
- struct ib_umem *umem;
- int buf_size;
/* serialize qp state modifications
*/
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index e0be8b3..a590e47 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -55,6 +55,13 @@ enum {
MLX5_IB_CACHE_LINE_SIZE = 64,
};
+enum {
+ MLX5_RQ_NUM_STATE = MLX5_RQC_STATE_ERR + 1,
+ MLX5_SQ_NUM_STATE = MLX5_SQC_STATE_ERR + 1,
+ MLX5_QP_STATE = MLX5_QP_NUM_STATE + 1,
+ MLX5_QP_STATE_BAD = MLX5_QP_STATE + 1,
+};
+
static const u32 mlx5_ib_opcode[] = {
[IB_WR_SEND] = MLX5_OPCODE_SEND,
[IB_WR_SEND_WITH_IMM] = MLX5_OPCODE_SEND_IMM,
@@ -122,7 +129,7 @@ int mlx5_ib_read_user_wqe(struct mlx5_ib_qp *qp, int send, int wqe_index,
struct mlx5_ib_wq *wq = send ? &qp->sq : &qp->rq;
size_t offset;
size_t wq_end;
- struct ib_umem *umem = qp->umem;
+ struct ib_umem *umem = qp->ubuffer.umem;
u32 first_copy_length;
int wqe_length;
int ret;
@@ -367,7 +374,8 @@ static int calc_sq_size(struct mlx5_ib_dev *dev, struct ib_qp_init_attr *attr,
static int set_user_buf_size(struct mlx5_ib_dev *dev,
struct mlx5_ib_qp *qp,
- struct mlx5_ib_create_qp *ucmd)
+ struct mlx5_ib_create_qp *ucmd,
+ struct ib_qp_init_attr *attr)
{
int desc_sz = 1 << qp->sq.wqe_shift;
@@ -392,8 +400,14 @@ static int set_user_buf_size(struct mlx5_ib_dev *dev,
return -EINVAL;
}
- qp->buf_size = (qp->rq.wqe_cnt << qp->rq.wqe_shift) +
- (qp->sq.wqe_cnt << 6);
+ if (attr->qp_type == IB_QPT_RAW_PACKET) {
+ qp->ubuffer.buf_size = qp->rq.wqe_cnt << qp->rq.wqe_shift;
+ qp->raw_packet_qp.sq.ubuffer.buf_size = qp->sq.wqe_cnt << 6;
+ } else {
+ qp->ubuffer.buf_size = (qp->rq.wqe_cnt << qp->rq.wqe_shift) +
+ (qp->sq.wqe_cnt << 6);
+ qp->raw_packet_qp.sq.ubuffer.buf_size = 0;
+ }
return 0;
}
@@ -579,8 +593,8 @@ static int to_mlx5_st(enum ib_qp_type type)
case IB_QPT_SMI: return MLX5_QP_ST_QP0;
case IB_QPT_GSI: return MLX5_QP_ST_QP1;
case IB_QPT_RAW_IPV6: return MLX5_QP_ST_RAW_IPV6;
- case IB_QPT_RAW_ETHERTYPE: return MLX5_QP_ST_RAW_ETHERTYPE;
case IB_QPT_RAW_PACKET:
+ case IB_QPT_RAW_ETHERTYPE: return MLX5_QP_ST_RAW_ETHERTYPE;
case IB_QPT_MAX:
default: return -EINVAL;
}
@@ -593,11 +607,13 @@ static int uuarn_to_uar_index(struct mlx5_uuar_info *uuari, int uuarn)
static int create_user_qp(struct mlx5_ib_dev *dev, struct ib_pd *pd,
struct mlx5_ib_qp *qp, struct ib_udata *udata,
+ struct ib_qp_init_attr *attr,
struct mlx5_create_qp_mbox_in **in,
struct mlx5_ib_create_qp_resp *resp, int *inlen)
{
struct mlx5_ib_ucontext *context;
struct mlx5_ib_create_qp ucmd;
+ struct mlx5_ib_ubuffer *ubuffer = &qp->ubuffer;
int page_shift = 0;
int uar_index;
int npages;
@@ -639,32 +655,35 @@ static int create_user_qp(struct mlx5_ib_dev *dev, struct ib_pd *pd,
qp->sq.wqe_shift = ilog2(MLX5_SEND_WQE_BB);
qp->sq.offset = qp->rq.wqe_cnt << qp->rq.wqe_shift;
- err = set_user_buf_size(dev, qp, &ucmd);
+ err = set_user_buf_size(dev, qp, &ucmd, attr);
if (err)
goto err_uuar;
- if (ucmd.buf_addr && qp->buf_size) {
- qp->umem = ib_umem_get(pd->uobject->context, ucmd.buf_addr,
- qp->buf_size, 0, 0);
- if (IS_ERR(qp->umem)) {
+ if (ucmd.buf_addr && ubuffer->buf_size) {
+ ubuffer->buf_addr = ucmd.buf_addr;
+ qp->ubuffer.umem = ib_umem_get(pd->uobject->context,
+ ucmd.buf_addr, ubuffer->buf_size,
+ 0, 0);
+ if (IS_ERR(qp->ubuffer.umem)) {
mlx5_ib_dbg(dev, "umem_get failed\n");
- err = PTR_ERR(qp->umem);
+ err = PTR_ERR(qp->ubuffer.umem);
goto err_uuar;
}
} else {
- qp->umem = NULL;
+ qp->ubuffer.umem = NULL;
}
- if (qp->umem) {
- mlx5_ib_cont_pages(qp->umem, ucmd.buf_addr, &npages, &page_shift,
- &ncont, NULL);
+ if (qp->ubuffer.umem) {
+ mlx5_ib_cont_pages(qp->ubuffer.umem, ucmd.buf_addr, &npages,
+ &page_shift, &ncont, NULL);
err = mlx5_ib_get_buf_offset(ucmd.buf_addr, page_shift, &offset);
if (err) {
mlx5_ib_warn(dev, "bad offset\n");
goto err_umem;
}
mlx5_ib_dbg(dev, "addr 0x%llx, size %d, npages %d, page_shift %d, ncont %d, offset %d\n",
- ucmd.buf_addr, qp->buf_size, npages, page_shift, ncont, offset);
+ ucmd.buf_addr, ubuffer->buf_size, npages,
+ page_shift, ncont, offset);
}
*inlen = sizeof(**in) + sizeof(*(*in)->pas) * ncont;
@@ -673,8 +692,9 @@ static int create_user_qp(struct mlx5_ib_dev *dev, struct ib_pd *pd,
err = -ENOMEM;
goto err_umem;
}
- if (qp->umem)
- mlx5_ib_populate_pas(dev, qp->umem, page_shift, (*in)->pas, 0);
+ if (qp->ubuffer.umem)
+ mlx5_ib_populate_pas(dev, qp->ubuffer.umem, page_shift,
+ (*in)->pas, 0);
(*in)->ctx.log_pg_sz_remote_qpn =
cpu_to_be32((page_shift - MLX5_ADAPTER_PAGE_SHIFT) << 24);
(*in)->ctx.params2 = cpu_to_be32(offset << 6);
@@ -705,8 +725,8 @@ err_free:
kvfree(*in);
err_umem:
- if (qp->umem)
- ib_umem_release(qp->umem);
+ if (qp->ubuffer.umem)
+ ib_umem_release(qp->ubuffer.umem);
err_uuar:
free_uuar(&context->uuari, uuarn);
@@ -719,8 +739,8 @@ static void destroy_qp_user(struct ib_pd *pd, struct mlx5_ib_qp *qp)
context = to_mucontext(pd->uobject->context);
mlx5_ib_db_unmap_user(context, &qp->db);
- if (qp->umem)
- ib_umem_release(qp->umem);
+ if (qp->ubuffer.umem)
