diff mbox series

[net,2/5] bnxt_en: Fix bnxt_reinit_after_abort() code path

Message ID 1657592778-12730-3-git-send-email-michael.chan@broadcom.com (mailing list archive)
State Accepted
Commit 4279414bff8af9898e8c53ae6c5bc17f68ad67b7
Delegated to: Netdev Maintainers
Headers show
Series bnxt_en: 5 Bug fixes | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for net
netdev/fixes_present success Fixes tag present in non-next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 1 this patch: 1
netdev/cc_maintainers fail 1 blamed authors not CCed: willemb@google.com; 3 maintainers not CCed: willemb@google.com pabeni@redhat.com edumazet@google.com
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success Fixes tag looks correct
netdev/build_allmodconfig_warn success Errors and warnings before: 1 this patch: 1
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 9 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Michael Chan July 12, 2022, 2:26 a.m. UTC
bnxt_reinit_after_abort() is called during ifup when a previous
FW reset sequence has aborted or a previous ifup has failed after
detecting FW reset.  In all cases, it is safe to assume that a
previous FW reset has completed and the driver may not have fully
reinitialized.

Prior to this patch, it is assumed that the
FUNC_DRV_IF_CHANGE_RESP_FLAGS_HOT_FW_RESET_DONE flag will always be
set by the firmware in bnxt_hwrm_if_change().  This may not be true if
the driver has already attempted to register with the firmware.  The
firmware may not set the RESET_DONE flag again after the driver has
registered, assuming that the driver has seen the flag already.

Fix it to always go through the FW reset initialization path if
the BNXT_STATE_FW_RESET_DET flag is set.  This flag is always set
by the driver after successfully going through bnxt_reinit_after_abort().

Fixes: 6882c36cf82e ("bnxt_en: attempt to reinitialize after aborted reset")
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 7ba181ccaac2..cf9b00576ed3 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -10065,7 +10065,8 @@  static int bnxt_hwrm_if_change(struct bnxt *bp, bool up)
 
 	if (flags & FUNC_DRV_IF_CHANGE_RESP_FLAGS_RESC_CHANGE)
 		resc_reinit = true;
-	if (flags & FUNC_DRV_IF_CHANGE_RESP_FLAGS_HOT_FW_RESET_DONE)
+	if (flags & FUNC_DRV_IF_CHANGE_RESP_FLAGS_HOT_FW_RESET_DONE ||
+	    test_bit(BNXT_STATE_FW_RESET_DET, &bp->state))
 		fw_reset = true;
 	else
 		bnxt_remap_fw_health_regs(bp);