From: Ajit Khaparde <ajit.khaparde@broadcom.com>
To: ajit.khaparde@broadcom.com
Cc: andrew.gospodarek@broadcom.com, davem@davemloft.net,
edumazet@google.com, jgg@ziepe.ca, kuba@kernel.org,
leon@kernel.org, linux-kernel@vger.kernel.org,
linux-rdma@vger.kernel.org, michael.chan@broadcom.com,
netdev@vger.kernel.org, pabeni@redhat.com,
selvin.xavier@broadcom.com, Leon Romanovsky <leonro@nvidia.com>
Subject: [PATCH v2 4/6] bnxt_en: Use direct API instead of indirection
Date: Tue, 25 Oct 2022 10:31:08 -0700 [thread overview]
Message-ID: <20221025173110.33192-5-ajit.khaparde@broadcom.com> (raw)
In-Reply-To: <20221025173110.33192-1-ajit.khaparde@broadcom.com>
[-- Attachment #1: Type: text/plain, Size: 13293 bytes --]
For a single ULP user there is no need for complicating function
indirection calls. Remove all this complexity in favour of direct
function calls exported by the bnxt_en driver. This allows to
simplify the code greatly.
Suggested-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
---
drivers/infiniband/hw/bnxt_re/main.c | 71 +++++--------------
drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c | 64 +++++------------
drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h | 24 +++----
3 files changed, 43 insertions(+), 116 deletions(-)
diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c
index 755821c68020..67872e9bfd63 100644
--- a/drivers/infiniband/hw/bnxt_re/main.c
+++ b/drivers/infiniband/hw/bnxt_re/main.c
@@ -353,23 +353,6 @@ static struct bnxt_ulp_ops bnxt_re_ulp_ops = {
/* RoCE -> Net driver */
-/* Driver registration routines used to let the networking driver (bnxt_en)
- * to know that the RoCE driver is now installed
- */
-static int bnxt_re_unregister_netdev(struct bnxt_re_dev *rdev)
-{
- struct bnxt_en_dev *en_dev;
- int rc;
-
- if (!rdev)
- return -EINVAL;
-
- en_dev = rdev->en_dev;
-
- rc = en_dev->en_ops->bnxt_unregister_device(rdev->en_dev);
- return rc;
-}
-
static int bnxt_re_register_netdev(struct bnxt_re_dev *rdev)
{
struct bnxt_en_dev *en_dev;
@@ -380,26 +363,12 @@ static int bnxt_re_register_netdev(struct bnxt_re_dev *rdev)
en_dev = rdev->en_dev;
- rc = en_dev->en_ops->bnxt_register_device(en_dev,
- &bnxt_re_ulp_ops, rdev);
- rdev->qplib_res.pdev = rdev->en_dev->pdev;
+ rc = bnxt_register_dev(en_dev, &bnxt_re_ulp_ops, rdev);
+ if (!rc)
+ rdev->qplib_res.pdev = rdev->en_dev->pdev;
return rc;
}
-static int bnxt_re_free_msix(struct bnxt_re_dev *rdev)
-{
- struct bnxt_en_dev *en_dev;
-
- if (!rdev)
- return -EINVAL;
-
- en_dev = rdev->en_dev;
-
- en_dev->en_ops->bnxt_free_msix(rdev->en_dev);
-
- return 0;
-}
-
static int bnxt_re_request_msix(struct bnxt_re_dev *rdev)
{
int rc = 0, num_msix_want = BNXT_RE_MAX_MSIX, num_msix_got;
@@ -412,9 +381,9 @@ static int bnxt_re_request_msix(struct bnxt_re_dev *rdev)
num_msix_want = min_t(u32, BNXT_RE_MAX_MSIX, num_online_cpus());
- num_msix_got = en_dev->en_ops->bnxt_request_msix(en_dev,
- rdev->msix_entries,
- num_msix_want);
+ num_msix_got = bnxt_req_msix_vecs(en_dev,
+ rdev->msix_entries,
+ num_msix_want);
if (num_msix_got < BNXT_RE_MIN_MSIX) {
rc = -EINVAL;
goto done;
