diff options
| author |   Michael Chan <michael.chan@broadcom.com> | 2025-01-07 08:15:49 +0530 |
|---|---|---|
| committer |   Leon Romanovsky <leon@kernel.org> | 2025-01-14 03:39:46 -0500 |
| commit | 184fe6f2382babdc63f07315c8accea258476070 (patch) | |
| tree | 4a652c7170ac2814bd8650a5918da2f88bb48fe9 | |
| parent | RDMA/mlx5: Fix indirect mkey ODP page count (diff) | |
| download | wireguard-linux-184fe6f2382babdc63f07315c8accea258476070.tar.xz wireguard-linux-184fe6f2382babdc63f07315c8accea258476070.zip | |
bnxt_en: Add ULP call to notify async events
When the driver receives an async event notification from the Firmware,
we make the new ulp_async_notifier() call to inform the RDMA driver that
a firmware async event has been received. RDMA driver can then take
necessary actions based on the event type.
In the next patch, we will implement the ulp_async_notifier() callbacks
in the RDMA driver.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Link: https://patch.msgid.link/20250107024553.2926983-2-kalesh-anakkur.purayil@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt.c | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c | 28 | ||||
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h | 2 |
3 files changed, 31 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 4ec4934a4edd..25850730071b 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -2857,6 +2857,7 @@ static int bnxt_async_event_process(struct bnxt *bp, } __bnxt_queue_sp_work(bp); async_event_process_exit: + bnxt_ulp_async_events(bp, cmpl); return 0; } diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c index b771c84cdd89..59c280634bc5 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c @@ -345,6 +345,34 @@ void bnxt_ulp_irq_restart(struct bnxt *bp, int err) } } +void bnxt_ulp_async_events(struct bnxt *bp, struct hwrm_async_event_cmpl *cmpl) +{ + u16 event_id = le16_to_cpu(cmpl->event_id); + struct bnxt_en_dev *edev = bp->edev; + struct bnxt_ulp_ops *ops; + struct bnxt_ulp *ulp; + + if (!bnxt_ulp_registered(edev)) + return; + ulp = edev->ulp_tbl; + + rcu_read_lock(); + + ops = rcu_dereference(ulp->ulp_ops); + if (!ops || !ops->ulp_async_notifier) + goto exit_unlock_rcu; + if (!ulp->async_events_bmap || event_id > ulp->max_async_event_id) + goto exit_unlock_rcu; + + /* Read max_async_event_id first before testing the bitmap. */ + smp_rmb(); + + if (test_bit(event_id, ulp->async_events_bmap)) + ops->ulp_async_notifier(ulp->handle, cmpl); +exit_unlock_rcu: + rcu_read_unlock(); +} + int bnxt_register_async_events(struct bnxt_en_dev *edev, unsigned long *events_bmap, u16 max_id) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h index 5d6aac60f236..a21294cf197b 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h @@ -30,6 +30,8 @@ struct bnxt_msix_entry { }; struct bnxt_ulp_ops { + /* async_notifier() cannot sleep (in BH context) */ + void (*ulp_async_notifier)(void *, struct hwrm_async_event_cmpl *); void (*ulp_irq_stop)(void *); void (*ulp_irq_restart)(void *, struct bnxt_msix_entry *); }; |