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bnxt_en: Query FW parameters when the CAPS_CHANGE bit is set

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[ Upstream commit a6c81e32aeacbfd530d576fa401edd506ec966ef ]

Newer FW can set the CAPS_CHANGE flag during ifup if some capabilities
or configurations have changed.  For example, the CoS queue
configurations may have changed.  Support this new flag by treating it
almost like FW reset.  The driver will essentially rediscover all
features and capabilities, reconfigure all backing store context memory,
reset everything to default, and reserve all resources.

Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: shantiprasad shettar <shantiprasad.shettar@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20250310183129.3154117-5-michael.chan@broadcom.com
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
shantiprasad shettar
2025-03-10 11:31:26 -07:00
committed by Greg Kroah-Hartman
parent 3425308429
commit 5cdd304662
1 changed files with 6 additions and 2 deletions
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8
drivers/net/ethernet/broadcom/bnxt/bnxt.c
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@@ -11783,6 +11783,7 @@ static int bnxt_hwrm_if_change(struct bnxt *bp, bool up)
struct hwrm_func_drv_if_change_input *req;
bool fw_reset = !bp->irq_tbl;
bool resc_reinit = false;
bool caps_change = false;
int rc, retry = 0;
u32 flags = 0;
@@ -11838,8 +11839,11 @@ static int bnxt_hwrm_if_change(struct bnxt *bp, bool up)
set_bit(BNXT_STATE_ABORT_ERR, &bp->state);
return -ENODEV;
}
if (resc_reinit || fw_reset) {
if (fw_reset) {
if (flags & FUNC_DRV_IF_CHANGE_RESP_FLAGS_CAPS_CHANGE)
caps_change = true;
if (resc_reinit || fw_reset || caps_change) {
if (fw_reset || caps_change) {
set_bit(BNXT_STATE_FW_RESET_DET, &bp->state);
if (!test_bit(BNXT_STATE_IN_FW_RESET, &bp->state))
bnxt_ulp_irq_stop(bp);