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authorEdward Cree2020-07-27 12:58:26 +0100
committerDavid S. Miller2020-07-27 12:26:55 -0700
commitf65731207d99c0858e38563a17b480adbd45e4a2 (patch)
tree534578a855c062f0ce3e6512d399729cf0918c88 /drivers
parent5e4ef67346ee8f64b3cac4cbc1c866fd8f18dcd7 (diff)
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/sfc/ef100_nic.c58
-rw-r--r--drivers/net/ethernet/sfc/ef100_nic.h2
2 files changed, 58 insertions, 2 deletions
diff --git a/drivers/net/ethernet/sfc/ef100_nic.c b/drivers/net/ethernet/sfc/ef100_nic.c
index c6703527bbe9..3fb81d6e8df3 100644
--- a/drivers/net/ethernet/sfc/ef100_nic.c
+++ b/drivers/net/ethernet/sfc/ef100_nic.c
@@ -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;
diff --git a/drivers/net/ethernet/sfc/ef100_nic.h b/drivers/net/ethernet/sfc/ef100_nic.h
index 5d376e2d98a7..392611cc33b5 100644
--- a/drivers/net/ethernet/sfc/ef100_nic.h
+++ b/drivers/net/ethernet/sfc/ef100_nic.h
@@ -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);
};