void
siena_nic_unprobe(
__in efx_nic_t *enp)
{
#if EFSYS_OPT_MON_STATS
mcdi_mon_cfg_free(enp);
#endif /* EFSYS_OPT_MON_STATS */
(void) efx_mcdi_drv_attach(enp, B_FALSE);
}
static void siena_remove_nic(struct efx_nic *efx)
{
efx_nic_free_buffer(efx, &efx->irq_status);
siena_reset_hw(efx, RESET_TYPE_ALL);
/* Relinquish the device back to the BMC */
if (efx_nic_has_mc(efx))
efx_mcdi_drv_attach(efx, false, NULL);
/* Tear down the private nic state */
kfree(efx->nic_data);
efx->nic_data = NULL;
}
__checkReturn efx_rc_t
siena_nic_probe(
__in efx_nic_t *enp)
{
efx_port_t *epp = &(enp->en_port);
efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
siena_link_state_t sls;
unsigned int mask;
efx_oword_t oword;
efx_rc_t rc;
EFSYS_ASSERT3U(enp->en_family, ==, EFX_FAMILY_SIENA);
/* Test BIU */
if ((rc = efx_nic_biu_test(enp)) != 0)
goto fail1;
/* Clear the region register */
EFX_POPULATE_OWORD_4(oword,
FRF_AZ_ADR_REGION0, 0,
FRF_AZ_ADR_REGION1, (1 << 16),
FRF_AZ_ADR_REGION2, (2 << 16),
FRF_AZ_ADR_REGION3, (3 << 16));
EFX_BAR_WRITEO(enp, FR_AZ_ADR_REGION_REG, &oword);
/* Read clear any assertion state */
if ((rc = efx_mcdi_read_assertion(enp)) != 0)
goto fail2;
/* Exit the assertion handler */
if ((rc = efx_mcdi_exit_assertion_handler(enp)) != 0)
goto fail3;
/* Wrestle control from the BMC */
if ((rc = efx_mcdi_drv_attach(enp, B_TRUE)) != 0)
goto fail4;
if ((rc = siena_board_cfg(enp)) != 0)
goto fail5;
if ((rc = siena_phy_cfg(enp)) != 0)
goto fail6;
/* Obtain the default PHY advertised capabilities */
if ((rc = siena_nic_reset(enp)) != 0)
goto fail7;
if ((rc = siena_phy_get_link(enp, &sls)) != 0)
goto fail8;
epp->ep_default_adv_cap_mask = sls.sls_adv_cap_mask;
epp->ep_adv_cap_mask = sls.sls_adv_cap_mask;
#if EFSYS_OPT_VPD || EFSYS_OPT_NVRAM
if ((rc = siena_nic_get_partn_mask(enp, &mask)) != 0)
goto fail9;
enp->en_u.siena.enu_partn_mask = mask;
#endif
#if EFSYS_OPT_MAC_STATS
/* Wipe the MAC statistics */
if ((rc = efx_mcdi_mac_stats_clear(enp)) != 0)
goto fail10;
#endif
#if EFSYS_OPT_LOOPBACK
if ((rc = efx_mcdi_get_loopback_modes(enp)) != 0)
goto fail11;
#endif
#if EFSYS_OPT_MON_STATS
if ((rc = mcdi_mon_cfg_build(enp)) != 0)
goto fail12;
#endif
encp->enc_features = enp->en_features;
return (0);
#if EFSYS_OPT_MON_STATS
fail12:
EFSYS_PROBE(fail12);
#endif
#if EFSYS_OPT_LOOPBACK
fail11:
EFSYS_PROBE(fail11);
#endif
#if EFSYS_OPT_MAC_STATS
fail10:
EFSYS_PROBE(fail10);
#endif
#if EFSYS_OPT_VPD || EFSYS_OPT_NVRAM
fail9:
EFSYS_PROBE(fail9);
#endif
fail8:
EFSYS_PROBE(fail8);
fail7:
EFSYS_PROBE(fail7);
fail6:
EFSYS_PROBE(fail6);
fail5:
EFSYS_PROBE(fail5);
fail4:
EFSYS_PROBE(fail4);