@@ -475,7 +444,7 @@ static int bnxt_re_net_ring_free(struct bnxt_re_dev *rdev,
req.ring_id = cpu_to_le16(fw_ring_id);
bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp,
sizeof(resp), DFLT_HWRM_CMD_TIMEOUT);
- rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, &fw_msg);
+ rc = bnxt_send_msg(en_dev, &fw_msg);
if (rc)
ibdev_err(&rdev->ibdev, "Failed to free HW ring:%d :%#x",
req.ring_id, rc);
@@ -512,7 +481,7 @@ static int bnxt_re_net_ring_alloc(struct bnxt_re_dev *rdev,
req.int_mode = ring_attr->mode;
bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp,
sizeof(resp), DFLT_HWRM_CMD_TIMEOUT);
- rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, &fw_msg);
+ rc = bnxt_send_msg(en_dev, &fw_msg);
if (!rc)
*fw_ring_id = le16_to_cpu(resp.ring_id);
@@ -540,7 +509,7 @@ static int bnxt_re_net_stats_ctx_free(struct bnxt_re_dev *rdev,
req.stat_ctx_id = cpu_to_le32(fw_stats_ctx_id);
bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp,
sizeof(resp), DFLT_HWRM_CMD_TIMEOUT);
- rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, &fw_msg);
+ rc = bnxt_send_msg(en_dev, &fw_msg);
if (rc)
ibdev_err(&rdev->ibdev, "Failed to free HW stats context %#x",
rc);
@@ -573,7 +542,7 @@ static int bnxt_re_net_stats_ctx_alloc(struct bnxt_re_dev *rdev,
req.stat_ctx_flags = STAT_CTX_ALLOC_REQ_STAT_CTX_FLAGS_ROCE;
bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp,
sizeof(resp), DFLT_HWRM_CMD_TIMEOUT);
- rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, &fw_msg);
+ rc = bnxt_send_msg(en_dev, &fw_msg);
if (!rc)
*fw_stats_ctx_id = le32_to_cpu(resp.stat_ctx_id);
@@ -1079,7 +1048,7 @@ static int bnxt_re_query_hwrm_pri2cos(struct bnxt_re_dev *rdev, u8 dir,
bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp,
sizeof(resp), DFLT_HWRM_CMD_TIMEOUT);
- rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, &fw_msg);
+ rc = bnxt_send_msg(en_dev, &fw_msg);
if (rc)
return rc;
@@ -1265,7 +1234,7 @@ static void bnxt_re_query_hwrm_intf_version(struct bnxt_re_dev *rdev)
req.hwrm_intf_upd = HWRM_VERSION_UPDATE;
bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp,
sizeof(resp), DFLT_HWRM_CMD_TIMEOUT);
- rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, &fw_msg);
+ rc = bnxt_send_msg(en_dev, &fw_msg);
if (rc) {
ibdev_err(&rdev->ibdev, "Failed to query HW version, rc = 0x%x",
rc);
@@ -1328,20 +1297,12 @@ static void bnxt_re_dev_uninit(struct bnxt_re_dev *rdev)
bnxt_re_net_ring_free(rdev, rdev->rcfw.creq.ring_id, type);
bnxt_qplib_free_rcfw_channel(&rdev->rcfw);
}
- if (test_and_clear_bit(BNXT_RE_FLAG_GOT_MSIX, &rdev->flags)) {
- rc = bnxt_re_free_msix(rdev);
- if (rc)
- ibdev_warn(&rdev->ibdev,
- "Failed to free MSI-X vectors: %#x", rc);
- }
+ if (test_and_clear_bit(BNXT_RE_FLAG_GOT_MSIX, &rdev->flags))
+ bnxt_free_msix_vecs(rdev->en_dev);
bnxt_re_destroy_chip_ctx(rdev);
- if (test_and_clear_bit(BNXT_RE_FLAG_NETDEV_REGISTERED, &rdev->flags)) {
- rc = bnxt_re_unregister_netdev(rdev);
- if (rc)
- ibdev_warn(&rdev->ibdev,
- "Failed to unregister with netdev: %#x", rc);
- }
+ if (test_and_clear_bit(BNXT_RE_FLAG_NETDEV_REGISTERED, &rdev->flags))