+ ib_umem_release(qp->ubuffer.umem);
free_uuar(&context->uuari, qp->uuarn);
}
@@ -759,9 +779,9 @@ static int create_kernel_qp(struct mlx5_ib_dev *dev,
qp->rq.offset = 0;
qp->sq.offset = qp->rq.wqe_cnt << qp->rq.wqe_shift;
- qp->buf_size = err + (qp->rq.wqe_cnt << qp->rq.wqe_shift);
+ qp->ubuffer.buf_size = err + (qp->rq.wqe_cnt << qp->rq.wqe_shift);
- err = mlx5_buf_alloc(dev->mdev, qp->buf_size, &qp->buf);
+ err = mlx5_buf_alloc(dev->mdev, qp->ubuffer.buf_size, &qp->buf);
if (err) {
mlx5_ib_dbg(dev, "err %d\n", err);
goto err_uuar;
@@ -854,6 +874,293 @@ static int is_connected(enum ib_qp_type qp_type)
return 0;
}
+static int create_raw_packet_qp_tis(struct mlx5_ib_dev *dev,
+ struct mlx5_ib_sq *sq, u32 tdn)
+{
+ u32 in[MLX5_ST_SZ_DW(create_tis_in)];
+ void *tisc = MLX5_ADDR_OF(create_tis_in, in, ctx);
+
+ memset(in, 0, sizeof(in));
+
+ MLX5_SET(tisc, tisc, transport_domain, tdn);
+
+ return mlx5_core_create_tis(dev->mdev, in, sizeof(in), &sq->tisn);
+}
+
+static void destroy_raw_packet_qp_tis(struct mlx5_ib_dev *dev,
+ struct mlx5_ib_sq *sq)
+{
+ mlx5_core_destroy_tis(dev->mdev, sq->tisn);
+}
+
+static int create_raw_packet_qp_sq(struct mlx5_ib_dev *dev,
+ struct mlx5_ib_sq *sq, void *qpin,
+ struct ib_pd *pd)
+{
+ struct mlx5_ib_ubuffer *ubuffer = &sq->ubuffer;
+ __be64 *pas;
+ void *in;
+ void *sqc;
+ void *qpc = MLX5_ADDR_OF(create_qp_in, qpin, qpc);
+ void *wq;
+ int inlen;
+ int err;
+ int page_shift = 0;
+ int npages;
+ int ncont = 0;
+ u32 offset = 0;
+
+ sq->ubuffer.umem = ib_umem_get(pd->uobject->context, ubuffer->buf_addr,
+ ubuffer->buf_size, 0, 0);
+ if (IS_ERR(sq->ubuffer.umem)) {
+ mlx5_ib_dbg(dev, "umem_get failed\n");
+ sq->ubuffer.umem = NULL;
+ return -ENOMEM;
+ }
+
+ mlx5_ib_cont_pages(sq->ubuffer.umem, ubuffer->buf_addr, &npages,
+ &page_shift, &ncont, NULL);
+ err = mlx5_ib_get_buf_offset(ubuffer->buf_addr, page_shift, &offset);
+ if (err) {
+ mlx5_ib_warn(dev, "SQ bad offset\n");
+ err = -EINVAL;
+ goto err_umem;
+ }
+
+ mlx5_ib_dbg(dev, "addr 0x%llx, size %d, npages %d, page_shift %d, ncont %d, offset %d\n",
+ ubuffer->buf_addr, ubuffer->buf_size, npages,
+ page_shift, ncont, offset);
+
+ inlen = MLX5_ST_SZ_BYTES(create_sq_in) + sizeof(u64) * ncont;
+ in = mlx5_vzalloc(inlen);
+ if (!in) {
+ err = -ENOMEM;
+ goto err_umem;
+ }
+
+ sqc = MLX5_ADDR_OF(create_sq_in, in, ctx);
+ MLX5_SET(sqc, sqc, flush_in_error_en, 1);
+ MLX5_SET(sqc, sqc, state, MLX5_SQC_STATE_RST);
+ MLX5_SET(sqc, sqc, user_index, MLX5_GET(qpc, qpc, user_index));
+ MLX5_SET(sqc, sqc, cqn, MLX5_GET(qpc, qpc, cqn_snd));
+ MLX5_SET(sqc, sqc, tis_lst_sz, 1);
+ MLX5_SET(sqc, sqc, tis_num_0, sq->tisn);
+
+ wq = MLX5_ADDR_OF(sqc, sqc, wq);
+ MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_CYCLIC);
+ MLX5_SET(wq, wq, pd, MLX5_GET(qpc, qpc, pd));
+ MLX5_SET(wq, wq, uar_page, MLX5_GET(qpc, qpc, uar_page));
+ MLX5_SET64(wq, wq, dbr_addr, MLX5_GET64(qpc, qpc, dbr_addr));
+ MLX5_SET(wq, wq, log_wq_stride, ilog2(MLX5_SEND_WQE_BB));
+ MLX5_SET(wq, wq, log_wq_sz, MLX5_GET(qpc, qpc, log_sq_size));
+ MLX5_SET(wq, wq, log_wq_pg_sz, page_shift - MLX5_ADAPTER_PAGE_SHIFT);
+ MLX5_SET(wq, wq, page_offset, offset);
+
+ pas = (__be64 *)MLX5_ADDR_OF(wq, wq, pas);
+ mlx5_ib_populate_pas(dev, sq->ubuffer.umem, page_shift, pas, 0);
+
+ err = mlx5_core_create_sq_tracked(dev->mdev, in, inlen, &sq->msq);
+
+ kvfree(in);
+
+ if (err)
+ goto err_umem;
+
+ return 0;
+
+err_umem:
+ ib_umem_release(sq->ubuffer.umem);
+ sq->ubuffer.umem = NULL;
+
+ return err;
+}
+
+static void destroy_raw_packet_qp_sq(struct mlx5_ib_dev *dev,
+ struct mlx5_ib_sq *sq)
+{
+ mlx5_core_destroy_sq_tracked(dev->mdev, &sq->msq);
+ if (sq->ubuffer.umem)
+ ib_umem_release(sq->ubuffer.umem);
+}
+
+static int get_rq_pas_size(void *qpc)
+{
+ u32 log_page_size = MLX5_GET(qpc, qpc, log_page_size) + 12;
+ u32 log_rq_stride = MLX5_GET(qpc, qpc, log_rq_stride);
+ u32 log_rq_size = MLX5_GET(qpc, qpc, log_rq_size);
+ u32 page_offset = MLX5_GET(qpc, qpc, page_offset);
+ u32 po_quanta = 1 << (log_page_size - 6);
+ u32 rq_sz = 1 << (log_rq_size + 4 + log_rq_stride);
+ u32 page_size = 1 << log_page_size;
+ u32 rq_sz_po = rq_sz + (page_offset * po_quanta);
+ u32 rq_num_pas = (rq_sz_po + page_size - 1) / page_size;
+
+ return rq_num_pas * sizeof(u64);
+}
+
+static int create_raw_packet_qp_rq(struct mlx5_ib_dev *dev,
+ struct mlx5_ib_rq *rq, void *qpin)
+{
+ __be64 *pas;
+ __be64 *qp_pas;
+ void *in;
+ void *rqc;
+ void *wq;
+ void *qpc = MLX5_ADDR_OF(create_qp_in, qpin, qpc);
+ int inlen;
+ int err;
+ u32 rq_pas_size = get_rq_pas_size(qpc);
+
+ inlen = MLX5_ST_SZ_BYTES(create_rq_in) + rq_pas_size;
+ in = mlx5_vzalloc(inlen);
+ if (!in)
+ return -ENOMEM;
+
+ rqc = MLX5_ADDR_OF(create_rq_in, in, ctx);
+ MLX5_SET(rqc, rqc, vsd, 1);
+ MLX5_SET(rqc, rqc, mem_rq_type, MLX5_RQC_MEM_RQ_TYPE_MEMORY_RQ_INLINE);
+ MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RST);
+ MLX5_SET(rqc, rqc, flush_in_error_en, 1);
