Commit bf2afe0f authored by Michael Chan's avatar Michael Chan Committed by Jakub Kicinski
Browse files

bnxt_en: Skip reading PXP registers during ethtool -d if unsupported 



Newer firmware does not allow reading the PXP registers during
ethtool -d, so skip the firmware call in that case.  Userspace
(bnxt.c) always expects the register block to be populated so
zeroes will be returned instead.

Reviewed-by: default avatarAjit Khaparde <ajit.khaparde@broadcom.com>
Reviewed-by: default avatarKalesh AP <kalesh-anakkur.purayil@broadcom.com>
Reviewed-by: default avatarSomnath Kotur <somnath.kotur@broadcom.com>
Reviewed-by: default avatarPavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: default avatarMichael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20241217182620.2454075-6-michael.chan@broadcom.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent b45a8505

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

+2 −1
Original line number Diff line number Diff line
@@ -2050,6 +2050,7 @@ static void bnxt_get_regs(struct net_device *dev, struct ethtool_regs *regs, 
	int rc;



	regs->version = 0;

	if (!(bp->fw_dbg_cap & DBG_QCAPS_RESP_FLAGS_REG_ACCESS_RESTRICTED))

		bnxt_dbg_hwrm_rd_reg(bp, 0, BNXT_PXP_REG_LEN / 4, _p);



	if (!(bp->fw_cap & BNXT_FW_CAP_PCIE_STATS_SUPPORTED))