+ bnxt_unregister_dev(rdev->en_dev);
}
/* worker thread for polling periodic events. Now used for QoS programming*/
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c
index 5fa653c2458a..dbb1fa086013 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c
@@ -28,9 +28,9 @@
static DEFINE_IDA(bnxt_aux_dev_ids);
-static int bnxt_register_dev(struct bnxt_en_dev *edev,
- struct bnxt_ulp_ops *ulp_ops,
- void *handle)
+int bnxt_register_dev(struct bnxt_en_dev *edev,
+ struct bnxt_ulp_ops *ulp_ops,
+ void *handle)
{
struct net_device *dev = edev->net;
struct bnxt *bp = netdev_priv(dev);
@@ -55,8 +55,9 @@ static int bnxt_register_dev(struct bnxt_en_dev *edev,
return 0;
}
+EXPORT_SYMBOL(bnxt_register_dev);
-static int bnxt_unregister_dev(struct bnxt_en_dev *edev)
+void bnxt_unregister_dev(struct bnxt_en_dev *edev)
{
struct net_device *dev = edev->net;
struct bnxt *bp = netdev_priv(dev);
@@ -65,7 +66,7 @@ static int bnxt_unregister_dev(struct bnxt_en_dev *edev)
ulp = edev->ulp_tbl;
if (ulp->msix_requested)
- edev->en_ops->bnxt_free_msix(edev);
+ bnxt_free_msix_vecs(edev);
if (ulp->max_async_event_id)
bnxt_hwrm_func_drv_rgtr(bp, NULL, 0, true);
@@ -78,8 +79,9 @@ static int bnxt_unregister_dev(struct bnxt_en_dev *edev)
}
kfree(ulp);
edev->ulp_tbl = NULL;
- return 0;
+ return;
}
+EXPORT_SYMBOL(bnxt_unregister_dev);
static void bnxt_fill_msix_vecs(struct bnxt *bp, struct bnxt_msix_entry *ent)
{
@@ -101,7 +103,7 @@ static void bnxt_fill_msix_vecs(struct bnxt *bp, struct bnxt_msix_entry *ent)
}
}
-static int bnxt_req_msix_vecs(struct bnxt_en_dev *edev,
+int bnxt_req_msix_vecs(struct bnxt_en_dev *edev,
struct bnxt_msix_entry *ent,
int num_msix)
{
@@ -164,8 +166,9 @@ static int bnxt_req_msix_vecs(struct bnxt_en_dev *edev,
edev->flags |= BNXT_EN_FLAG_MSIX_REQUESTED;
return avail_msix;
}
+EXPORT_SYMBOL(bnxt_req_msix_vecs);
-static void bnxt_free_msix_vecs(struct bnxt_en_dev *edev)
+void bnxt_free_msix_vecs(struct bnxt_en_dev *edev)
{
struct net_device *dev = edev->net;
struct bnxt *bp = netdev_priv(dev);
@@ -184,6 +187,7 @@ static void bnxt_free_msix_vecs(struct bnxt_en_dev *edev)
return;
}
+EXPORT_SYMBOL(bnxt_free_msix_vecs);
int bnxt_get_ulp_msix_num(struct bnxt *bp)
{
@@ -218,7 +222,7 @@ int bnxt_get_ulp_stat_ctxs(struct bnxt *bp)
return 0;
}
-static int bnxt_send_msg(struct bnxt_en_dev *edev,
+int bnxt_send_msg(struct bnxt_en_dev *edev,
struct bnxt_fw_msg *fw_msg)
{
struct net_device *dev = edev->net;
@@ -252,6 +256,7 @@ static int bnxt_send_msg(struct bnxt_en_dev *edev,
hwrm_req_drop(bp, req);
return rc;
}
+EXPORT_SYMBOL(bnxt_send_msg);
static void bnxt_ulp_get(struct bnxt_ulp *ulp)
{
@@ -310,14 +315,11 @@ void bnxt_ulp_sriov_cfg(struct bnxt *bp, int num_vfs)
if (!edev)
return;
- rcu_read_lock();
- ops = rcu_dereference(ulp->ulp_ops);
- if (!ops || !ops->ulp_sriov_config) {
- rcu_read_unlock();
+ ops = rtnl_dereference(ulp->ulp_ops);
+ if (!ops || !ops->ulp_sriov_config)
return;
- }
+
bnxt_ulp_get(ulp);
- rcu_read_unlock();
ops->ulp_sriov_config(ulp->handle, num_vfs);
bnxt_ulp_put(ulp);
}
@@ -384,10 +386,9 @@ void bnxt_ulp_async_events(struct bnxt *bp, struct hwrm_async_event_cmpl *cmpl)