+ MLX5_SET(rqc, rqc, user_index, MLX5_GET(qpc, qpc, user_index));
+ MLX5_SET(rqc, rqc, cqn, MLX5_GET(qpc, qpc, cqn_rcv));
+
+ wq = MLX5_ADDR_OF(rqc, rqc, wq);
+ MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_CYCLIC);
+ MLX5_SET(wq, wq, end_padding_mode, MLX5_WQ_END_PAD_MODE_ALIGN);
+ MLX5_SET(wq, wq, page_offset, MLX5_GET(qpc, qpc, page_offset));
+ MLX5_SET(wq, wq, pd, MLX5_GET(qpc, qpc, pd));
+ MLX5_SET64(wq, wq, dbr_addr, MLX5_GET64(qpc, qpc, dbr_addr));
+ MLX5_SET(wq, wq, log_wq_stride, MLX5_GET(qpc, qpc, log_rq_stride) + 4);
+ MLX5_SET(wq, wq, log_wq_pg_sz, MLX5_GET(qpc, qpc, log_page_size));
+ MLX5_SET(wq, wq, log_wq_sz, MLX5_GET(qpc, qpc, log_rq_size));
+
+ pas = (__be64 *)MLX5_ADDR_OF(wq, wq, pas);
+ qp_pas = (__be64 *)MLX5_ADDR_OF(create_qp_in, qpin, pas);
+ memcpy(pas, qp_pas, rq_pas_size);
+
+ err = mlx5_core_create_rq_tracked(dev->mdev, in, inlen, &rq->mrq);
+
+ kvfree(in);
+
+ return err;
+}
+
+static void destroy_raw_packet_qp_rq(struct mlx5_ib_dev *dev,
+ struct mlx5_ib_rq *rq)
+{
+ mlx5_core_destroy_rq_tracked(dev->mdev, &rq->mrq);
+}
+
+static int create_raw_packet_qp_tir(struct mlx5_ib_dev *dev,
+ struct mlx5_ib_rq *rq, u32 tdn)
+{
+ u32 *in;
+ void *tirc;
+ int inlen;
+ int err;
+
+ inlen = MLX5_ST_SZ_BYTES(create_tir_in);
+ in = mlx5_vzalloc(inlen);
+ if (!in)
+ return -ENOMEM;
+
+ tirc = MLX5_ADDR_OF(create_tir_in, in, ctx);
+ MLX5_SET(tirc, tirc, disp_type, MLX5_TIRC_DISP_TYPE_DIRECT);
+ MLX5_SET(tirc, tirc, inline_rqn, rq->mrq.qpn);
+ MLX5_SET(tirc, tirc, transport_domain, tdn);
+
+ err = mlx5_core_create_tir(dev->mdev, in, inlen, &rq->tirn);
+
+ kvfree(in);
+
+ return err;
+}
+
+static void destroy_raw_packet_qp_tir(struct mlx5_ib_dev *dev,
+ struct mlx5_ib_rq *rq)
+{
+ mlx5_core_destroy_tir(dev->mdev, rq->tirn);
+}
+
+static int create_raw_packet_qp(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp,
+ struct mlx5_create_qp_mbox_in *in,
+ struct ib_pd *pd)
+{
+ struct mlx5_ib_raw_packet_qp *raw_packet_qp = &qp->raw_packet_qp;
+ struct mlx5_ib_sq *sq = &raw_packet_qp->sq;
+ struct mlx5_ib_rq *rq = &raw_packet_qp->rq;
+ struct ib_uobject *uobj = pd->uobject;
+ struct ib_ucontext *ucontext = uobj->context;
+ struct mlx5_ib_ucontext *mucontext = to_mucontext(ucontext);
+ int err;
+ u32 tdn = mucontext->tdn;
+
+ if (qp->sq.wqe_cnt) {
+ err = create_raw_packet_qp_tis(dev, sq, tdn);
+ if (err)
+ return err;
+
+ err = create_raw_packet_qp_sq(dev, sq, in, pd);
+ if (err)
+ goto err_destroy_tis;
+ }
+
+ if (qp->rq.wqe_cnt) {
+ err = create_raw_packet_qp_rq(dev, rq, in);
+ if (err)
+ goto err_destroy_sq;
+
+ err = create_raw_packet_qp_tir(dev, rq, tdn);
+ if (err)
+ goto err_destroy_rq;
+ }
+
+ qp->mqp.qpn = qp->sq.wqe_cnt ? sq->msq.qpn : rq->mrq.qpn;
+
+ return 0;
+
+err_destroy_rq:
+ destroy_raw_packet_qp_rq(dev, rq);
+err_destroy_sq:
+ if (!qp->sq.wqe_cnt)
+ return err;
+ destroy_raw_packet_qp_sq(dev, sq);
+err_destroy_tis:
+ destroy_raw_packet_qp_tis(dev, sq);
+
+ return err;
+}
+
+static void destroy_raw_packet_qp(struct mlx5_ib_dev *dev,
+ struct mlx5_ib_qp *qp)
+{
+ struct mlx5_ib_raw_packet_qp *raw_packet_qp = &qp->raw_packet_qp;
+ struct mlx5_ib_sq *sq = &raw_packet_qp->sq;
+ struct mlx5_ib_rq *rq = &raw_packet_qp->rq;
+
+ if (qp->rq.wqe_cnt) {
+ destroy_raw_packet_qp_tir(dev, rq);
+ destroy_raw_packet_qp_rq(dev, rq);
+ }
+
+ if (qp->sq.wqe_cnt) {
+ destroy_raw_packet_qp_sq(dev, sq);
+ destroy_raw_packet_qp_tis(dev, sq);
+ }
+}
+
+static void raw_packet_qp_copy_info(struct mlx5_ib_qp *qp,
+ struct mlx5_ib_raw_packet_qp *raw_packet_qp)
+{
+ struct mlx5_ib_sq *sq = &raw_packet_qp->sq;
+ struct mlx5_ib_rq *rq = &raw_packet_qp->rq;
+
+ sq->sq = &qp->sq;
+ rq->rq = &qp->rq;
+ sq->doorbell = &qp->db;
+ rq->doorbell = &qp->db;
+}
+
static int create_qp_common(struct mlx5_ib_dev *dev, struct ib_pd *pd,
struct ib_qp_init_attr *init_attr,
struct ib_udata *udata, struct mlx5_ib_qp *qp)
@@ -927,7 +1234,8 @@ static int create_qp_common(struct mlx5_ib_dev *dev, struct ib_pd *pd,
ucmd.sq_wqe_count, max_wqes);
return -EINVAL;
}
- err = create_user_qp(dev, pd, qp, udata, &in, &resp, &inlen);
+ err = create_user_qp(dev, pd, qp, udata, init_attr, &in,
+ &resp, &inlen);
if (err)
mlx5_ib_dbg(dev, "err %d\n", err);
} else {
@@ -1033,18 +1341,20 @@ static int create_qp_common(struct mlx5_ib_dev *dev, struct ib_pd *pd,
MLX5_SET(qpc, qpc, user_index, uidx);
}
- err = mlx5_core_create_qp(dev->mdev, &qp->mqp, in, inlen);
+ if (init_attr->qp_type == IB_QPT_RAW_PACKET) {
+ qp->raw_packet_qp.sq.ubuffer.buf_addr = ucmd.sq_buf_addr;
+ raw_packet_qp_copy_info(qp, &qp->raw_packet_qp);
+ err = create_raw_packet_qp(dev, qp, in, pd);
+ } else {
+ err = mlx5_core_create_qp(dev->mdev, &qp->mqp, in, inlen);
+ }
+
if (err) {
mlx5_ib_dbg(dev, "create qp failed\n");
goto err_create;
}
kvfree(in);
- /* Hardware wants QPN written in big-endian order (after
- * shifting) for send doorbell. Precompute this value to save
- * a little bit when posting sends.