fail3:
EFSYS_PROBE(fail3);
fail2:
EFSYS_PROBE(fail2);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
static int siena_probe_nic(struct efx_nic *efx)
{
struct siena_nic_data *nic_data;
bool already_attached = 0;
efx_oword_t reg;
int rc;
/* Allocate storage for hardware specific data */
nic_data = kzalloc(sizeof(struct siena_nic_data), GFP_KERNEL);
if (!nic_data)
return -ENOMEM;
efx->nic_data = nic_data;
if (efx_nic_fpga_ver(efx) != 0) {
netif_err(efx, probe, efx->net_dev,
"Siena FPGA not supported\n");
rc = -ENODEV;
goto fail1;
}
efx_reado(efx, ®, FR_AZ_CS_DEBUG);
efx->net_dev->dev_id = EFX_OWORD_FIELD(reg, FRF_CZ_CS_PORT_NUM) - 1;
/* Initialise MCDI */
nic_data->mcdi_smem = ioremap_nocache(efx->membase_phys +
FR_CZ_MC_TREG_SMEM,
FR_CZ_MC_TREG_SMEM_STEP *
FR_CZ_MC_TREG_SMEM_ROWS);
if (!nic_data->mcdi_smem) {
netif_err(efx, probe, efx->net_dev,
"could not map MCDI at %llx+%x\n",
(unsigned long long)efx->membase_phys +
FR_CZ_MC_TREG_SMEM,
FR_CZ_MC_TREG_SMEM_STEP * FR_CZ_MC_TREG_SMEM_ROWS);
rc = -ENOMEM;
goto fail1;
}
efx_mcdi_init(efx);
/* Recover from a failed assertion before probing */
rc = efx_mcdi_handle_assertion(efx);
if (rc)
goto fail2;
/* Let the BMC know that the driver is now in charge of link and
* filter settings. We must do this before we reset the NIC */
rc = efx_mcdi_drv_attach(efx, true, &already_attached);
if (rc) {
netif_err(efx, probe, efx->net_dev,
"Unable to register driver with MCPU\n");
goto fail2;
}
if (already_attached)
/* Not a fatal error */
netif_err(efx, probe, efx->net_dev,
"Host already registered with MCPU\n");
/* Now we can reset the NIC */
rc = siena_reset_hw(efx, RESET_TYPE_ALL);
if (rc) {
netif_err(efx, probe, efx->net_dev, "failed to reset NIC\n");
goto fail3;
}
siena_init_wol(efx);
/* Allocate memory for INT_KER */
rc = efx_nic_alloc_buffer(efx, &efx->irq_status, sizeof(efx_oword_t));
if (rc)
goto fail4;
BUG_ON(efx->irq_status.dma_addr & 0x0f);
netif_dbg(efx, probe, efx->net_dev,
"INT_KER at %llx (virt %p phys %llx)\n",
(unsigned long long)efx->irq_status.dma_addr,
efx->irq_status.addr,
(unsigned long long)virt_to_phys(efx->irq_status.addr));
/* Read in the non-volatile configuration */
rc = siena_probe_nvconfig(efx);
if (rc == -EINVAL) {
netif_err(efx, probe, efx->net_dev,
"NVRAM is invalid therefore using defaults\n");
efx->phy_type = PHY_TYPE_NONE;
efx->mdio.prtad = MDIO_PRTAD_NONE;
} else if (rc) {
goto fail5;
}
return 0;
fail5:
efx_nic_free_buffer(efx, &efx->irq_status);
fail4:
fail3:
efx_mcdi_drv_attach(efx, false, NULL);
fail2:
iounmap(nic_data->mcdi_smem);
fail1:
kfree(efx->nic_data);
return rc;
}