diff mbox series

[net,3/6] bnxt_en: Query default VLAN before VNIC setup on a VF

Message ID 20230607075409.228450-4-michael.chan@broadcom.com (mailing list archive)
State Accepted
Commit 1a9e4f501bc6ff1b6ecb60df54fbf2b54db43bfe
Delegated to: Netdev Maintainers
Headers show
Series bnxt_en: Bug fixes | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net
netdev/fixes_present success Fixes tag present in non-next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 9 this patch: 9
netdev/cc_maintainers success CCed 5 of 5 maintainers
netdev/build_clang success Errors and warnings before: 8 this patch: 8
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
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: 9 this patch: 9
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 June 7, 2023, 7:54 a.m. UTC 
From: Somnath Kotur <somnath.kotur@broadcom.com>

We need to call bnxt_hwrm_func_qcfg() on a VF to query the default
VLAN that may be setup by the PF.  If a default VLAN is enabled,
the VF cannot support VLAN acceleration on the receive side and
the VNIC must be setup to strip out the default VLAN tag.  If a
default VLAN is not enabled, the VF can support VLAN acceleration
on the receive side.  The VNIC should be set up to strip or not
strip the VLAN based on the RX VLAN acceleration setting.

Without this call to determine the default VLAN before calling
bnxt_setup_vnic(), the VNIC may not be set up correctly.  For
example, bnxt_setup_vnic() may set up to strip the VLAN tag based
on stale default VLAN information.  If RX VLAN acceleration is
not enabled, the VLAN tag will be incorrectly stripped and the
RX data path will not work correctly.

Fixes: cf6645f8ebc6 ("bnxt_en: Add function for VF driver to query default VLAN.")
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 4aa490cb2fe0..2d39b43ee7cd 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -8813,6 +8813,9 @@  static int bnxt_init_chip(struct bnxt *bp, bool irq_re_init)
 		goto err_out;
 	}
 
+	if (BNXT_VF(bp))
+		bnxt_hwrm_func_qcfg(bp);
+
 	rc = bnxt_setup_vnic(bp, 0);
 	if (rc)
 		goto err_out;