int efx_mcdi_mdio_read(struct efx_nic *efx, unsigned int bus,
unsigned int prtad, unsigned int devad, u16 addr,
u16 *value_out, u32 *status_out)
{
u8 inbuf[MC_CMD_MDIO_READ_IN_LEN];
u8 outbuf[MC_CMD_MDIO_READ_OUT_LEN];
size_t outlen;
int rc;
MCDI_SET_DWORD(inbuf, MDIO_READ_IN_BUS, bus);
MCDI_SET_DWORD(inbuf, MDIO_READ_IN_PRTAD, prtad);
MCDI_SET_DWORD(inbuf, MDIO_READ_IN_DEVAD, devad);
MCDI_SET_DWORD(inbuf, MDIO_READ_IN_ADDR, addr);
rc = efx_mcdi_rpc(efx, MC_CMD_MDIO_READ, inbuf, sizeof(inbuf),
outbuf, sizeof(outbuf), &outlen);
if (rc)
goto fail;
*value_out = (u16)MCDI_DWORD(outbuf, MDIO_READ_OUT_VALUE);
*status_out = MCDI_DWORD(outbuf, MDIO_READ_OUT_STATUS);
return 0;
fail:
netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
return rc;
}
int efx_mcdi_nvram_info(struct efx_nic *efx, unsigned int type,
size_t *size_out, size_t *erase_size_out,
bool *protected_out)
{
u8 inbuf[MC_CMD_NVRAM_INFO_IN_LEN];
u8 outbuf[MC_CMD_NVRAM_INFO_OUT_LEN];
size_t outlen;
int rc;
MCDI_SET_DWORD(inbuf, NVRAM_INFO_IN_TYPE, type);
rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_INFO, inbuf, sizeof(inbuf),
outbuf, sizeof(outbuf), &outlen);
if (rc)
goto fail;
if (outlen < MC_CMD_NVRAM_INFO_OUT_LEN) {
rc = -EIO;
goto fail;
}
*size_out = MCDI_DWORD(outbuf, NVRAM_INFO_OUT_SIZE);
*erase_size_out = MCDI_DWORD(outbuf, NVRAM_INFO_OUT_ERASESIZE);
*protected_out = !!(MCDI_DWORD(outbuf, NVRAM_INFO_OUT_FLAGS) &
(1 << MC_CMD_NVRAM_PROTECTED_LBN));
return 0;
fail:
netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
return rc;
}
static int efx_mcdi_mdio_read(struct net_device *net_dev,
int prtad, int devad, u16 addr)
{
struct efx_nic *efx = netdev_priv(net_dev);
MCDI_DECLARE_BUF(inbuf, MC_CMD_MDIO_READ_IN_LEN);
MCDI_DECLARE_BUF(outbuf, MC_CMD_MDIO_READ_OUT_LEN);
size_t outlen;
int rc;
MCDI_SET_DWORD(inbuf, MDIO_READ_IN_BUS, efx->mdio_bus);
MCDI_SET_DWORD(inbuf, MDIO_READ_IN_PRTAD, prtad);
MCDI_SET_DWORD(inbuf, MDIO_READ_IN_DEVAD, devad);
MCDI_SET_DWORD(inbuf, MDIO_READ_IN_ADDR, addr);
rc = efx_mcdi_rpc(efx, MC_CMD_MDIO_READ, inbuf, sizeof(inbuf),
outbuf, sizeof(outbuf), &outlen);
if (rc)
return rc;
if (MCDI_DWORD(outbuf, MDIO_READ_OUT_STATUS) !=
MC_CMD_MDIO_STATUS_GOOD)
return -EIO;
return (u16)MCDI_DWORD(outbuf, MDIO_READ_OUT_VALUE);
}
static int efx_sriov_cmd(struct efx_nic *efx, bool enable,
unsigned *vi_scale_out, unsigned *vf_total_out)
{
u8 inbuf[MC_CMD_SRIOV_IN_LEN];
u8 outbuf[MC_CMD_SRIOV_OUT_LEN];
unsigned vi_scale, vf_total;
size_t outlen;
int rc;
MCDI_SET_DWORD(inbuf, SRIOV_IN_ENABLE, enable ? 1 : 0);
MCDI_SET_DWORD(inbuf, SRIOV_IN_VI_BASE, EFX_VI_BASE);
MCDI_SET_DWORD(inbuf, SRIOV_IN_VF_COUNT, efx->vf_count);
rc = efx_mcdi_rpc(efx, MC_CMD_SRIOV, inbuf, MC_CMD_SRIOV_IN_LEN,
outbuf, MC_CMD_SRIOV_OUT_LEN, &outlen);
if (rc)
return rc;
if (outlen < MC_CMD_SRIOV_OUT_LEN)
return -EIO;
vf_total = MCDI_DWORD(outbuf, SRIOV_OUT_VF_TOTAL);
vi_scale = MCDI_DWORD(outbuf, SRIOV_OUT_VI_SCALE);
if (vi_scale > EFX_VI_SCALE_MAX)
return -EOPNOTSUPP;
if (vi_scale_out)
*vi_scale_out = vi_scale;
if (vf_total_out)
*vf_total_out = vf_total;
return 0;
}
static bool efx_mcdi_phy_poll(struct efx_nic *efx)
{
struct efx_link_state old_state = efx->link_state;
u8 outbuf[MC_CMD_GET_LINK_OUT_LEN];
int rc;
WARN_ON(!mutex_is_locked(&efx->mac_lock));
BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0);
rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0,
outbuf, sizeof(outbuf), NULL);
if (rc) {
netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n",
__func__, rc);
efx->link_state.up = false;
} else {
efx_mcdi_phy_decode_link(
efx, &efx->link_state,
MCDI_DWORD(outbuf, GET_LINK_OUT_LINK_SPEED),
MCDI_DWORD(outbuf, GET_LINK_OUT_FLAGS),
