bnxt_en: Add a mutex to synchronize ULP operations

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The current scheme relies heavily on the RTNL lock for all ULP
operations between the L2 and the RoCE driver.  Add a new en_dev_lock
mutex so that the asynchronous ULP_STOP and ULP_START operations
can be serialized with bnxt_register_dev() and bnxt_unregister_dev()
calls without relying on the RTNL lock.  The next patch will remove
the RTNL lock from the ULP_STOP and ULP_START calls.

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/20240501003056.100607-5-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Kalesh AP 2024-04-30 17:30:54 -07:00 • committed by Jakub Kicinski

parent f79d7a9f1c

commit de21ec442d

2 changed files with 22 additions and 1 deletions

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20

drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c

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3

drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h

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