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bnxt_en: Add ethtool reset method

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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>
This commit is contained in:
Vasundhara Volam 2017-10-26 11:51:26 -04:00 committed by David S. Miller
parent 7eb9bb3a0c
commit 49f7972fd1
2 changed files with 38 additions and 1 deletions
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37
drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
View File

@ -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,
};

2
drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.h
View File

@ -34,6 +34,8 @@ struct bnxt_led_cfg {
#define BNXT_LED_DFLT_ENABLES(x) \
cpu_to_le32(BNXT_LED_DFLT_ENA << (BNXT_LED_DFLT_ENA_SHIFT * (x)))
#define BNXT_FW_RESET_CHIP 0xffff
extern const struct ethtool_ops bnxt_ethtool_ops;
u32 _bnxt_fw_to_ethtool_adv_spds(u16, u8);