if (!edev)
return;
- rcu_read_lock();
ulp = edev->ulp_tbl;
- ops = rcu_dereference(ulp->ulp_ops);
+ ops = rtnl_dereference(ulp->ulp_ops);
if (!ops || !ops->ulp_async_notifier)
return;
if (!ulp->async_events_bmap || event_id > ulp->max_async_event_id)
@@ -397,35 +398,8 @@ void bnxt_ulp_async_events(struct bnxt *bp, struct hwrm_async_event_cmpl *cmpl)
smp_rmb();
if (test_bit(event_id, ulp->async_events_bmap))
ops->ulp_async_notifier(ulp->handle, cmpl);
- rcu_read_unlock();
-}
-
-static int bnxt_register_async_events(struct bnxt_en_dev *edev,
- unsigned long *events_bmap,
- u16 max_id)
-{
- struct net_device *dev = edev->net;
- struct bnxt *bp = netdev_priv(dev);
- struct bnxt_ulp *ulp;
-
- ulp = edev->ulp_tbl;
- ulp->async_events_bmap = events_bmap;
- /* Make sure bnxt_ulp_async_events() sees this order */
- smp_wmb();
- ulp->max_async_event_id = max_id;
- bnxt_hwrm_func_drv_rgtr(bp, events_bmap, max_id + 1, true);
- return 0;
}
-static const struct bnxt_en_ops bnxt_en_ops_tbl = {
- .bnxt_register_device = bnxt_register_dev,
- .bnxt_unregister_device = bnxt_unregister_dev,
- .bnxt_request_msix = bnxt_req_msix_vecs,
- .bnxt_free_msix = bnxt_free_msix_vecs,
- .bnxt_send_fw_msg = bnxt_send_msg,
- .bnxt_register_fw_async_events = bnxt_register_async_events,
-};
-
void bnxt_aux_dev_free(struct bnxt *bp)
{
kfree(bp->aux_dev);
@@ -494,7 +468,6 @@ void bnxt_aux_dev_release(struct device *dev)
container_of(dev, struct bnxt_aux_dev, aux_dev.dev);
struct bnxt *bp = netdev_priv(bnxt_adev->edev->net);
- bnxt_adev->edev->en_ops = NULL;
kfree(bnxt_adev->edev);
bnxt_adev->edev = NULL;
bp->edev = NULL;
@@ -502,7 +475,6 @@ void bnxt_aux_dev_release(struct device *dev)
static inline void bnxt_set_edev_info(struct bnxt_en_dev *edev, struct bnxt *bp)
{
- edev->en_ops = &bnxt_en_ops_tbl;
edev->net = bp->dev;
edev->pdev = bp->pdev;
edev->l2_db_size = bp->db_size;
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h
index 357f8fde5d61..42e324635e6b 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h
@@ -47,7 +47,7 @@ struct bnxt_fw_msg {
struct bnxt_ulp {
void *handle;
- struct bnxt_ulp_ops __rcu *ulp_ops;
+ struct bnxt_ulp_ops *ulp_ops;
unsigned long *async_events_bmap;
u16 max_async_event_id;
u16 msix_requested;
@@ -65,7 +65,6 @@ struct bnxt_en_dev {
BNXT_EN_FLAG_ROCEV2_CAP)
#define BNXT_EN_FLAG_MSIX_REQUESTED 0x4
#define BNXT_EN_FLAG_ULP_STOPPED 0x8
- const struct bnxt_en_ops *en_ops;
struct bnxt_ulp *ulp_tbl;
int l2_db_size; /* Doorbell BAR size in
* bytes mapped by L2
@@ -77,19 +76,6 @@ struct bnxt_en_dev {
*/
};
-struct bnxt_en_ops {
- int (*bnxt_register_device)(struct bnxt_en_dev *edev,
- struct bnxt_ulp_ops *ulp_ops, void *handle);
- int (*bnxt_unregister_device)(struct bnxt_en_dev *edev);
- int (*bnxt_request_msix)(struct bnxt_en_dev *edev,
- struct bnxt_msix_entry *ent, int num_msix);
- void (*bnxt_free_msix)(struct bnxt_en_dev *edev);
- int (*bnxt_send_fw_msg)(struct bnxt_en_dev *edev,
- struct bnxt_fw_msg *fw_msg);
- int (*bnxt_register_fw_async_events)(struct bnxt_en_dev *edev,
- unsigned long *events_bmap, u16 max_id);
