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bnxt_en: Check the FW's VNIC flush capability

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Check the HWRM_VNIC_QCAPS FW response for the receive engine flush
capability.  This capability indicates that we can reliably support
RX ring restart when calling HWRM_VNIC_UPDATE with MRU set to 0.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David Wei <dw@davidwei.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan 2024-08-07 22:15:15 -07:00 committed by David S. Miller
parent f2878cdeb7
commit 6e360862c0
2 changed files with 3 additions and 0 deletions
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2
drivers/net/ethernet/broadcom/bnxt/bnxt.c
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@ -6715,6 +6715,8 @@ static int bnxt_hwrm_vnic_qcaps(struct bnxt *bp)
bp->rss_cap |= BNXT_RSS_CAP_ESP_V4_RSS_CAP;
if (flags & VNIC_QCAPS_RESP_FLAGS_RSS_IPSEC_ESP_SPI_IPV6_CAP)
bp->rss_cap |= BNXT_RSS_CAP_ESP_V6_RSS_CAP;
if (flags & VNIC_QCAPS_RESP_FLAGS_RE_FLUSH_CAP)
bp->fw_cap |= BNXT_FW_CAP_VNIC_RE_FLUSH;
}
hwrm_req_drop(bp, req);
return rc;

1
drivers/net/ethernet/broadcom/bnxt/bnxt.h
View File

@ -2438,6 +2438,7 @@ struct bnxt {
#define BNXT_FW_CAP_VNIC_TUNNEL_TPA BIT_ULL(37)
#define BNXT_FW_CAP_CFA_NTUPLE_RX_EXT_IP_PROTO BIT_ULL(38)
#define BNXT_FW_CAP_CFA_RFS_RING_TBL_IDX_V3 BIT_ULL(39)
#define BNXT_FW_CAP_VNIC_RE_FLUSH BIT_ULL(40)
u32 fw_dbg_cap;