MCDI_DWORD(outbuf, GET_LINK_OUT_FCNTL));
}
return !efx_link_state_equal(&efx->link_state, &old_state);
}
static int efx_mcdi_read_assertion(struct efx_nic *efx)
{
u8 inbuf[MC_CMD_GET_ASSERTS_IN_LEN];
u8 outbuf[MC_CMD_GET_ASSERTS_OUT_LEN];
unsigned int flags, index, ofst;
const char *reason;
size_t outlen;
int retry;
int rc;
/* Attempt to read any stored assertion state before we reboot
* the mcfw out of the assertion handler. Retry twice, once
* because a boot-time assertion might cause this command to fail
* with EINTR. And once again because GET_ASSERTS can race with
* MC_CMD_REBOOT running on the other port. */
retry = 2;
do {
MCDI_SET_DWORD(inbuf, GET_ASSERTS_IN_CLEAR, 1);
rc = efx_mcdi_rpc(efx, MC_CMD_GET_ASSERTS,
inbuf, MC_CMD_GET_ASSERTS_IN_LEN,
outbuf, sizeof(outbuf), &outlen);
} while ((rc == -EINTR || rc == -EIO) && retry-- > 0);
if (rc)
return rc;
if (outlen < MC_CMD_GET_ASSERTS_OUT_LEN)
return -EIO;
/* Print out any recorded assertion state */
flags = MCDI_DWORD(outbuf, GET_ASSERTS_OUT_GLOBAL_FLAGS);
if (flags == MC_CMD_GET_ASSERTS_FLAGS_NO_FAILS)
return 0;
reason = (flags == MC_CMD_GET_ASSERTS_FLAGS_SYS_FAIL)
? "system-level assertion"
: (flags == MC_CMD_GET_ASSERTS_FLAGS_THR_FAIL)
? "thread-level assertion"
: (flags == MC_CMD_GET_ASSERTS_FLAGS_WDOG_FIRED)
? "watchdog reset"
: "unknown assertion";
netif_err(efx, hw, efx->net_dev,
"MCPU %s at PC = 0x%.8x in thread 0x%.8x\n", reason,
MCDI_DWORD(outbuf, GET_ASSERTS_OUT_SAVED_PC_OFFS),
MCDI_DWORD(outbuf, GET_ASSERTS_OUT_THREAD_OFFS));
/* Print out the registers */
ofst = MC_CMD_GET_ASSERTS_OUT_GP_REGS_OFFS_OFST;
for (index = 1; index < 32; index++) {
netif_err(efx, hw, efx->net_dev, "R%.2d (?): 0x%.8x\n", index,
MCDI_DWORD2(outbuf, ofst));
ofst += sizeof(efx_dword_t);
}
return 0;
}
static int efx_mcdi_wol_filter_set(struct efx_nic *efx, u32 type,
const u8 *mac, int *id_out)
{
u8 inbuf[MC_CMD_WOL_FILTER_SET_IN_LEN];
u8 outbuf[MC_CMD_WOL_FILTER_SET_OUT_LEN];
size_t outlen;
int rc;
MCDI_SET_DWORD(inbuf, WOL_FILTER_SET_IN_WOL_TYPE, type);
MCDI_SET_DWORD(inbuf, WOL_FILTER_SET_IN_FILTER_MODE,
MC_CMD_FILTER_MODE_SIMPLE);
memcpy(MCDI_PTR(inbuf, WOL_FILTER_SET_IN_MAGIC_MAC), mac, ETH_ALEN);
rc = efx_mcdi_rpc(efx, MC_CMD_WOL_FILTER_SET, inbuf, sizeof(inbuf),
outbuf, sizeof(outbuf), &outlen);
if (rc)
goto fail;
if (outlen < MC_CMD_WOL_FILTER_SET_OUT_LEN) {
rc = -EIO;
goto fail;
}
*id_out = (int)MCDI_DWORD(outbuf, WOL_FILTER_SET_OUT_FILTER_ID);
return 0;
fail:
*id_out = -1;
netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
return rc;
}
static void efx_mcdi_phy_get_link_ksettings(struct efx_nic *efx,
struct ethtool_link_ksettings *cmd)
{
struct efx_mcdi_phy_data *phy_cfg = efx->phy_data;
MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN);
int rc;
u32 supported, advertising, lp_advertising;
supported = mcdi_to_ethtool_cap(phy_cfg->media, phy_cfg->supported_cap);
advertising = efx->link_advertising;
cmd->base.speed = efx->link_state.speed;
cmd->base.duplex = efx->link_state.fd;
cmd->base.port = mcdi_to_ethtool_media(phy_cfg->media);
cmd->base.phy_address = phy_cfg->port;
cmd->base.autoneg = !!(efx->link_advertising & ADVERTISED_Autoneg);
cmd->base.mdio_support = (efx->mdio.mode_support &
(MDIO_SUPPORTS_C45 | MDIO_SUPPORTS_C22));
ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
supported);
ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
advertising);
BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0);
rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0,
outbuf, sizeof(outbuf), NULL);
if (rc)
return;
lp_advertising =
mcdi_to_ethtool_cap(phy_cfg->media,
MCDI_DWORD(outbuf, GET_LINK_OUT_LP_CAP));
ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.lp_advertising,
lp_advertising);
}
int efx_mcdi_nvram_types(struct efx_nic *efx, u32 *nvram_types_out)
{
u8 outbuf[MC_CMD_NVRAM_TYPES_OUT_LEN];
size_t outlen;
int rc;
BUILD_BUG_ON(MC_CMD_NVRAM_TYPES_IN_LEN != 0);
rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_TYPES, NULL, 0,
outbuf, sizeof(outbuf), &outlen);
if (rc)
goto fail;
if (outlen < MC_CMD_NVRAM_TYPES_OUT_LEN) {
rc = -EIO;
goto fail;
}
*nvram_types_out = MCDI_DWORD(outbuf, NVRAM_TYPES_OUT_TYPES);
return 0;
fail:
netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n",
__func__, rc);
return rc;
}
int efx_mcdi_wol_filter_get_magic(struct efx_nic *efx, int *id_out)
{
u8 outbuf[MC_CMD_WOL_FILTER_GET_OUT_LEN];
size_t outlen;
int rc;
rc = efx_mcdi_rpc(efx, MC_CMD_WOL_FILTER_GET, NULL, 0,
outbuf, sizeof(outbuf), &outlen);
if (rc)
goto fail;
if (outlen < MC_CMD_WOL_FILTER_GET_OUT_LEN) {
rc = -EIO;
goto fail;
}
*id_out = (int)MCDI_DWORD(outbuf, WOL_FILTER_GET_OUT_FILTER_ID);
return 0;
fail:
*id_out = -1;
netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
return rc;
}
static void efx_mcdi_phy_get_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd)
{
struct efx_mcdi_phy_data *phy_cfg = efx->phy_data;
u8 outbuf[MC_CMD_GET_LINK_OUT_LEN];
int rc;
ecmd->supported =
mcdi_to_ethtool_cap(phy_cfg->media, phy_cfg->supported_cap);
ecmd->advertising = efx->link_advertising;
ecmd->speed = efx->link_state.speed;
ecmd->duplex = efx->link_state.fd;
ecmd->port = mcdi_to_ethtool_media(phy_cfg->media);
ecmd->phy_address = phy_cfg->port;
ecmd->transceiver = XCVR_INTERNAL;
ecmd->autoneg = !!(efx->link_advertising & ADVERTISED_Autoneg);
ecmd->mdio_support = (efx->mdio.mode_support &
(MDIO_SUPPORTS_C45 | MDIO_SUPPORTS_C22));
BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0);
rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0,
outbuf, sizeof(outbuf), NULL);
if (rc) {
netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n",
__func__, rc);
return;
}
ecmd->lp_advertising =
mcdi_to_ethtool_cap(phy_cfg->media,
MCDI_DWORD(outbuf, GET_LINK_OUT_LP_CAP));
}
int efx_mcdi_drv_attach(struct efx_nic *efx, bool driver_operating,
bool *was_attached)
{
u8 inbuf[MC_CMD_DRV_ATTACH_IN_LEN];
u8 outbuf[MC_CMD_DRV_ATTACH_OUT_LEN];
size_t outlen;
int rc;
MCDI_SET_DWORD(inbuf, DRV_ATTACH_IN_NEW_STATE,
driver_operating ? 1 : 0);
MCDI_SET_DWORD(inbuf, DRV_ATTACH_IN_UPDATE, 1);
rc = efx_mcdi_rpc(efx, MC_CMD_DRV_ATTACH, inbuf, sizeof(inbuf),
outbuf, sizeof(outbuf), &outlen);
if (rc)
goto fail;
if (outlen < MC_CMD_DRV_ATTACH_OUT_LEN) {
rc = -EIO;
goto fail;
}
if (was_attached != NULL)
*was_attached = MCDI_DWORD(outbuf, DRV_ATTACH_OUT_OLD_STATE);
return 0;
fail:
netif_err(efx, probe, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
return rc;
}
static int efx_mcdi_bist(struct efx_nic *efx, unsigned int bist_mode,
int *results)
{
unsigned int retry, i, count = 0;
size_t outlen;
u32 status;
MCDI_DECLARE_BUF(inbuf, MC_CMD_START_BIST_IN_LEN);
MCDI_DECLARE_BUF(outbuf, MC_CMD_POLL_BIST_OUT_SFT9001_LEN);
u8 *ptr;
int rc;
BUILD_BUG_ON(MC_CMD_START_BIST_OUT_LEN != 0);
MCDI_SET_DWORD(inbuf, START_BIST_IN_TYPE, bist_mode);
rc = efx_mcdi_rpc(efx, MC_CMD_START_BIST,
inbuf, MC_CMD_START_BIST_IN_LEN, NULL, 0, NULL);
if (rc)
goto out;
/* Wait up to 10s for BIST to finish */
for (retry = 0; retry < 100; ++retry) {
BUILD_BUG_ON(MC_CMD_POLL_BIST_IN_LEN != 0);
rc = efx_mcdi_rpc(efx, MC_CMD_POLL_BIST, NULL, 0,
outbuf, sizeof(outbuf), &outlen);
if (rc)
goto out;
status = MCDI_DWORD(outbuf, POLL_BIST_OUT_RESULT);
if (status != MC_CMD_POLL_BIST_RUNNING)
goto finished;
msleep(100);
}
rc = -ETIMEDOUT;
goto out;
finished:
