diff options
| author | Kalesh AP <kalesh-anakkur.purayil@broadcom.com> | 2024-05-01 03:30:55 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-05-02 17:27:21 +0300 |
| commit | 3c163f35bd50314d4e70ed9e83e1d8d83c473325 (patch) | |
| tree | 975a25cc25a3945f3064435262d2482aa3a73fe7 /drivers/net/ethernet/broadcom/bnxt/bnxt.h | |
| parent | de21ec442d411b17a2386cb6683acd18b047506d (diff) | |
| download | linux-3c163f35bd50314d4e70ed9e83e1d8d83c473325.tar.xz | |
bnxt_en: Optimize recovery path ULP locking in the driver
In the error recovery path (AER, firmware recovery, etc), the
driver notifies the RoCE driver via ULP_STOP before the reset
and via ULP_START after the reset, all under RTNL_LOCK. The
RoCE driver can take a long time if there are a lot of QPs to
destroy, so it is not ideal to hold the global RTNL lock.
Rely on the new en_dev_lock mutex instead for ULP_STOP and
ULP_START. For the most part, we move the ULP_STOP call before
we take the RTNL lock and move the ULP_START after RTNL unlock.
Note that SRIOV re-enablement must be done after ULP_START
or RoCE on the VFs will not resume properly after reset.
The one scenario in bnxt_hwrm_if_change() where the RTNL lock
is already taken in the .ndo_open() context requires the ULP
restart to be deferred to the bnxt_sp_task() workqueue.
Reviewed-by: Selvin Thyparampil Xavier <selvin.xavier@broadcom.com>
Reviewed-by: Vikas Gupta <vikas.gupta@broadcom.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240501003056.100607-6-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/broadcom/bnxt/bnxt.h')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h index 631b0039d72b..1e15a25b77c7 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h @@ -2440,6 +2440,7 @@ struct bnxt { #define BNXT_LINK_CFG_CHANGE_SP_EVENT 21 #define BNXT_THERMAL_THRESHOLD_SP_EVENT 22 #define BNXT_FW_ECHO_REQUEST_SP_EVENT 23 +#define BNXT_RESTART_ULP_SP_EVENT 24 struct delayed_work fw_reset_task; int fw_reset_state; |