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Commit 49f7972f authored by Vasundhara Volam's avatar Vasundhara Volam Committed by David S. Miller
Browse files

bnxt_en: Add ethtool reset method 



This is a firmware internal reset after driver is unloaded.

Signed-off-by: default avatarVasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: default avatarMichael Chan <michael.chan@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 7eb9bb3a

drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c

+36 −1
Original line number Diff line number Diff line
@@ -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,

};

drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.h

+2 −0
Original line number Diff line number Diff line
@@ -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);