results[count++] = (status == MC_CMD_POLL_BIST_PASSED) ? 1 : -1;
/* SFT9001 specific cable diagnostics output */
if (efx->phy_type == PHY_TYPE_SFT9001B &&
(bist_mode == MC_CMD_PHY_BIST_CABLE_SHORT ||
bist_mode == MC_CMD_PHY_BIST_CABLE_LONG)) {
ptr = MCDI_PTR(outbuf, POLL_BIST_OUT_SFT9001_CABLE_LENGTH_A);
if (status == MC_CMD_POLL_BIST_PASSED &&
outlen >= MC_CMD_POLL_BIST_OUT_SFT9001_LEN) {
for (i = 0; i < 8; i++) {
results[count + i] =
EFX_DWORD_FIELD(((efx_dword_t *)ptr)[i],
EFX_DWORD_0);
}
}
count += 8;
}
rc = count;
out:
return rc;
}
static int efx_mcdi_phy_get_module_eeprom(struct efx_nic *efx,
struct ethtool_eeprom *ee, u8 *data)
{
MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PHY_MEDIA_INFO_OUT_LENMAX);
MCDI_DECLARE_BUF(inbuf, MC_CMD_GET_PHY_MEDIA_INFO_IN_LEN);
size_t outlen;
int rc;
unsigned int payload_len;
unsigned int space_remaining = ee->len;
unsigned int page;
unsigned int page_off;
unsigned int to_copy;
u8 *user_data = data;
BUILD_BUG_ON(SFP_PAGE_SIZE * SFP_NUM_PAGES != ETH_MODULE_SFF_8079_LEN);
page_off = ee->offset % SFP_PAGE_SIZE;
page = ee->offset / SFP_PAGE_SIZE;
while (space_remaining && (page < SFP_NUM_PAGES)) {
MCDI_SET_DWORD(inbuf, GET_PHY_MEDIA_INFO_IN_PAGE, page);
rc = efx_mcdi_rpc(efx, MC_CMD_GET_PHY_MEDIA_INFO,
inbuf, sizeof(inbuf),
outbuf, sizeof(outbuf),
&outlen);
if (rc)
return rc;
if (outlen < (MC_CMD_GET_PHY_MEDIA_INFO_OUT_DATA_OFST +
SFP_PAGE_SIZE))
return -EIO;
payload_len = MCDI_DWORD(outbuf,
GET_PHY_MEDIA_INFO_OUT_DATALEN);
if (payload_len != SFP_PAGE_SIZE)
return -EIO;
/* Copy as much as we can into data */
payload_len -= page_off;
to_copy = (space_remaining < payload_len) ?
space_remaining : payload_len;
memcpy(user_data,
MCDI_PTR(outbuf, GET_PHY_MEDIA_INFO_OUT_DATA) + page_off,
to_copy);
space_remaining -= to_copy;
user_data += to_copy;
page_off = 0;
page++;
}
return 0;
}
/* Get physical port number (EF10 only; on Siena it is same as PF number) */
int efx_mcdi_port_get_number(struct efx_nic *efx)
{
MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PORT_ASSIGNMENT_OUT_LEN);
int rc;
rc = efx_mcdi_rpc(efx, MC_CMD_GET_PORT_ASSIGNMENT, NULL, 0,
outbuf, sizeof(outbuf), NULL);
if (rc)
return rc;
return MCDI_DWORD(outbuf, GET_PORT_ASSIGNMENT_OUT_PORT);
}
int efx_aoe_update_keys(struct efx_nic *efx,
struct efx_update_license *key_stats)
{
int rc;
MCDI_DECLARE_BUF(inbuf, MC_CMD_FC_IN_LICENSE_LEN);
MCDI_DECLARE_BUF(outbuf, MC_CMD_FC_OUT_LICENSE_LEN);
if (!efx->aoe_data)
return -ENOSYS;
/* 1. Request the FC to update the license keys */
MCDI_SET_DWORD(inbuf, FC_IN_CMD, MC_CMD_FC_OP_LICENSE);
MCDI_SET_DWORD(inbuf, FC_IN_LICENSE_OP,
MC_CMD_FC_IN_LICENSE_UPDATE_LICENSE);
rc = efx_mcdi_rpc(efx, MC_CMD_FC, inbuf, sizeof(inbuf),
NULL, 0, NULL);
if (rc)
return rc;
/* 2. Obtain stats about the keys and return to the called */
MCDI_SET_DWORD(inbuf, FC_IN_LICENSE_OP,
MC_CMD_FC_IN_LICENSE_GET_KEY_STATS);
rc = efx_mcdi_rpc(efx, MC_CMD_FC, inbuf, sizeof(inbuf),
outbuf, sizeof(outbuf), NULL);
if (rc)
return rc;
key_stats->valid_keys = MCDI_DWORD(outbuf,
FC_OUT_LICENSE_VALID_KEYS);
key_stats->invalid_keys = MCDI_DWORD(outbuf,
FC_OUT_LICENSE_INVALID_KEYS);
key_stats->blacklisted_keys = MCDI_DWORD(outbuf,
FC_OUT_LICENSE_BLACKLISTED_KEYS);
return 0;
}
int efx_ef10_sriov_get_vf_config(struct efx_nic *efx, int vf_i,
struct ifla_vf_info *ivf)
{
#ifdef EFX_HAVE_VF_LINK_STATE
MCDI_DECLARE_BUF(inbuf, MC_CMD_LINK_STATE_MODE_IN_LEN);
MCDI_DECLARE_BUF(outbuf, MC_CMD_LINK_STATE_MODE_OUT_LEN);
#endif
struct efx_ef10_nic_data *nic_data = efx->nic_data;
struct ef10_vf *vf;
#ifdef EFX_HAVE_VF_LINK_STATE
size_t outlen;
int rc;
#endif
if (vf_i >= efx->vf_count)
return -EINVAL;
