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sfc_ef100: read datapath caps, implement check_caps 

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Edward Cree 2020-07-27 12:58:26 +01:00 committed by David S. Miller
parent 5e4ef67346
commit f65731207d
2 changed files with 58 additions and 2 deletions
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58
drivers/net/ethernet/sfc/ef100_nic.c
View File

@ -124,6 +124,49 @@ static void ef100_mcdi_reboot_detected(struct efx_nic *efx)
{
}
/* MCDI calls
*/
static int efx_ef100_init_datapath_caps(struct efx_nic *efx)
{
MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_CAPABILITIES_V4_OUT_LEN);
struct ef100_nic_data *nic_data = efx->nic_data;
u8 vi_window_mode;
size_t outlen;
int rc;
BUILD_BUG_ON(MC_CMD_GET_CAPABILITIES_IN_LEN != 0);
rc = efx_mcdi_rpc(efx, MC_CMD_GET_CAPABILITIES, NULL, 0,
outbuf, sizeof(outbuf), &outlen);
if (rc)
return rc;
if (outlen < MC_CMD_GET_CAPABILITIES_V4_OUT_LEN) {
netif_err(efx, drv, efx->net_dev,
"unable to read datapath firmware capabilities\n");
return -EIO;
}
nic_data->datapath_caps = MCDI_DWORD(outbuf,
GET_CAPABILITIES_OUT_FLAGS1);
nic_data->datapath_caps2 = MCDI_DWORD(outbuf,
GET_CAPABILITIES_V2_OUT_FLAGS2);
vi_window_mode = MCDI_BYTE(outbuf,
GET_CAPABILITIES_V3_OUT_VI_WINDOW_MODE);
rc = efx_mcdi_window_mode_to_stride(efx, vi_window_mode);
if (rc)
return rc;
if (efx_ef100_has_cap(nic_data->datapath_caps2, TX_TSO_V3))
efx->net_dev->features |= NETIF_F_TSO | NETIF_F_TSO6;
efx->num_mac_stats = MCDI_WORD(outbuf,
GET_CAPABILITIES_V4_OUT_MAC_STATS_NUM_STATS);
netif_dbg(efx, probe, efx->net_dev,
"firmware reports num_mac_stats = %u\n",
efx->num_mac_stats);
return 0;
}
/* Event handling
*/
static int ef100_ev_probe(struct efx_channel *channel)
@ -296,8 +339,16 @@ static int ef100_reset(struct efx_nic *efx, enum reset_type reset_type)
static unsigned int ef100_check_caps(const struct efx_nic *efx,
u8 flag, u32 offset)
{
/* stub */
return 0;
const struct ef100_nic_data *nic_data = efx->nic_data;
switch (offset) {
case MC_CMD_GET_CAPABILITIES_V8_OUT_FLAGS1_OFST:
return nic_data->datapath_caps & BIT_ULL(flag);
case MC_CMD_GET_CAPABILITIES_V8_OUT_FLAGS2_OFST:
return nic_data->datapath_caps2 & BIT_ULL(flag);
default:
return 0;
}
}
/* NIC level access functions
@ -408,6 +459,9 @@ static int ef100_probe_main(struct efx_nic *efx)
}
if (rc)
goto fail;
rc = efx_ef100_init_datapath_caps(efx);
if (rc < 0)
goto fail;
efx->max_vis = EF100_MAX_VIS;

2
drivers/net/ethernet/sfc/ef100_nic.h
View File

@ -20,6 +20,8 @@ void ef100_remove(struct efx_nic *efx);
struct ef100_nic_data {
struct efx_nic *efx;
struct efx_buffer mcdi_buf;
u32 datapath_caps;
u32 datapath_caps2;
u16 warm_boot_count;
DECLARE_BITMAP(evq_phases, EFX_MAX_CHANNELS);
};