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Commit 0f5c0845 authored by Shradha Shah's avatar Shradha Shah Committed by David S. Miller
Browse files

sfc: Add sysfs entry for flags (link control and primary) 



On  every adapter there will be one primary PF per adaptor and
one link control PF per port.

Signed-off-by: default avatarShradha Shah <sshah@solarflare.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent c9012e00

drivers/net/ethernet/sfc/ef10.c

+51 −7
Original line number Diff line number Diff line
@@ -246,6 +246,34 @@ static int efx_ef10_get_mac_address_vf(struct efx_nic *efx, u8 *mac_address) 
	return 0;

}



static ssize_t efx_ef10_show_link_control_flag(struct device *dev,

					       struct device_attribute *attr,

					       char *buf)

{

	struct efx_nic *efx = pci_get_drvdata(to_pci_dev(dev));



	return sprintf(buf, "%d\n",

		       ((efx->mcdi->fn_flags) &

			(1 << MC_CMD_DRV_ATTACH_EXT_OUT_FLAG_LINKCTRL))

		       ? 1 : 0);

}



static ssize_t efx_ef10_show_primary_flag(struct device *dev,

					  struct device_attribute *attr,

					  char *buf)

{

	struct efx_nic *efx = pci_get_drvdata(to_pci_dev(dev));



	return sprintf(buf, "%d\n",

		       ((efx->mcdi->fn_flags) &

			(1 << MC_CMD_DRV_ATTACH_EXT_OUT_FLAG_PRIMARY))

		       ? 1 : 0);

}



static DEVICE_ATTR(link_control_flag, 0444, efx_ef10_show_link_control_flag,

		   NULL);

static DEVICE_ATTR(primary_flag, 0444, efx_ef10_show_primary_flag, NULL);



static int efx_ef10_probe(struct efx_nic *efx)

{

	struct efx_ef10_nic_data *nic_data;
@@ -315,30 +343,39 @@ static int efx_ef10_probe(struct efx_nic *efx) 
	if (rc)

		goto fail3;



	rc = efx_ef10_get_pf_index(efx);

	rc = device_create_file(&efx->pci_dev->dev,

				&dev_attr_link_control_flag);

	if (rc)

		goto fail3;



	rc = device_create_file(&efx->pci_dev->dev, &dev_attr_primary_flag);

	if (rc)

		goto fail4;



	rc = efx_ef10_get_pf_index(efx);

	if (rc)

		goto fail5;



	rc = efx_ef10_init_datapath_caps(efx);

	if (rc < 0)

		goto fail3;

		goto fail5;



	efx->rx_packet_len_offset =

		ES_DZ_RX_PREFIX_PKTLEN_OFST - ES_DZ_RX_PREFIX_SIZE;



	rc = efx_mcdi_port_get_number(efx);

	if (rc < 0)

		goto fail3;

		goto fail5;

	efx->port_num = rc;

	net_dev->dev_port = rc;



	rc = efx->type->get_mac_address(efx, efx->net_dev->perm_addr);

	if (rc)

		goto fail3;

		goto fail5;



	rc = efx_ef10_get_sysclk_freq(efx);

	if (rc < 0)

		goto fail3;

		goto fail5;

	efx->timer_quantum_ns = 1536000 / rc; /* 1536 cycles */



	/* Check whether firmware supports bug 35388 workaround.
@@ -357,7 +394,7 @@ static int efx_ef10_probe(struct efx_nic *efx) 
		nic_data->workaround_35388 = enabled &

			MC_CMD_GET_WORKAROUNDS_OUT_BUG35388;

	} else if (rc != -ENOSYS && rc != -ENOENT) {

		goto fail3;

		goto fail5;

	}

	netif_dbg(efx, probe, efx->net_dev,

		  "workaround for bug 35388 is %sabled\n",
@@ -365,12 +402,16 @@ static int efx_ef10_probe(struct efx_nic *efx) 


	rc = efx_mcdi_mon_probe(efx);

	if (rc && rc != -EPERM)

		goto fail3;

		goto fail5;



	efx_ptp_probe(efx, NULL);



	return 0;



fail5:

	device_remove_file(&efx->pci_dev->dev, &dev_attr_primary_flag);

fail4:

	device_remove_file(&efx->pci_dev->dev, &dev_attr_link_control_flag);

fail3:

	efx_mcdi_fini(efx);

fail2:
@@ -613,6 +654,9 @@ static void efx_ef10_remove(struct efx_nic *efx) 
	if (!nic_data->must_restore_piobufs)

		efx_ef10_free_piobufs(efx);



	device_remove_file(&efx->pci_dev->dev, &dev_attr_primary_flag);

	device_remove_file(&efx->pci_dev->dev, &dev_attr_link_control_flag);



	efx_mcdi_fini(efx);

	efx_nic_free_buffer(efx, &nic_data->mcdi_buf);

	kfree(nic_data);