if (nic_data->vf == NULL)
return -EOPNOTSUPP;
vf = nic_data->vf + vf_i;
ivf->vf = vf_i;
#if !defined(EFX_USE_KCOMPAT) || defined(EFX_HAVE_VF_INFO_MIN_TX_RATE)
ivf->min_tx_rate = 0;
ivf->max_tx_rate = 0;
#else
ivf->tx_rate = 0;
#endif
ether_addr_copy(ivf->mac, vf->mac);
ivf->vlan = (vf->vlan == EFX_EF10_NO_VLAN) ? 0 : vf->vlan;
ivf->qos = 0;
#ifdef EFX_HAVE_VF_LINK_STATE
MCDI_POPULATE_DWORD_2(inbuf, LINK_STATE_MODE_IN_FUNCTION,
LINK_STATE_MODE_IN_FUNCTION_PF, nic_data->pf_index,
LINK_STATE_MODE_IN_FUNCTION_VF, vf_i);
MCDI_SET_DWORD(inbuf, LINK_STATE_MODE_IN_NEW_MODE,
MC_CMD_LINK_STATE_MODE_IN_DO_NOT_CHANGE);
rc = efx_mcdi_rpc(efx, MC_CMD_LINK_STATE_MODE, inbuf, sizeof(inbuf),
outbuf, sizeof(outbuf), &outlen);
if (rc)
return rc;
if (outlen < MC_CMD_LINK_STATE_MODE_OUT_LEN)
return -EIO;
ivf->linkstate = MCDI_DWORD(outbuf, LINK_STATE_MODE_OUT_OLD_MODE);
#endif
return 0;
}
static bool efx_mcdi_phy_poll(struct efx_nic *efx)
{
struct efx_link_state old_state = efx->link_state;
MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN);
int rc;
WARN_ON(!mutex_is_locked(&efx->mac_lock));
BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0);
rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0,
outbuf, sizeof(outbuf), NULL);
if (rc)
efx->link_state.up = false;
else
efx_mcdi_phy_decode_link(
efx, &efx->link_state,
MCDI_DWORD(outbuf, GET_LINK_OUT_LINK_SPEED),
MCDI_DWORD(outbuf, GET_LINK_OUT_FLAGS),
MCDI_DWORD(outbuf, GET_LINK_OUT_FCNTL));
return !efx_link_state_equal(&efx->link_state, &old_state);
}
bool efx_mcdi_mac_check_fault(struct efx_nic *efx)
{
MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN);
size_t outlength;
int rc;
BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0);
rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0,
outbuf, sizeof(outbuf), &outlength);
if (rc)
return true;
return MCDI_DWORD(outbuf, GET_LINK_OUT_MAC_FAULT) != 0;
}
static int efx_ef10_sriov_vf_max(struct efx_nic *efx)
{
MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_SRIOV_CFG_OUT_LEN);
size_t outlen;
int rc;
int vf_max;
BUILD_BUG_ON(MC_CMD_GET_SRIOV_CFG_IN_LEN != 0);
rc = efx_mcdi_rpc(efx, MC_CMD_GET_SRIOV_CFG, NULL, 0,
outbuf, sizeof(outbuf), &outlen);
if (rc)
vf_max = 0;
else
vf_max = MCDI_DWORD(outbuf, GET_SRIOV_CFG_OUT_VF_MAX);
return vf_max;
}
bool efx_mcdi_mac_check_fault(struct efx_nic *efx)
{
u8 outbuf[MC_CMD_GET_LINK_OUT_LEN];
size_t outlength;
int rc;
BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0);
rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0,
outbuf, sizeof(outbuf), &outlength);
if (rc) {
netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n",
__func__, rc);
return true;
}
return MCDI_DWORD(outbuf, GET_LINK_OUT_MAC_FAULT) != 0;
}
static int
efx_mcdi_get_phy_cfg(struct efx_nic *efx, struct efx_mcdi_phy_data *cfg)
{
u8 outbuf[MC_CMD_GET_PHY_CFG_OUT_LEN];
size_t outlen;
int rc;
BUILD_BUG_ON(MC_CMD_GET_PHY_CFG_IN_LEN != 0);
BUILD_BUG_ON(MC_CMD_GET_PHY_CFG_OUT_NAME_LEN != sizeof(cfg->name));
rc = efx_mcdi_rpc(efx, MC_CMD_GET_PHY_CFG, NULL, 0,
outbuf, sizeof(outbuf), &outlen);
if (rc)
goto fail;
if (outlen < MC_CMD_GET_PHY_CFG_OUT_LEN) {
rc = -EIO;
goto fail;
}
cfg->flags = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_FLAGS);
cfg->type = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_TYPE);
cfg->supported_cap =
MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_SUPPORTED_CAP);
cfg->channel = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_CHANNEL);
cfg->port = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_PRT);
cfg->stats_mask = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_STATS_MASK);
memcpy(cfg->name, MCDI_PTR(outbuf, GET_PHY_CFG_OUT_NAME),
