bnxt_en: Add ethtool reset method
This is a firmware internal reset after driver is unloaded.
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
index fe93625..fc32df7 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
@@ -1337,7 +1337,6 @@ static int bnxt_firmware_reset(struct net_device *dev,
bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FW_RESET, -1, -1);
- /* TODO: Support ASAP ChiMP self-reset (e.g. upon PF driver unload) */
/* TODO: Address self-reset of APE/KONG/BONO/TANG or ungraceful reset */
/* (e.g. when firmware isn't already running) */
switch (dir_type) {
@@ -1363,6 +1362,10 @@ static int bnxt_firmware_reset(struct net_device *dev,
case BNX_DIR_TYPE_BONO_PATCH:
req.embedded_proc_type = FW_RESET_REQ_EMBEDDED_PROC_TYPE_ROCE;
break;
+ case BNXT_FW_RESET_CHIP:
+ req.embedded_proc_type = FW_RESET_REQ_EMBEDDED_PROC_TYPE_CHIP;
+ req.selfrst_status = FW_RESET_REQ_SELFRST_STATUS_SELFRSTASAP;
+ break;
default:
return -EINVAL;
}
@@ -2485,6 +2488,37 @@ static void bnxt_self_test(struct net_device *dev, struct ethtool_test *etest,
}
}
+static int bnxt_reset(struct net_device *dev, u32 *flags)
+{
+ struct bnxt *bp = netdev_priv(dev);
+ int rc = 0;
+
+ if (!BNXT_PF(bp)) {
+ netdev_err(dev, "Reset is not supported from a VF\n");
+ return -EOPNOTSUPP;
+ }
+
+ if (pci_vfs_assigned(bp->pdev)) {
+ netdev_err(dev,
+ "Reset not allowed when VFs are assigned to VMs\n");
+ return -EBUSY;
+ }
+
+ if (*flags == ETH_RESET_ALL) {
+ /* This feature is not supported in older firmware versions */
+ if (bp->hwrm_spec_code < 0x10803)
+ return -EOPNOTSUPP;
+
+ rc = bnxt_firmware_reset(dev, BNXT_FW_RESET_CHIP);
+ if (!rc)
+ netdev_info(dev, "Reset request successful. Reload driver to complete reset\n");
+ } else {
+ rc = -EINVAL;
+ }
+
+ return rc;
+}
+
void bnxt_ethtool_init(struct bnxt *bp)
{
struct hwrm_selftest_qlist_output *resp = bp->hwrm_cmd_resp_addr;
@@ -2597,4 +2631,5 @@ const struct ethtool_ops bnxt_ethtool_ops = {
.nway_reset = bnxt_nway_reset,
.set_phys_id = bnxt_set_phys_id,
.self_test = bnxt_self_test,
+ .reset = bnxt_reset,
};