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bnxt_en: Restore default stat ctxs for ULP when resource is available 

During resource reservation, if the L2 driver does not have enough
MSIX vectors to provide to the RoCE driver, it sets the stat ctxs for
ULP also to 0 so that we don't have to reserve it unnecessarily.

However, subsequently the user may reduce L2 rings thereby freeing up
some resources that the L2 driver can now earmark for RoCE. In this
case, the driver should restore the default ULP stat ctxs to make
sure that all RoCE resources are ready for use.

The RoCE driver may fail to initialize in this scenario without this
fix.

Fixes: d630624ebd ("bnxt_en: Utilize ulp client resources if RoCE is not registered")
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20260331065138.948205-4-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Pavan Chebbi 2026-03-30 23:51:38 -07:00 committed by Jakub Kicinski
parent e4bf81dcad
commit 071dbfa304
1 changed files with 2 additions and 0 deletions
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2
drivers/net/ethernet/broadcom/bnxt/bnxt.c
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@ -8045,6 +8045,8 @@ static int __bnxt_reserve_rings(struct bnxt *bp)
ulp_msix = bnxt_get_avail_msix(bp, bp->ulp_num_msix_want); ulp_msix = bnxt_get_avail_msix(bp, bp->ulp_num_msix_want);
if (!ulp_msix) if (!ulp_msix)
bnxt_set_ulp_stat_ctxs(bp, 0); bnxt_set_ulp_stat_ctxs(bp, 0);
else
bnxt_set_dflt_ulp_stat_ctxs(bp);
if (ulp_msix > bp->ulp_num_msix_want) if (ulp_msix > bp->ulp_num_msix_want)
ulp_msix = bp->ulp_num_msix_want; ulp_msix = bp->ulp_num_msix_want;