sizeof(cfg->name));
cfg->media = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_MEDIA_TYPE);
cfg->mmd_mask = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_MMD_MASK);
memcpy(cfg->revision, MCDI_PTR(outbuf, GET_PHY_CFG_OUT_REVISION),
sizeof(cfg->revision));
return 0;
fail:
netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
return rc;
}
static int efx_mcdi_phy_test_alive(struct efx_nic *efx)
{
u8 outbuf[MC_CMD_GET_PHY_STATE_OUT_LEN];
size_t outlen;
int rc;
BUILD_BUG_ON(MC_CMD_GET_PHY_STATE_IN_LEN != 0);
rc = efx_mcdi_rpc(efx, MC_CMD_GET_PHY_STATE, NULL, 0,
outbuf, sizeof(outbuf), &outlen);
if (rc)
return rc;
if (outlen < MC_CMD_GET_PHY_STATE_OUT_LEN)
return -EIO;
if (MCDI_DWORD(outbuf, GET_PHY_STATE_STATE) != MC_CMD_PHY_STATE_OK)
return -EINVAL;
return 0;
}
static int efx_mcdi_get_mac_faults(struct efx_nic *efx, u32 *faults)
{
u8 outbuf[MC_CMD_GET_LINK_OUT_LEN];
size_t outlength;
int rc;
BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0);
rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0,
outbuf, sizeof(outbuf), &outlength);
if (rc)
goto fail;
*faults = MCDI_DWORD(outbuf, GET_LINK_OUT_MAC_FAULT);
return 0;
fail:
netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n",
__func__, rc);
return rc;
}
static int efx_mcdi_nvram_test(struct efx_nic *efx, unsigned int type)
{
u8 inbuf[MC_CMD_NVRAM_TEST_IN_LEN];
u8 outbuf[MC_CMD_NVRAM_TEST_OUT_LEN];
int rc;
MCDI_SET_DWORD(inbuf, NVRAM_TEST_IN_TYPE, type);
rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_TEST, inbuf, sizeof(inbuf),
outbuf, sizeof(outbuf), NULL);
if (rc)
return rc;
switch (MCDI_DWORD(outbuf, NVRAM_TEST_OUT_RESULT)) {
case MC_CMD_NVRAM_TEST_PASS:
case MC_CMD_NVRAM_TEST_NOTSUPP:
return 0;
default:
return -EIO;
}
}
/** efx_mcdi_phy_get_module_eeprom_page() - Get a single page of module eeprom
* @efx: NIC context
* @page: EEPROM page number
* @data: Destination data pointer
* @offset: Offset in page to copy from in to data
* @space: Space available in data
*
* Return:
* >=0 - amount of data copied
* <0 - error
*/
static int efx_mcdi_phy_get_module_eeprom_page(struct efx_nic *efx,
unsigned int page,
u8 *data, ssize_t offset,
ssize_t space)
{
MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PHY_MEDIA_INFO_OUT_LENMAX);
MCDI_DECLARE_BUF(inbuf, MC_CMD_GET_PHY_MEDIA_INFO_IN_LEN);
size_t outlen;
unsigned int payload_len;
unsigned int to_copy;
int rc;
if (offset > SFP_PAGE_SIZE)
return -EINVAL;
to_copy = min(space, SFP_PAGE_SIZE - offset);
MCDI_SET_DWORD(inbuf, GET_PHY_MEDIA_INFO_IN_PAGE, page);
rc = efx_mcdi_rpc_quiet(efx, MC_CMD_GET_PHY_MEDIA_INFO,
inbuf, sizeof(inbuf),
outbuf, sizeof(outbuf),
&outlen);
if (rc)
return rc;
if (outlen < (MC_CMD_GET_PHY_MEDIA_INFO_OUT_DATA_OFST +
SFP_PAGE_SIZE))
return -EIO;
payload_len = MCDI_DWORD(outbuf, GET_PHY_MEDIA_INFO_OUT_DATALEN);
if (payload_len != SFP_PAGE_SIZE)
return -EIO;
memcpy(data, MCDI_PTR(outbuf, GET_PHY_MEDIA_INFO_OUT_DATA) + offset,
to_copy);
return to_copy;
}
static int efx_mcdi_phy_probe(struct efx_nic *efx)
{
struct efx_mcdi_phy_data *phy_data;
u8 outbuf[MC_CMD_GET_LINK_OUT_LEN];
u32 caps;
int rc;
phy_data = kzalloc(sizeof(*phy_data), GFP_KERNEL);
if (phy_data == NULL)
return -ENOMEM;
rc = efx_mcdi_get_phy_cfg(efx, phy_data);
if (rc != 0)
goto fail;
BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0);
rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0,
outbuf, sizeof(outbuf), NULL);
if (rc)
goto fail;
efx->phy_data = phy_data;
efx->phy_type = phy_data->type;
efx->mdio_bus = phy_data->channel;
efx->mdio.prtad = phy_data->port;
efx->mdio.mmds = phy_data->mmd_mask & ~(1 << MC_CMD_MMD_CLAUSE22);
efx->mdio.mode_support = 0;
