sfc_ef100: read datapath caps, implement check_caps (f6573120) · Commits · 戴 / test

drivers/net/ethernet/sfc/ef100_nic.c

+56 −2

Original line number	Diff line number	Diff line
		@@ -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)
		@@ -296,9 +339,17 @@ 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 */
		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;

drivers/net/ethernet/sfc/ef100_nic.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -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);
		};

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