Skip to content

Commit

Permalink
sfc: Add sysfs entry for flags (link control and primary)
Browse files Browse the repository at this point in the history
On  every adapter there will be one primary PF per adaptor and
one link control PF per port.

Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
  • Loading branch information
Shradha Shah authored and David S. Miller committed Jun 2, 2015
1 parent c9012e0 commit 0f5c084
Showing 1 changed file with 51 additions and 7 deletions.
58 changes: 51 additions & 7 deletions drivers/net/ethernet/sfc/ef10.c
Original file line number Diff line number Diff line change
Expand Up @@ -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;
Expand Down Expand Up @@ -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.
Expand All @@ -357,20 +394,24 @@ 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",
nic_data->workaround_35388 ? "en" : "dis");

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:
Expand Down Expand Up @@ -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);
Expand Down

0 comments on commit 0f5c084

Please sign in to comment.