if (phy_data->mmd_mask & (1 << MC_CMD_MMD_CLAUSE22))
efx->mdio.mode_support |= MDIO_SUPPORTS_C22;
if (phy_data->mmd_mask & ~(1 << MC_CMD_MMD_CLAUSE22))
efx->mdio.mode_support |= MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22;
caps = MCDI_DWORD(outbuf, GET_LINK_OUT_CAP);
if (caps & (1 << MC_CMD_PHY_CAP_AN_LBN))
efx->link_advertising =
mcdi_to_ethtool_cap(phy_data->media, caps);
else
phy_data->forced_cap = caps;
BUILD_BUG_ON(LOOPBACK_NONE != MC_CMD_LOOPBACK_NONE);
BUILD_BUG_ON(LOOPBACK_DATA != MC_CMD_LOOPBACK_DATA);
BUILD_BUG_ON(LOOPBACK_GMAC != MC_CMD_LOOPBACK_GMAC);
BUILD_BUG_ON(LOOPBACK_XGMII != MC_CMD_LOOPBACK_XGMII);
BUILD_BUG_ON(LOOPBACK_XGXS != MC_CMD_LOOPBACK_XGXS);
BUILD_BUG_ON(LOOPBACK_XAUI != MC_CMD_LOOPBACK_XAUI);
BUILD_BUG_ON(LOOPBACK_GMII != MC_CMD_LOOPBACK_GMII);
BUILD_BUG_ON(LOOPBACK_SGMII != MC_CMD_LOOPBACK_SGMII);
BUILD_BUG_ON(LOOPBACK_XGBR != MC_CMD_LOOPBACK_XGBR);
BUILD_BUG_ON(LOOPBACK_XFI != MC_CMD_LOOPBACK_XFI);
BUILD_BUG_ON(LOOPBACK_XAUI_FAR != MC_CMD_LOOPBACK_XAUI_FAR);
BUILD_BUG_ON(LOOPBACK_GMII_FAR != MC_CMD_LOOPBACK_GMII_FAR);
BUILD_BUG_ON(LOOPBACK_SGMII_FAR != MC_CMD_LOOPBACK_SGMII_FAR);
BUILD_BUG_ON(LOOPBACK_XFI_FAR != MC_CMD_LOOPBACK_XFI_FAR);
BUILD_BUG_ON(LOOPBACK_GPHY != MC_CMD_LOOPBACK_GPHY);
BUILD_BUG_ON(LOOPBACK_PHYXS != MC_CMD_LOOPBACK_PHYXS);
BUILD_BUG_ON(LOOPBACK_PCS != MC_CMD_LOOPBACK_PCS);
BUILD_BUG_ON(LOOPBACK_PMAPMD != MC_CMD_LOOPBACK_PMAPMD);
BUILD_BUG_ON(LOOPBACK_XPORT != MC_CMD_LOOPBACK_XPORT);
BUILD_BUG_ON(LOOPBACK_XGMII_WS != MC_CMD_LOOPBACK_XGMII_WS);
BUILD_BUG_ON(LOOPBACK_XAUI_WS != MC_CMD_LOOPBACK_XAUI_WS);
BUILD_BUG_ON(LOOPBACK_XAUI_WS_FAR != MC_CMD_LOOPBACK_XAUI_WS_FAR);
BUILD_BUG_ON(LOOPBACK_XAUI_WS_NEAR != MC_CMD_LOOPBACK_XAUI_WS_NEAR);
BUILD_BUG_ON(LOOPBACK_GMII_WS != MC_CMD_LOOPBACK_GMII_WS);
BUILD_BUG_ON(LOOPBACK_XFI_WS != MC_CMD_LOOPBACK_XFI_WS);
BUILD_BUG_ON(LOOPBACK_XFI_WS_FAR != MC_CMD_LOOPBACK_XFI_WS_FAR);
BUILD_BUG_ON(LOOPBACK_PHYXS_WS != MC_CMD_LOOPBACK_PHYXS_WS);
rc = efx_mcdi_loopback_modes(efx, &efx->loopback_modes);
if (rc != 0)
goto fail;
efx->loopback_modes &= ~(1 << LOOPBACK_NONE);
efx_mcdi_phy_decode_link(
efx, &efx->link_state,
MCDI_DWORD(outbuf, GET_LINK_OUT_LINK_SPEED),
MCDI_DWORD(outbuf, GET_LINK_OUT_FLAGS),
MCDI_DWORD(outbuf, GET_LINK_OUT_FCNTL));
efx->wanted_fc = EFX_FC_RX | EFX_FC_TX;
if (phy_data->supported_cap & (1 << MC_CMD_PHY_CAP_AN_LBN))
efx->wanted_fc |= EFX_FC_AUTO;
efx_link_set_wanted_fc(efx, efx->wanted_fc);
return 0;
fail:
kfree(phy_data);
return rc;
}
static int efx_mcdi_bist(struct efx_nic *efx, unsigned int bist_mode,
int *results)
{
unsigned int retry, i, count = 0;
size_t outlen;
u32 status;
u8 *buf, *ptr;
int rc;
buf = kzalloc(0x100, GFP_KERNEL);
if (buf == NULL)
return -ENOMEM;
BUILD_BUG_ON(MC_CMD_START_BIST_OUT_LEN != 0);
MCDI_SET_DWORD(buf, START_BIST_IN_TYPE, bist_mode);
rc = efx_mcdi_rpc(efx, MC_CMD_START_BIST, buf, MC_CMD_START_BIST_IN_LEN,
NULL, 0, NULL);
if (rc)
goto out;
for (retry = 0; retry < 100; ++retry) {
BUILD_BUG_ON(MC_CMD_POLL_BIST_IN_LEN != 0);
rc = efx_mcdi_rpc(efx, MC_CMD_POLL_BIST, NULL, 0,
buf, 0x100, &outlen);
if (rc)
goto out;
status = MCDI_DWORD(buf, POLL_BIST_OUT_RESULT);
if (status != MC_CMD_POLL_BIST_RUNNING)
goto finished;
msleep(100);
}
rc = -ETIMEDOUT;
goto out;
finished:
results[count++] = (status == MC_CMD_POLL_BIST_PASSED) ? 1 : -1;
if (efx->phy_type == PHY_TYPE_SFT9001B &&
(bist_mode == MC_CMD_PHY_BIST_CABLE_SHORT ||
bist_mode == MC_CMD_PHY_BIST_CABLE_LONG)) {
ptr = MCDI_PTR(buf, POLL_BIST_OUT_SFT9001_CABLE_LENGTH_A);
if (status == MC_CMD_POLL_BIST_PASSED &&
outlen >= MC_CMD_POLL_BIST_OUT_SFT9001_LEN) {
for (i = 0; i < 8; i++) {
results[count + i] =
