[M/N][PATCH 1/1] bnxt_en: Clear resource reservation during resume

[Aaron Ma]

From: Somnath Kotur <somnath.kotur at broadcom.com>

BugLink: https://bugs.launchpad.net/bugs/2047518

We are issuing HWRM_FUNC_RESET cmd to reset the device including
all reserved resources, but not clearing the reservations
within the driver struct. As a result, when the driver re-initializes
as part of resume, it believes that there is no need to do any
resource reservation and goes ahead and tries to allocate rings
which will eventually fail beyond a certain number pre-reserved by
the firmware.

Fixes: 674f50a5b026 ("bnxt_en: Implement new method to reserve rings.")
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil at broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde at broadcom.com>
Reviewed-by: Andy Gospodarek <andrew.gospodarek at broadcom.com>
Signed-off-by: Somnath Kotur <somnath.kotur at broadcom.com>
Signed-off-by: Michael Chan <michael.chan at broadcom.com>
Link: https://lore.kernel.org/r/20231208001658.14230-2-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba at kernel.org>
(cherry picked from commit 9ef7c58f5abe41e6d91f37f28fe2d851ffedd92a)
Signed-off-by: Aaron Ma <aaron.ma at canonical.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 7551aa8068f8f..4d2296f201adb 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -13897,6 +13897,8 @@ static int bnxt_resume(struct device *device)
 	if (rc)
 		goto resume_exit;
 
+	bnxt_clear_reservations(bp, true);
+
 	if (bnxt_hwrm_func_drv_rgtr(bp, NULL, 0, false)) {
 		rc = -ENODEV;
 		goto resume_exit;
-- 
2.40.1