- */
- qp->doorbell_qpn = swab32(qp->mqp.qpn << 8);
qp->mqp.event = mlx5_ib_qp_event;
@@ -1144,11 +1454,11 @@ static void get_cqs(struct mlx5_ib_qp *qp,
case IB_QPT_UD:
case IB_QPT_RAW_IPV6:
case IB_QPT_RAW_ETHERTYPE:
+ case IB_QPT_RAW_PACKET:
*send_cq = to_mcq(qp->ibqp.send_cq);
*recv_cq = to_mcq(qp->ibqp.recv_cq);
break;
- case IB_QPT_RAW_PACKET:
case IB_QPT_MAX:
default:
*send_cq = NULL;
@@ -1157,6 +1467,9 @@ static void get_cqs(struct mlx5_ib_qp *qp,
}
}
+static int modify_raw_packet_qp(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp,
+ u16 operation);
+
static void destroy_qp_common(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp)
{
struct mlx5_ib_cq *send_cq, *recv_cq;
@@ -1169,9 +1482,16 @@ static void destroy_qp_common(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp)
if (qp->state != IB_QPS_RESET) {
mlx5_ib_qp_disable_pagefaults(qp);
- if (mlx5_core_qp_modify(dev->mdev, to_mlx5_state(qp->state),
- MLX5_QP_STATE_RST, in, 0, &qp->mqp))
- mlx5_ib_warn(dev, "mlx5_ib: modify QP %06x to RESET failed\n",
+ if (qp->ibqp.qp_type != IB_QPT_RAW_PACKET) {
+ err = mlx5_core_qp_modify(dev->mdev,
+ MLX5_CMD_OP_2RST_QP, in, 0,
+ &qp->mqp);
+ } else {
+ err = modify_raw_packet_qp(dev, qp,
+ MLX5_CMD_OP_2RST_QP);
+ }
+ if (err)
+ mlx5_ib_warn(dev, "mlx5_ib: modify QP 0x%06x to RESET failed\n",
qp->mqp.qpn);
}
@@ -1186,11 +1506,16 @@ static void destroy_qp_common(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp)
mlx5_ib_unlock_cqs(send_cq, recv_cq);
}
- err = mlx5_core_destroy_qp(dev->mdev, &qp->mqp);
- if (err)
- mlx5_ib_warn(dev, "failed to destroy QP 0x%x\n", qp->mqp.qpn);
- kfree(in);
+ if (qp->ibqp.qp_type == IB_QPT_RAW_PACKET) {
+ destroy_raw_packet_qp(dev, qp);
+ } else {
+ err = mlx5_core_destroy_qp(dev->mdev, &qp->mqp);
+ if (err)
+ mlx5_ib_warn(dev, "failed to destroy QP 0x%x\n",
+ qp->mqp.qpn);
+ }
+ kfree(in);
if (qp->create_type == MLX5_QP_KERNEL)
destroy_qp_kernel(dev, qp);
@@ -1265,6 +1590,11 @@ struct ib_qp *mlx5_ib_create_qp(struct ib_pd *pd,
}
/* fall through */
+ case IB_QPT_RAW_PACKET:
+ if (!pd->uobject) {
+ mlx5_ib_dbg(dev, "Raw Packet QP is not supported for Kernel consumers\n");
+ return ERR_PTR(-EINVAL);
+ }
case IB_QPT_RC:
case IB_QPT_UC:
case IB_QPT_UD:
@@ -1299,7 +1629,6 @@ struct ib_qp *mlx5_ib_create_qp(struct ib_pd *pd,
case IB_QPT_RAW_IPV6:
case IB_QPT_RAW_ETHERTYPE:
- case IB_QPT_RAW_PACKET:
case IB_QPT_MAX:
default:
mlx5_ib_dbg(dev, "unsupported qp type %d\n",
@@ -1375,7 +1704,33 @@ static int ib_rate_to_mlx5(struct mlx5_ib_dev *dev, u8 rate)
return rate + MLX5_STAT_RATE_OFFSET;
}
-static int mlx5_set_path(struct mlx5_ib_dev *dev, const struct ib_ah_attr *ah,
+static int modify_raw_packet_eth_prio(struct mlx5_core_dev *dev,
+ struct mlx5_ib_sq *sq, u8 sl)
+{
+ void *in;
+ void *tisc;
+ int inlen;
+ int err;
+
+ inlen = MLX5_ST_SZ_BYTES(modify_tis_in);
+ in = mlx5_vzalloc(inlen);
+ if (!in)
+ return -ENOMEM;
+
+ MLX5_SET(modify_tis_in, in, bitmask.prio, 1);
+
+ tisc = MLX5_ADDR_OF(modify_tis_in, in, ctx);
+ MLX5_SET(tisc, tisc, prio, ((sl & 0x7) << 1));
+
+ err = mlx5_core_modify_tis(dev, sq->tisn, in, inlen);
+
+ kvfree(in);
+
+ return err;
+}
+
+static int mlx5_set_path(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp,
+ const struct ib_ah_attr *ah,
struct mlx5_qp_path *path, u8 port, int attr_mask,
u32 path_flags, const struct ib_qp_attr *attr)
{
@@ -1418,6 +1773,11 @@ static int mlx5_set_path(struct mlx5_ib_dev *dev, const struct ib_ah_attr *ah,
path->sl = ah->sl & 0xf;
+ if ((qp->ibqp.qp_type == IB_QPT_RAW_PACKET) && qp->sq.wqe_cnt)
+ return modify_raw_packet_eth_prio(dev->mdev,
+ &qp->raw_packet_qp.sq,
+ path->sl);
+
return 0;
}
@@ -1564,10 +1924,152 @@ static int ib_mask_to_mlx5_opt(int ib_mask)
return result;
}
+static int modify_raw_packet_qp_rq(struct mlx5_core_dev *dev,
+ struct mlx5_ib_rq *rq, int new_state)
+{
+ void *in;
+ void *rqc;
+ int inlen;
+ int err;
+
+ inlen = MLX5_ST_SZ_BYTES(modify_rq_in);
+ in = mlx5_vzalloc(inlen);
+ if (!in)
+ return -ENOMEM;
+
+ MLX5_SET(modify_rq_in, in, rq_state, rq->state);
+
+ rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx);
+ MLX5_SET(rqc, rqc, state, new_state);
+
+ err = mlx5_core_modify_rq(dev, rq->mrq.qpn, in, inlen);
+ if (err)
+ goto out;
+
+ rq->state = new_state;
+
+out:
+ kvfree(in);
+ return err;
+}
+
+static int modify_raw_packet_qp_sq(struct mlx5_core_dev *dev,
+ struct mlx5_ib_sq *sq, int new_state)
+{
+ void *in;
+ void *sqc;
+ int inlen;
+ int err;
+
+ inlen = MLX5_ST_SZ_BYTES(modify_sq_in);
+ in = mlx5_vzalloc(inlen);
+ if (!in)
+ return -ENOMEM;
+
+ MLX5_SET(modify_sq_in, in, sq_state, sq->state);
+
+ sqc = MLX5_ADDR_OF(modify_sq_in, in, ctx);
+ MLX5_SET(sqc, sqc, state, new_state);
+
+ err = mlx5_core_modify_sq(dev, sq->msq.qpn, in, inlen);
+ if (err)
+ goto out;
+
+ sq->state = new_state;
+
+out:
+ kvfree(in);
+ return err;
+}
+
+static int modify_raw_packet_qp(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp,
+ u16 operation)
+{
+ struct mlx5_ib_raw_packet_qp *raw_packet_qp = &qp->raw_packet_qp;
+ struct mlx5_ib_rq *rq = &raw_packet_qp->rq;
+ struct mlx5_ib_sq *sq = &raw_packet_qp->sq;
+ int rq_state;
+ int sq_state;
+ int err;
+
+ switch (operation) {
+ case MLX5_CMD_OP_RST2INIT_QP:
+ rq_state = MLX5_RQC_STATE_RDY;
+ sq_state = MLX5_SQC_STATE_RDY;
+ break;
+ case MLX5_CMD_OP_2ERR_QP:
+ rq_state = MLX5_RQC_STATE_ERR;
+ sq_state = MLX5_SQC_STATE_ERR;
+ break;
+ case MLX5_CMD_OP_2RST_QP:
+ rq_state = MLX5_RQC_STATE_RST;
+ sq_state = MLX5_SQC_STATE_RST;
+ break;
+ case MLX5_CMD_OP_INIT2INIT_QP:
+ case MLX5_CMD_OP_INIT2RTR_QP:
+ case MLX5_CMD_OP_RTR2RTS_QP:
+ case MLX5_CMD_OP_RTS2RTS_QP:
+ /* Nothing to do here... */
+ return 0;
+
+ default:
+ WARN_ON(1);
+ return -EINVAL;
+ }
+
+ if (qp->rq.wqe_cnt) {
+ err = modify_raw_packet_qp_rq(dev->mdev, rq, rq_state);
+ if (err)
+ return err;
+ }
+
+ if (qp->sq.wqe_cnt)
+ return modify_raw_packet_qp_sq(dev->mdev, sq, sq_state);
+