-};
-
static inline bool bnxt_ulp_registered(struct bnxt_en_dev *edev)
{
if (edev && edev->ulp_tbl)
@@ -112,4 +98,12 @@ int bnxt_rdma_aux_device_add(struct bnxt *bp);
void bnxt_rdma_aux_device_uninit(struct bnxt_aux_dev *bnxt_adev);
void bnxt_rdma_aux_device_init(struct bnxt *bp);
void bnxt_aux_dev_free(struct bnxt *bp);
+
+int bnxt_register_dev(struct bnxt_en_dev *edev, struct bnxt_ulp_ops *ulp_ops,
+ void *handle);
+void bnxt_unregister_dev(struct bnxt_en_dev *edev);
+int bnxt_req_msix_vecs(struct bnxt_en_dev *edev, struct bnxt_msix_entry *ent,
+ int num_msix);
+void bnxt_free_msix_vecs(struct bnxt_en_dev *edev);
+int bnxt_send_msg(struct bnxt_en_dev *edev, struct bnxt_fw_msg *fw_msg);
#endif
--
2.37.0 (Apple Git-136)
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next prev parent reply other threads:[~2022-10-25 17:31 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-24 23:14 [PATCH 0/2] Add Auxiliary driver support Ajit Khaparde
2022-07-24 23:14 ` [PATCH 1/2] net/bnxt: Add auxiliary " Ajit Khaparde
2022-08-02 12:50 ` kernel test robot
2022-07-24 23:14 ` [PATCH 2/2] RDMA/bnxt_re: Use auxiliary driver interface Ajit Khaparde
2022-07-25 12:15 ` Leon Romanovsky
2022-07-26 4:58 ` Ajit Khaparde
2022-07-26 5:36 ` Leon Romanovsky
2022-07-26 14:31 ` Ajit Khaparde
2022-10-25 17:31 ` [PATCH v2 0/6] Add Auxiliary driver support Ajit Khaparde
2022-10-25 17:31 ` [PATCH v2 1/6] bnxt_en: Add auxiliary " Ajit Khaparde
2022-10-25 17:31 ` [PATCH v2 2/6] RDMA/bnxt_re: Use auxiliary driver interface Ajit Khaparde
2022-10-26 9:24 ` Leon Romanovsky
2022-10-26 15:58 ` Ajit Khaparde
2022-11-04 16:27 ` [PATCH v3 0/6] Add Auxiliary driver support Ajit Khaparde
2022-11-04 16:27 ` [PATCH v3 1/6] bnxt_en: Add auxiliary " Ajit Khaparde
2022-11-08 7:21 ` kernel test robot
2022-11-04 16:27 ` [PATCH v3 2/6] RDMA/bnxt_re: Use auxiliary driver interface Ajit Khaparde
2022-11-04 16:27 ` [PATCH v3 3/6] bnxt_en: Remove usage of ulp_id Ajit Khaparde
2022-11-04 16:27 ` [PATCH v3 4/6] bnxt_en: Use direct API instead of indirection Ajit Khaparde
2022-11-04 16:27 ` [PATCH v3 5/6] bnxt_en: Use auxiliary bus calls over proprietary calls Ajit Khaparde
2022-11-07 6:41 ` Leon Romanovsky
2022-11-09 18:45 ` Ajit Khaparde
2022-11-04 16:27 ` [PATCH v3 6/6] bnxt_en: Remove struct bnxt access from RoCE driver Ajit Khaparde
2022-11-07 6:37 ` [PATCH v3 0/6] Add Auxiliary driver support Leon Romanovsky
2022-11-07 16:06 ` Jakub Kicinski
2022-11-07 17:26 ` Leon Romanovsky
2022-11-07 18:21 ` Ajit Khaparde
2022-10-25 17:31 ` [PATCH v2 3/6] bnxt_en: Remove usage of ulp_id Ajit Khaparde
2022-10-26 0:57 ` kernel test robot
2022-10-25 17:31 ` Ajit Khaparde [this message]
2022-10-27 17:56 ` [PATCH v2 4/6] bnxt_en: Use direct API instead of indirection kernel test robot
2022-10-25 17:31 ` [PATCH v2 5/6] bnxt_en: Use auxiliary bus calls over proprietary calls Ajit Khaparde
2022-10-25 21:18 ` kernel test robot
2022-10-26 3:21 ` kernel test robot
2022-10-25 17:31 ` [PATCH v2 6/6] bnxt_en: Remove struct bnxt access from RoCE driver Ajit Khaparde
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