EFX_DWORD_FIELD(((efx_dword_t *)ptr)[i],
EFX_DWORD_0);
}
}
count += 8;
}
rc = count;
out:
kfree(buf);
return rc;
}
static int efx_mcdi_phy_probe(struct efx_nic *efx)
{
struct efx_mcdi_phy_data *phy_data;
u8 outbuf[MC_CMD_GET_LINK_OUT_LEN];
u32 caps;
int rc;
/* Initialise and populate phy_data */
phy_data = kzalloc(sizeof(*phy_data), GFP_KERNEL);
if (phy_data == NULL)
return -ENOMEM;
rc = efx_mcdi_get_phy_cfg(efx, phy_data);
if (rc != 0)
goto fail;
/* Read initial link advertisement */
BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0);
rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0,
outbuf, sizeof(outbuf), NULL);
if (rc)
goto fail;
/* Fill out nic state */
efx->phy_data = phy_data;
efx->phy_type = phy_data->type;
efx->mdio_bus = phy_data->channel;
efx->mdio.prtad = phy_data->port;
efx->mdio.mmds = phy_data->mmd_mask & ~(1 << MC_CMD_MMD_CLAUSE22);
efx->mdio.mode_support = 0;
if (phy_data->mmd_mask & (1 << MC_CMD_MMD_CLAUSE22))
efx->mdio.mode_support |= MDIO_SUPPORTS_C22;
if (phy_data->mmd_mask & ~(1 << MC_CMD_MMD_CLAUSE22))
efx->mdio.mode_support |= MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22;
caps = MCDI_DWORD(outbuf, GET_LINK_OUT_CAP);
if (caps & (1 << MC_CMD_PHY_CAP_AN_LBN))
efx->link_advertising =
mcdi_to_ethtool_cap(phy_data->media, caps);
else
phy_data->forced_cap = caps;
/* Assert that we can map efx -> mcdi loopback modes */
BUILD_BUG_ON(LOOPBACK_NONE != MC_CMD_LOOPBACK_NONE);
BUILD_BUG_ON(LOOPBACK_DATA != MC_CMD_LOOPBACK_DATA);
BUILD_BUG_ON(LOOPBACK_GMAC != MC_CMD_LOOPBACK_GMAC);
BUILD_BUG_ON(LOOPBACK_XGMII != MC_CMD_LOOPBACK_XGMII);
BUILD_BUG_ON(LOOPBACK_XGXS != MC_CMD_LOOPBACK_XGXS);
BUILD_BUG_ON(LOOPBACK_XAUI != MC_CMD_LOOPBACK_XAUI);
BUILD_BUG_ON(LOOPBACK_GMII != MC_CMD_LOOPBACK_GMII);
BUILD_BUG_ON(LOOPBACK_SGMII != MC_CMD_LOOPBACK_SGMII);
BUILD_BUG_ON(LOOPBACK_XGBR != MC_CMD_LOOPBACK_XGBR);
BUILD_BUG_ON(LOOPBACK_XFI != MC_CMD_LOOPBACK_XFI);
BUILD_BUG_ON(LOOPBACK_XAUI_FAR != MC_CMD_LOOPBACK_XAUI_FAR);
BUILD_BUG_ON(LOOPBACK_GMII_FAR != MC_CMD_LOOPBACK_GMII_FAR);
BUILD_BUG_ON(LOOPBACK_SGMII_FAR != MC_CMD_LOOPBACK_SGMII_FAR);
BUILD_BUG_ON(LOOPBACK_XFI_FAR != MC_CMD_LOOPBACK_XFI_FAR);
BUILD_BUG_ON(LOOPBACK_GPHY != MC_CMD_LOOPBACK_GPHY);
BUILD_BUG_ON(LOOPBACK_PHYXS != MC_CMD_LOOPBACK_PHYXS);
BUILD_BUG_ON(LOOPBACK_PCS != MC_CMD_LOOPBACK_PCS);
BUILD_BUG_ON(LOOPBACK_PMAPMD != MC_CMD_LOOPBACK_PMAPMD);
BUILD_BUG_ON(LOOPBACK_XPORT != MC_CMD_LOOPBACK_XPORT);
BUILD_BUG_ON(LOOPBACK_XGMII_WS != MC_CMD_LOOPBACK_XGMII_WS);
BUILD_BUG_ON(LOOPBACK_XAUI_WS != MC_CMD_LOOPBACK_XAUI_WS);
BUILD_BUG_ON(LOOPBACK_XAUI_WS_FAR != MC_CMD_LOOPBACK_XAUI_WS_FAR);
BUILD_BUG_ON(LOOPBACK_XAUI_WS_NEAR != MC_CMD_LOOPBACK_XAUI_WS_NEAR);
BUILD_BUG_ON(LOOPBACK_GMII_WS != MC_CMD_LOOPBACK_GMII_WS);
BUILD_BUG_ON(LOOPBACK_XFI_WS != MC_CMD_LOOPBACK_XFI_WS);
BUILD_BUG_ON(LOOPBACK_XFI_WS_FAR != MC_CMD_LOOPBACK_XFI_WS_FAR);
BUILD_BUG_ON(LOOPBACK_PHYXS_WS != MC_CMD_LOOPBACK_PHYXS_WS);
rc = efx_mcdi_loopback_modes(efx, &efx->loopback_modes);
if (rc != 0)
goto fail;
/* The MC indicates that LOOPBACK_NONE is a valid loopback mode,
* but by convention we don't */
efx->loopback_modes &= ~(1 << LOOPBACK_NONE);
/* Set the initial link mode */
efx_mcdi_phy_decode_link(
efx, &efx->link_state,
MCDI_DWORD(outbuf, GET_LINK_OUT_LINK_SPEED),
MCDI_DWORD(outbuf, GET_LINK_OUT_FLAGS),
MCDI_DWORD(outbuf, GET_LINK_OUT_FCNTL));
/* Default to Autonegotiated flow control if the PHY supports it */
efx->wanted_fc = EFX_FC_RX | EFX_FC_TX;
if (phy_data->supported_cap & (1 << MC_CMD_PHY_CAP_AN_LBN))
efx->wanted_fc |= EFX_FC_AUTO;
efx_link_set_wanted_fc(efx, efx->wanted_fc);
return 0;
fail:
kfree(phy_data);
return rc;
}