+ return 0;
+}
+
static int __mlx5_ib_modify_qp(struct ib_qp *ibqp,
const struct ib_qp_attr *attr, int attr_mask,
enum ib_qp_state cur_state, enum ib_qp_state new_state)
{
+ static const u16 optab[MLX5_QP_NUM_STATE][MLX5_QP_NUM_STATE] = {
+ [MLX5_QP_STATE_RST] = {
+ [MLX5_QP_STATE_RST] = MLX5_CMD_OP_2RST_QP,
+ [MLX5_QP_STATE_ERR] = MLX5_CMD_OP_2ERR_QP,
+ [MLX5_QP_STATE_INIT] = MLX5_CMD_OP_RST2INIT_QP,
+ },
+ [MLX5_QP_STATE_INIT] = {
+ [MLX5_QP_STATE_RST] = MLX5_CMD_OP_2RST_QP,
+ [MLX5_QP_STATE_ERR] = MLX5_CMD_OP_2ERR_QP,
+ [MLX5_QP_STATE_INIT] = MLX5_CMD_OP_INIT2INIT_QP,
+ [MLX5_QP_STATE_RTR] = MLX5_CMD_OP_INIT2RTR_QP,
+ },
+ [MLX5_QP_STATE_RTR] = {
+ [MLX5_QP_STATE_RST] = MLX5_CMD_OP_2RST_QP,
+ [MLX5_QP_STATE_ERR] = MLX5_CMD_OP_2ERR_QP,
+ [MLX5_QP_STATE_RTS] = MLX5_CMD_OP_RTR2RTS_QP,
+ },
+ [MLX5_QP_STATE_RTS] = {
+ [MLX5_QP_STATE_RST] = MLX5_CMD_OP_2RST_QP,
+ [MLX5_QP_STATE_ERR] = MLX5_CMD_OP_2ERR_QP,
+ [MLX5_QP_STATE_RTS] = MLX5_CMD_OP_RTS2RTS_QP,
+ },
+ [MLX5_QP_STATE_SQD] = {
+ [MLX5_QP_STATE_RST] = MLX5_CMD_OP_2RST_QP,
+ [MLX5_QP_STATE_ERR] = MLX5_CMD_OP_2ERR_QP,
+ },
+ [MLX5_QP_STATE_SQER] = {
+ [MLX5_QP_STATE_RST] = MLX5_CMD_OP_2RST_QP,
+ [MLX5_QP_STATE_ERR] = MLX5_CMD_OP_2ERR_QP,
+ [MLX5_QP_STATE_RTS] = MLX5_CMD_OP_SQERR2RTS_QP,
+ },
+ [MLX5_QP_STATE_ERR] = {
+ [MLX5_QP_STATE_RST] = MLX5_CMD_OP_2RST_QP,
+ [MLX5_QP_STATE_ERR] = MLX5_CMD_OP_2ERR_QP,
+ }
+ };
+
struct mlx5_ib_dev *dev = to_mdev(ibqp->device);
struct mlx5_ib_qp *qp = to_mqp(ibqp);
struct mlx5_ib_cq *send_cq, *recv_cq;
@@ -1579,6 +2081,7 @@ static int __mlx5_ib_modify_qp(struct ib_qp *ibqp,
int sqd_event;
int mlx5_st;
int err;
+ u16 op;
in = kzalloc(sizeof(*in), GFP_KERNEL);
if (!in)
@@ -1638,7 +2141,7 @@ static int __mlx5_ib_modify_qp(struct ib_qp *ibqp,
context->pri_path.port = attr->port_num;
if (attr_mask & IB_QP_AV) {
- err = mlx5_set_path(dev, &attr->ah_attr, &context->pri_path,
+ err = mlx5_set_path(dev, qp, &attr->ah_attr, &context->pri_path,
attr_mask & IB_QP_PORT ? attr->port_num : qp->port,
attr_mask, 0, attr);
if (err)
@@ -1649,7 +2152,8 @@ static int __mlx5_ib_modify_qp(struct ib_qp *ibqp,
context->pri_path.ackto_lt |= attr->timeout << 3;
if (attr_mask & IB_QP_ALT_PATH) {
- err = mlx5_set_path(dev, &attr->alt_ah_attr, &context->alt_path,
+ err = mlx5_set_path(dev, qp, &attr->alt_ah_attr,
+ &context->alt_path,
attr->alt_port_num, attr_mask, 0, attr);
if (err)
goto out;
@@ -1724,12 +2228,20 @@ static int __mlx5_ib_modify_qp(struct ib_qp *ibqp,
(new_state == IB_QPS_RESET || new_state == IB_QPS_ERR))
mlx5_ib_qp_disable_pagefaults(qp);
+ if (mlx5_cur >= MLX5_QP_NUM_STATE || mlx5_new >= MLX5_QP_NUM_STATE ||
+ !optab[mlx5_cur][mlx5_new])
+ goto out;
+
+ op = optab[mlx5_cur][mlx5_new];
optpar = ib_mask_to_mlx5_opt(attr_mask);
optpar &= opt_mask[mlx5_cur][mlx5_new][mlx5_st];
in->optparam = cpu_to_be32(optpar);
- err = mlx5_core_qp_modify(dev->mdev, to_mlx5_state(cur_state),
- to_mlx5_state(new_state), in, sqd_event,
- &qp->mqp);
+
+ if (qp->ibqp.qp_type == IB_QPT_RAW_PACKET)
+ err = modify_raw_packet_qp(dev, qp, op);
+ else
+ err = mlx5_core_qp_modify(dev->mdev, op, in, sqd_event,
+ &qp->mqp);
if (err)
goto out;
@@ -3036,6 +3548,185 @@ static void to_ib_ah_attr(struct mlx5_ib_dev *ibdev, struct ib_ah_attr *ib_ah_at
}
}
+static int query_raw_packet_qp_sq_state(struct mlx5_ib_dev *dev,
+ struct mlx5_ib_sq *sq,
+ u8 *sq_state)
+{
+ void *out;
+ void *sqc;
+ int inlen;
+ int err;
+
+ inlen = MLX5_ST_SZ_BYTES(query_sq_out);
+ out = mlx5_vzalloc(inlen);
+ if (!out)
+ return -ENOMEM;
+
+ err = mlx5_core_query_sq(dev->mdev, sq->msq.qpn, out);
+ if (err)
+ goto out;
+
+ sqc = MLX5_ADDR_OF(query_sq_out, out, sq_context);
+ *sq_state = MLX5_GET(sqc, sqc, state);
+ sq->state = *sq_state;
+
+out:
+ kvfree(out);
+ return err;
+}
+
+static int query_raw_packet_qp_rq_state(struct mlx5_ib_dev *dev,
+ struct mlx5_ib_rq *rq,
+ u8 *rq_state)
+{
+ void *out;
+ void *rqc;
+ int inlen;
+ int err;
+
+ inlen = MLX5_ST_SZ_BYTES(query_rq_out);
+ out = mlx5_vzalloc(inlen);
+ if (!out)
+ return -ENOMEM;
+
+ err = mlx5_core_query_rq(dev->mdev, rq->mrq.qpn, out);
+ if (err)
+ goto out;
+
+ rqc = MLX5_ADDR_OF(query_rq_out, out, rq_context);
+ *rq_state = MLX5_GET(rqc, rqc, state);
+ rq->state = *rq_state;
+
+out:
+ kvfree(out);
+ return err;
+}
+
+static int sqrq_state_to_qp_state(u8 sq_state, u8 rq_state,
+ struct mlx5_ib_qp *qp, u8 *qp_state)
+{
+ static const u8 sqrq_trans[MLX5_RQ_NUM_STATE][MLX5_SQ_NUM_STATE] = {
+ [MLX5_RQC_STATE_RST] = {
+ [MLX5_SQC_STATE_RST] = IB_QPS_RESET,
+ [MLX5_SQC_STATE_RDY] = MLX5_QP_STATE_BAD,
+ [MLX5_SQC_STATE_ERR] = MLX5_QP_STATE_BAD,
+ },
+ [MLX5_RQC_STATE_RDY] = {
+ [MLX5_SQC_STATE_RST] = MLX5_QP_STATE_BAD,
+ [MLX5_SQC_STATE_RDY] = MLX5_QP_STATE,
+ [MLX5_SQC_STATE_ERR] = IB_QPS_SQE,
+ },
+ [MLX5_RQC_STATE_ERR] = {
+ [MLX5_SQC_STATE_RST] = MLX5_QP_STATE_BAD,
+ [MLX5_SQC_STATE_RDY] = MLX5_QP_STATE_BAD,
+ [MLX5_SQC_STATE_ERR] = IB_QPS_ERR,
+ },
+ };
+
+ *qp_state = sqrq_trans[rq_state][sq_state];
+
+ if (*qp_state == MLX5_QP_STATE_BAD)
+ return -EINVAL;
+
+ if (*qp_state == MLX5_QP_STATE) {
+ if (qp->state == IB_QPS_INIT ||
+ qp->state == IB_QPS_RTR ||
+ qp->state == IB_QPS_RTS) {
+ *qp_state = qp->state;
+ } else {
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
+static int sq_state_to_qp_state(u8 sq_state, struct mlx5_ib_qp *qp,
+ u8 *qp_state)
+{
+ switch (sq_state) {
+ case MLX5_SQC_STATE_RST:
+ *qp_state = IB_QPS_RESET;
+ break;
+ case MLX5_SQC_STATE_RDY:
+ if (qp->state == IB_QPS_INIT ||
+ qp->state == IB_QPS_RTR ||
+ qp->state == IB_QPS_RTS)
+ *qp_state = qp->state;
+ else
+ return -EINVAL;
+ break;
+ case MLX5_SQC_STATE_ERR:
+ if (qp->state == IB_QPS_SQE ||
+ qp->state == IB_QPS_ERR)
+ *qp_state = qp->state;
+ else
+ return -EINVAL;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int rq_state_to_qp_state(u8 rq_state, struct mlx5_ib_qp *qp,
+ u8 *qp_state)
+{
+ switch (rq_state) {
+ case MLX5_RQC_STATE_RST:
+ *qp_state = IB_QPS_RESET;
+ break;
+ case MLX5_RQC_STATE_RDY:
+ if (qp->state == IB_QPS_INIT ||
+ qp->state == IB_QPS_RTR ||
+ qp->state == IB_QPS_RTS)
+ *qp_state = qp->state;
+ else
+ return -EINVAL;
+ break;
+ case MLX5_RQC_STATE_ERR:
+ *qp_state = IB_QPS_ERR;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int query_raw_packet_qp_state(struct mlx5_ib_dev *dev,
+ struct mlx5_ib_qp *qp,
+ u8 *raw_packet_qp_state)
+{
+ struct mlx5_ib_raw_packet_qp *raw_packet_qp = &qp->raw_packet_qp;
+ struct mlx5_ib_sq *sq = &raw_packet_qp->sq;
+ struct mlx5_ib_rq *rq = &raw_packet_qp->rq;
+ int err;
+ u8 sq_state = 0;
+ u8 rq_state = 0;
+
+ if (qp->sq.wqe_cnt) {
+ err = query_raw_packet_qp_sq_state(dev, sq, &sq_state);
+ if (err)
+ return err;
+ }
+
+ if (qp->rq.wqe_cnt) {
+ err = query_raw_packet_qp_rq_state(dev, rq, &rq_state);
+ if (err)
+ return err;
+ }
+
+ if (qp->sq.wqe_cnt && qp->rq.wqe_cnt)
+ return sqrq_state_to_qp_state(sq_state, rq_state, qp,
+ raw_packet_qp_state);
+ else if (qp->sq.wqe_cnt)
+ return sq_state_to_qp_state(sq_state, qp, raw_packet_qp_state);
+ else
+ return rq_state_to_qp_state(rq_state, qp, raw_packet_qp_state);
+}
+
int mlx5_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask,
struct ib_qp_init_attr *qp_init_attr)
{
@@ -3045,6 +3736,7 @@ int mlx5_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr
struct mlx5_qp_context *context;
int mlx5_state;
int err = 0;
+ u8 raw_packet_qp_state;
#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
/*
@@ -3055,53 +3747,72 @@ int mlx5_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr
#endif
mutex_lock(&qp->mutex);
- outb = kzalloc(sizeof(*outb), GFP_KERNEL);
- if (!outb) {
- err = -ENOMEM;
- goto out;
- }
- context = &outb->ctx;
- err = mlx5_core_qp_query(dev->mdev, &qp->mqp, outb, sizeof(*outb));
- if (err)
- goto out_free;
- mlx5_state = be32_to_cpu(context->flags) >> 28;
+ if (qp->ibqp.qp_type == IB_QPT_RAW_PACKET) {
+ err = query_raw_packet_qp_state(dev, qp, &raw_packet_qp_state);
+ if (err)
+ goto out;
+ qp->state = raw_packet_qp_state;
+ qp_attr->port_num = 1;
+ } else {
+ outb = kzalloc(sizeof(*outb), GFP_KERNEL);
+ if (!outb) {
+ err = -ENOMEM;
+ goto out;
+ }
+
+ context = &outb->ctx;
+ err = mlx5_core_qp_query(dev->mdev, &qp->mqp, outb,
+ sizeof(*outb));
+ if (err) {
+ kfree(outb);
+ goto out;
+ }
+
+ mlx5_state = be32_to_cpu(context->flags) >> 28;
+
+ qp->state = to_ib_qp_state(mlx5_state);
+ qp_attr->path_mtu = context->mtu_msgmax >> 5;
+ qp_attr->path_mig_state =
+ to_ib_mig_state((be32_to_cpu(context->flags) >> 11) & 0x3);
+ qp_attr->qkey = be32_to_cpu(context->qkey);
+ qp_attr->rq_psn = be32_to_cpu(context->rnr_nextrecvpsn) & 0xffffff;
+ qp_attr->sq_psn = be32_to_cpu(context->next_send_psn) & 0xffffff;
+ qp_attr->dest_qp_num = be32_to_cpu(context->log_pg_sz_remote_qpn) & 0xffffff;
+ qp_attr->qp_access_flags =
+ to_ib_qp_access_flags(be32_to_cpu(context->params2));
+
+ if (qp->ibqp.qp_type == IB_QPT_RC ||
+ qp->ibqp.qp_type == IB_QPT_UC) {
+ to_ib_ah_attr(dev, &qp_attr->ah_attr,
+ &context->pri_path);
+ to_ib_ah_attr(dev, &qp_attr->alt_ah_attr,
+ &context->alt_path);
+ qp_attr->alt_pkey_index = context->alt_path.pkey_index & 0x7f;
+ qp_attr->alt_port_num = qp_attr->alt_ah_attr.port_num;
+ }
+
+ qp_attr->pkey_index = context->pri_path.pkey_index & 0x7f;
+ qp_attr->port_num = context->pri_path.port;
+
+ /* qp_attr->en_sqd_async_notify is only applicable in modify qp */
+ qp_attr->sq_draining = mlx5_state == MLX5_QP_STATE_SQ_DRAINING;
+
+ qp_attr->max_rd_atomic = 1 << ((be32_to_cpu(context->params1) >> 21) & 0x7);
+
+ qp_attr->max_dest_rd_atomic =
+ 1 << ((be32_to_cpu(context->params2) >> 21) & 0x7);
+ qp_attr->min_rnr_timer =
+ (be32_to_cpu(context->rnr_nextrecvpsn) >> 24) & 0x1f;
+ qp_attr->timeout = context->pri_path.ackto_lt >> 3;
+ qp_attr->retry_cnt = (be32_to_cpu(context->params1) >> 16) & 0x7;
+ qp_attr->rnr_retry = (be32_to_cpu(context->params1) >> 13) & 0x7;
+ qp_attr->alt_timeout = context->alt_path.ackto_lt >> 3;
+
+ kfree(outb);
+ }
- qp->state = to_ib_qp_state(mlx5_state);
qp_attr->qp_state = qp->state;
- qp_attr->path_mtu = context->mtu_msgmax >> 5;
- qp_attr->path_mig_state =
- to_ib_mig_state((be32_to_cpu(context->flags) >> 11) & 0x3);
- qp_attr->qkey = be32_to_cpu(context->qkey);
- qp_attr->rq_psn = be32_to_cpu(context->rnr_nextrecvpsn) & 0xffffff;
- qp_attr->sq_psn = be32_to_cpu(context->next_send_psn) & 0xffffff;
- qp_attr->dest_qp_num = be32_to_cpu(context->log_pg_sz_remote_qpn) & 0xffffff;
- qp_attr->qp_access_flags =
- to_ib_qp_access_flags(be32_to_cpu(context->params2));
-
- if (qp->ibqp.qp_type == IB_QPT_RC || qp->ibqp.qp_type == IB_QPT_UC) {
- to_ib_ah_attr(dev, &qp_attr->ah_attr, &context->pri_path);
- to_ib_ah_attr(dev, &qp_attr->alt_ah_attr, &context->alt_path);
- qp_attr->alt_pkey_index = context->alt_path.pkey_index & 0x7f;
- qp_attr->alt_port_num = qp_attr->alt_ah_attr.port_num;
- }
-
- qp_attr->pkey_index = context->pri_path.pkey_index & 0x7f;
- qp_attr->port_num = context->pri_path.port;
-
- /* qp_attr->en_sqd_async_notify is only applicable in modify qp */
- qp_attr->sq_draining = mlx5_state == MLX5_QP_STATE_SQ_DRAINING;
-
- qp_attr->max_rd_atomic = 1 << ((be32_to_cpu(context->params1) >> 21) & 0x7);
-
- qp_attr->max_dest_rd_atomic =
- 1 << ((be32_to_cpu(context->params2) >> 21) & 0x7);
- qp_attr->min_rnr_timer =
- (be32_to_cpu(context->rnr_nextrecvpsn) >> 24) & 0x1f;
- qp_attr->timeout = context->pri_path.ackto_lt >> 3;
- qp_attr->retry_cnt = (be32_to_cpu(context->params1) >> 16) & 0x7;
- qp_attr->rnr_retry = (be32_to_cpu(context->params1) >> 13) & 0x7;
- qp_attr->alt_timeout = context->alt_path.ackto_lt >> 3;
qp_attr->cur_qp_state = qp_attr->qp_state;
qp_attr->cap.max_recv_wr = qp->rq.wqe_cnt;
qp_attr->cap.max_recv_sge = qp->rq.max_gs;
@@ -3128,9 +3839,6 @@ int mlx5_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr
qp_init_attr->sq_sig_type = qp->sq_signal_bits & MLX5_WQE_CTRL_CQ_UPDATE ?
