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Merge branch 'bnxt_en-Two-bug-fixes' 

Michael Chan says:

====================
bnxt_en: Two bug fixes.

The first patch fixes AER recovery by reducing the time from several
minutes to a more reasonable 20 - 30 seconds.  The second patch fixes
a possible NULL pointer crash during firmware reset.
====================

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2020-09-07 10:08:37 -07:00
parent 4ddcaf1ebb b16939b59c
commit 72bbee2aea
2 changed files with 11 additions and 6 deletions
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13
drivers/net/ethernet/broadcom/bnxt/bnxt.c
View File

@ -4305,7 +4305,7 @@ 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 (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state))
if (BNXT_NO_FW_ACCESS(bp))
return -EBUSY;
if (msg_len > BNXT_HWRM_MAX_REQ_LEN) {
@ -5723,7 +5723,7 @@ static int hwrm_ring_free_send_msg(struct bnxt *bp,
struct hwrm_ring_free_output *resp = bp->hwrm_cmd_resp_addr;
u16 error_code;
if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state))
if (BNXT_NO_FW_ACCESS(bp))
return 0;
bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_RING_FREE, cmpl_ring_id, -1);
@ -7817,7 +7817,7 @@ static int bnxt_set_tpa(struct bnxt *bp, bool set_tpa)
if (set_tpa)
tpa_flags = bp->flags & BNXT_FLAG_TPA;
else if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state))
else if (BNXT_NO_FW_ACCESS(bp))
return 0;
for (i = 0; i < bp->nr_vnics; i++) {
rc = bnxt_hwrm_vnic_set_tpa(bp, i, tpa_flags);
@ -11779,6 +11779,10 @@ static void bnxt_remove_one(struct pci_dev *pdev)
if (BNXT_PF(bp))
bnxt_sriov_disable(bp);
clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state);
bnxt_cancel_sp_work(bp);
bp->sp_event = 0;
bnxt_dl_fw_reporters_destroy(bp, true);
if (BNXT_PF(bp))
devlink_port_type_clear(&bp->dl_port);
@ -11786,9 +11790,6 @@ static void bnxt_remove_one(struct pci_dev *pdev)
unregister_netdev(dev);
bnxt_dl_unregister(bp);
bnxt_shutdown_tc(bp);
clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state);
bnxt_cancel_sp_work(bp);
bp->sp_event = 0;
bnxt_clear_int_mode(bp);
bnxt_hwrm_func_drv_unrgtr(bp);

4
drivers/net/ethernet/broadcom/bnxt/bnxt.h
View File

@ -1737,6 +1737,10 @@ struct bnxt {
#define BNXT_STATE_FW_FATAL_COND 6
#define BNXT_STATE_DRV_REGISTERED 7
#define BNXT_NO_FW_ACCESS(bp) \
(test_bit(BNXT_STATE_FW_FATAL_COND, &(bp)->state) || \
pci_channel_offline((bp)->pdev))
struct bnxt_irq *irq_tbl;
int total_irqs;
u8 mac_addr[ETH_ALEN];