Commit b334112f authored by Vasundhara Volam's avatar Vasundhara Volam Committed by Greg Kroah-Hartman
Browse files

bnxt_en: Send HWRM_FUNC_RESET fw command unconditionally.



[ Upstream commit 825741b071722f1c8ad692cead562c4b5f5eaa93 ]

In the AER or firmware reset flow, if we are in fatal error state or
if pci_channel_offline() is true, we don't send any commands to the
firmware because the commands will likely not reach the firmware and
most commands don't matter much because the firmware is likely to be
reset imminently.

However, the HWRM_FUNC_RESET command is different and we should always
attempt to send it.  In the AER flow for example, the .slot_reset()
call will trigger this fw command and we need to try to send it to
effect the proper reset.

Fixes: b340dc680ed4 ("bnxt_en: Avoid sending firmware messages when AER error is detected.")
Reviewed-by: default avatarEdwin Peer <edwin.peer@broadcom.com>
Signed-off-by: default avatarVasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: default avatarMichael Chan <michael.chan@broadcom.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent f739fc7e
......@@ -4188,7 +4188,8 @@ static int bnxt_hwrm_do_send_msg(struct bnxt *bp, void *msg, u32 msg_len,
u32 bar_offset = BNXT_GRCPF_REG_CHIMP_COMM;
u16 dst = BNXT_HWRM_CHNL_CHIMP;
if (BNXT_NO_FW_ACCESS(bp))
if (BNXT_NO_FW_ACCESS(bp) &&
le16_to_cpu(req->req_type) != HWRM_FUNC_RESET)
return -EBUSY;
if (msg_len > BNXT_HWRM_MAX_REQ_LEN) {
......
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