IB_SIGNAL_ALL_WR : IB_SIGNAL_REQ_WR;
-out_free:
- kfree(outb);
-
out:
mutex_unlock(&qp->mutex);
return err;
diff --git a/drivers/infiniband/hw/mlx5/user.h b/drivers/infiniband/hw/mlx5/user.h
index 4d70505..3f02e21 100644
--- a/drivers/infiniband/hw/mlx5/user.h
+++ b/drivers/infiniband/hw/mlx5/user.h
@@ -130,6 +130,7 @@ struct mlx5_ib_create_qp {
__u32 flags;
__u32 uidx;
__u32 reserved;
+ __u64 sq_buf_addr;
};
struct mlx5_ib_create_qp_resp {
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/qp.c b/drivers/net/ethernet/mellanox/mlx5/core/qp.c
index 0b803a1..590c7fb 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/qp.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/qp.c
@@ -345,59 +345,15 @@ int mlx5_core_destroy_qp(struct mlx5_core_dev *dev,
}
EXPORT_SYMBOL_GPL(mlx5_core_destroy_qp);
-int mlx5_core_qp_modify(struct mlx5_core_dev *dev, enum mlx5_qp_state cur_state,
- enum mlx5_qp_state new_state,
+int mlx5_core_qp_modify(struct mlx5_core_dev *dev, u16 operation,
struct mlx5_modify_qp_mbox_in *in, int sqd_event,
struct mlx5_core_qp *qp)
{
- static const u16 optab[MLX5_QP_NUM_STATE][MLX5_QP_NUM_STATE] = {
- [MLX5_QP_STATE_RST] = {
- [MLX5_QP_STATE_RST] = MLX5_CMD_OP_2RST_QP,
- [MLX5_QP_STATE_ERR] = MLX5_CMD_OP_2ERR_QP,
- [MLX5_QP_STATE_INIT] = MLX5_CMD_OP_RST2INIT_QP,
- },
- [MLX5_QP_STATE_INIT] = {
- [MLX5_QP_STATE_RST] = MLX5_CMD_OP_2RST_QP,
- [MLX5_QP_STATE_ERR] = MLX5_CMD_OP_2ERR_QP,
- [MLX5_QP_STATE_INIT] = MLX5_CMD_OP_INIT2INIT_QP,
- [MLX5_QP_STATE_RTR] = MLX5_CMD_OP_INIT2RTR_QP,
- },
- [MLX5_QP_STATE_RTR] = {
- [MLX5_QP_STATE_RST] = MLX5_CMD_OP_2RST_QP,
- [MLX5_QP_STATE_ERR] = MLX5_CMD_OP_2ERR_QP,
- [MLX5_QP_STATE_RTS] = MLX5_CMD_OP_RTR2RTS_QP,
- },
- [MLX5_QP_STATE_RTS] = {
- [MLX5_QP_STATE_RST] = MLX5_CMD_OP_2RST_QP,
- [MLX5_QP_STATE_ERR] = MLX5_CMD_OP_2ERR_QP,
- [MLX5_QP_STATE_RTS] = MLX5_CMD_OP_RTS2RTS_QP,
- },
- [MLX5_QP_STATE_SQD] = {
- [MLX5_QP_STATE_RST] = MLX5_CMD_OP_2RST_QP,
- [MLX5_QP_STATE_ERR] = MLX5_CMD_OP_2ERR_QP,
- },
- [MLX5_QP_STATE_SQER] = {
- [MLX5_QP_STATE_RST] = MLX5_CMD_OP_2RST_QP,
- [MLX5_QP_STATE_ERR] = MLX5_CMD_OP_2ERR_QP,
- [MLX5_QP_STATE_RTS] = MLX5_CMD_OP_SQERR2RTS_QP,
- },
- [MLX5_QP_STATE_ERR] = {
- [MLX5_QP_STATE_RST] = MLX5_CMD_OP_2RST_QP,
- [MLX5_QP_STATE_ERR] = MLX5_CMD_OP_2ERR_QP,
- }
- };
-
struct mlx5_modify_qp_mbox_out out;
int err = 0;
- u16 op;
-
- if (cur_state >= MLX5_QP_NUM_STATE || new_state >= MLX5_QP_NUM_STATE ||
- !optab[cur_state][new_state])
- return -EINVAL;
memset(&out, 0, sizeof(out));
- op = optab[cur_state][new_state];
- in->hdr.opcode = cpu_to_be16(op);
+ in->hdr.opcode = cpu_to_be16(operation);
in->qpn = cpu_to_be32(qp->qpn);
err = mlx5_cmd_exec(dev, in, sizeof(*in), &out, sizeof(out));
if (err)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/transobj.c b/drivers/net/ethernet/mellanox/mlx5/core/transobj.c
index 7523cb1..8d65f6c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/transobj.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/transobj.c
@@ -111,6 +111,19 @@ void mlx5_core_destroy_rq(struct mlx5_core_dev *dev, u32 rqn)
mlx5_cmd_exec_check_status(dev, in, sizeof(in), out, sizeof(out));
}
+int mlx5_core_query_rq(struct mlx5_core_dev *dev, u32 rqn, u32 *out)
+{
+ u32 in[MLX5_ST_SZ_DW(query_rq_in)];
+ int outlen = MLX5_ST_SZ_BYTES(query_rq_out);
+
+ memset(in, 0, sizeof(in));
+ MLX5_SET(query_rq_in, in, opcode, MLX5_CMD_OP_QUERY_RQ);
+ MLX5_SET(query_rq_in, in, rqn, rqn);
+
+ return mlx5_cmd_exec_check_status(dev, in, sizeof(in), out, outlen);
+}
+EXPORT_SYMBOL(mlx5_core_query_rq);
+
int mlx5_core_create_sq(struct mlx5_core_dev *dev, u32 *in, int inlen, u32 *sqn)
{
u32 out[MLX5_ST_SZ_DW(create_sq_out)];
@@ -151,6 +164,19 @@ void mlx5_core_destroy_sq(struct mlx5_core_dev *dev, u32 sqn)
mlx5_cmd_exec_check_status(dev, in, sizeof(in), out, sizeof(out));
}
+int mlx5_core_query_sq(struct mlx5_core_dev *dev, u32 sqn, u32 *out)
+{
+ u32 in[MLX5_ST_SZ_DW(query_sq_in)];
+ int outlen = MLX5_ST_SZ_BYTES(query_sq_out);
+
+ memset(in, 0, sizeof(in));
+ MLX5_SET(query_sq_in, in, opcode, MLX5_CMD_OP_QUERY_SQ);
+ MLX5_SET(query_sq_in, in, sqn, sqn);
+
+ return mlx5_cmd_exec_check_status(dev, in, sizeof(in), out, outlen);
+}
+EXPORT_SYMBOL(mlx5_core_query_sq);
+
int mlx5_core_create_tir(struct mlx5_core_dev *dev, u32 *in, int inlen,
u32 *tirn)
{
@@ -211,6 +237,19 @@ int mlx5_core_create_tis(struct mlx5_core_dev *dev, u32 *in, int inlen,
}
EXPORT_SYMBOL(mlx5_core_create_tis);
+int mlx5_core_modify_tis(struct mlx5_core_dev *dev, u32 tisn, u32 *in,
+ int inlen)
+{
+ u32 out[MLX5_ST_SZ_DW(modify_tis_out)];
+
+ MLX5_SET(modify_tis_in, in, tisn, tisn);
+ MLX5_SET(modify_tis_in, in, opcode, MLX5_CMD_OP_MODIFY_TIS);
+
+ memset(out, 0, sizeof(out));
+ return mlx5_cmd_exec_check_status(dev, in, inlen, out, sizeof(out));
+}
+EXPORT_SYMBOL(mlx5_core_modify_tis);
+
void mlx5_core_destroy_tis(struct mlx5_core_dev *dev, u32 tisn)
{
u32 in[MLX5_ST_SZ_DW(destroy_tis_out)];
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index dd20974..186d01c 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -4031,6 +4031,13 @@ struct mlx5_ifc_modify_tis_out_bits {
u8 reserved_1[0x40];
};
+struct mlx5_ifc_modify_tis_bitmask_bits {
+ u8 reserved_0[0x20];
+
+ u8 reserved_1[0x1f];
+ u8 prio[0x1];
+};
+
struct mlx5_ifc_modify_tis_in_bits {
u8 opcode[0x10];
u8 reserved_0[0x10];
@@ -4043,7 +4050,7 @@ struct mlx5_ifc_modify_tis_in_bits {
u8 reserved_3[0x20];
- u8 modify_bitmask[0x40];
+ struct mlx5_ifc_modify_tis_bitmask_bits bitmask;
u8 reserved_4[0x40];
@@ -4171,7 +4178,7 @@ struct mlx5_ifc_modify_rq_in_bits {
u8 reserved_3[0x20];
- u8 modify_bitmask[0x40];
+ struct mlx5_ifc_modify_tis_bitmask_bits bitmask;
u8 reserved_4[0x40];
diff --git a/include/linux/mlx5/qp.h b/include/linux/mlx5/qp.h
index 3c4b3e9..5325061 100644
--- a/include/linux/mlx5/qp.h
+++ b/include/linux/mlx5/qp.h
@@ -620,8 +620,7 @@ int mlx5_core_create_qp(struct mlx5_core_dev *dev,
struct mlx5_core_qp *qp,
struct mlx5_create_qp_mbox_in *in,
int inlen);
-int mlx5_core_qp_modify(struct mlx5_core_dev *dev, enum mlx5_qp_state cur_state,
- enum mlx5_qp_state new_state,
+int mlx5_core_qp_modify(struct mlx5_core_dev *dev, u16 operation,
struct mlx5_modify_qp_mbox_in *in, int sqd_event,
struct mlx5_core_qp *qp);
int mlx5_core_destroy_qp(struct mlx5_core_dev *dev,
diff --git a/include/linux/mlx5/transobj.h b/include/linux/mlx5/transobj.h
index 821e71b..e3ff3f2 100644
--- a/include/linux/mlx5/transobj.h
+++ b/include/linux/mlx5/transobj.h
@@ -41,10 +41,12 @@ int mlx5_core_create_rq(struct mlx5_core_dev *dev, u32 *in, int inlen,
u32 *rqn);
int mlx5_core_modify_rq(struct mlx5_core_dev *dev, u32 rqn, u32 *in, int inlen);
void mlx5_core_destroy_rq(struct mlx5_core_dev *dev, u32 rqn);
+int mlx5_core_query_rq(struct mlx5_core_dev *dev, u32 rqn, u32 *out);
int mlx5_core_create_sq(struct mlx5_core_dev *dev, u32 *in, int inlen,
u32 *sqn);
int mlx5_core_modify_sq(struct mlx5_core_dev *dev, u32 sqn, u32 *in, int inlen);
void mlx5_core_destroy_sq(struct mlx5_core_dev *dev, u32 sqn);
+int mlx5_core_query_sq(struct mlx5_core_dev *dev, u32 sqn, u32 *out);
int mlx5_core_create_tir(struct mlx5_core_dev *dev, u32 *in, int inlen,
u32 *tirn);
int mlx5_core_modify_tir(struct mlx5_core_dev *dev, u32 tirn, u32 *in,
@@ -52,6 +54,8 @@ int mlx5_core_modify_tir(struct mlx5_core_dev *dev, u32 tirn, u32 *in,
void mlx5_core_destroy_tir(struct mlx5_core_dev *dev, u32 tirn);
int mlx5_core_create_tis(struct mlx5_core_dev *dev, u32 *in, int inlen,
u32 *tisn);
+int mlx5_core_modify_tis(struct mlx5_core_dev *dev, u32 tisn, u32 *in,
+ int inlen);
void mlx5_core_destroy_tis(struct mlx5_core_dev *dev, u32 tisn);
int mlx5_core_create_rmp(struct mlx5_core_dev *dev, u32 *in, int inlen,
u32 *rmpn);
--
1.8.3.1
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^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH for-next 6/6] IB/mlx5: Add Raw Packet Queue Pair (QP) support
[not found] ` <1449778184-10618-1-git-send-email-majd-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
@ 2015-12-15 14:37 ` Or Gerlitz
0 siblings, 0 replies; 2+ messages in thread
From: Or Gerlitz @ 2015-12-15 14:37 UTC (permalink / raw)
To: Majd Dibbiny
Cc: eli-VPRAkNaXOzVWk0Htik3J/w, dledford-H+wXaHxf7aLQT0dZR+AlfA,
linux-rdma-u79uwXL29TY76Z2rM5mHXA, achiad-VPRAkNaXOzVWk0Htik3J/w,
matanb-VPRAkNaXOzVWk0Htik3J/w
On 12/10/2015 10:09 PM, Majd Dibbiny wrote:
> This patchs adds support for Raw Packet QP for the mlx5 device.
>
> Raw Packet QP, unlike other QP types, has no matching mlx5_core_qp
> object but rather it is built of RQ/SQ/TIR/TIS/TD mlx5_core object.
>
> The Raw Packet QP state changes are implemented by changing the
> state of the sub-objects.
>
> Since the SQ and RQ work-queue (WQ) buffers are not contiguous like
> other QPs, we allocate separate buffers in the user-space and pass
> the address of each one of them separately to the kernel.
>
> Signed-off-by: Majd Dibbiny<majd-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
> ---
> drivers/infiniband/hw/mlx5/main.c | 15 +-
> drivers/infiniband/hw/mlx5/mlx5_ib.h | 52 +-
> drivers/infiniband/hw/mlx5/qp.c | 894 ++++++++++++++++++---
> drivers/infiniband/hw/mlx5/user.h | 1 +
> drivers/net/ethernet/mellanox/mlx5/core/qp.c | 48 +-
> drivers/net/ethernet/mellanox/mlx5/core/transobj.c | 39 +
> include/linux/mlx5/mlx5_ifc.h | 11 +-
> include/linux/mlx5/qp.h | 3 +-
> include/linux/mlx5/transobj.h | 4 +
> 9 files changed, 913 insertions(+), 154 deletions(-)
Seems way too big for single patch, seek how to split to 2-3 patches
Or.
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^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2015-12-15 14:37 UTC | newest]
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2015-12-10 20:09 [PATCH for-next 6/6] IB/mlx5: Add Raw Packet Queue Pair (QP) support Majd Dibbiny
[not found] ` <1449778184-10618-1-git-send-email-majd-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-12-15 14:37 ` Or Gerlitz
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