X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fsfc%2Fbase%2Fefx_mcdi.c;h=d4ebcf265027a02797287ffa39eb6c2618704e5f;hb=9a5d5f180586d8887dc68c44b02cd8afb4b5173d;hp=8156acc4241dc0496180309193d647fe6fa87773;hpb=8b743724c0e8fda18a60eeb1b709f03f872a75b5;p=dpdk.git

diff --git a/drivers/net/sfc/base/efx_mcdi.c b/drivers/net/sfc/base/efx_mcdi.c
index 8156acc424..d4ebcf2650 100644
--- a/drivers/net/sfc/base/efx_mcdi.c
+++ b/drivers/net/sfc/base/efx_mcdi.c
@@ -1264,13 +1264,21 @@ efx_mcdi_drv_attach(
 	req.emr_out_length = MC_CMD_DRV_ATTACH_EXT_OUT_LEN;
 
 	/*
-	 * Use DONT_CARE for the datapath firmware type to ensure that the
-	 * driver can attach to an unprivileged function. The datapath firmware
-	 * type to use is controlled by the 'sfboot' utility.
+	 * Typically, client drivers use DONT_CARE for the datapath firmware
+	 * type to ensure that the driver can attach to an unprivileged
+	 * function. The datapath firmware type to use is controlled by the
+	 * 'sfboot' utility.
+	 * If a client driver wishes to attach with a specific datapath firmware
+	 * type, that can be passed in second argument of efx_nic_probe API. One
+	 * such example is the ESXi native driver that attempts attaching with
+	 * FULL_FEATURED datapath firmware type first and fall backs to
+	 * DONT_CARE datapath firmware type if MC_CMD_DRV_ATTACH fails.
 	 */
-	MCDI_IN_SET_DWORD(req, DRV_ATTACH_IN_NEW_STATE, attach ? 1 : 0);
+	MCDI_IN_POPULATE_DWORD_2(req, DRV_ATTACH_IN_NEW_STATE,
+	    DRV_ATTACH_IN_ATTACH, attach ? 1 : 0,
+	    DRV_ATTACH_IN_SUBVARIANT_AWARE, EFSYS_OPT_FW_SUBVARIANT_AWARE);
 	MCDI_IN_SET_DWORD(req, DRV_ATTACH_IN_UPDATE, 1);
-	MCDI_IN_SET_DWORD(req, DRV_ATTACH_IN_FIRMWARE_ID, MC_CMD_FW_DONT_CARE);
+	MCDI_IN_SET_DWORD(req, DRV_ATTACH_IN_FIRMWARE_ID, enp->efv);
 
 	efx_mcdi_execute(enp, &req);
 
@@ -1436,6 +1444,7 @@ efx_mcdi_get_phy_cfg(
 	const char *namep;
 	size_t namelen;
 #endif
+	uint32_t phy_media_type;
 	efx_rc_t rc;
 
 	(void) memset(payload, 0, sizeof (payload));
@@ -1486,8 +1495,8 @@ efx_mcdi_get_phy_cfg(
 	EFX_STATIC_ASSERT(MC_CMD_MEDIA_SFP_PLUS == EFX_PHY_MEDIA_SFP_PLUS);
 	EFX_STATIC_ASSERT(MC_CMD_MEDIA_BASE_T == EFX_PHY_MEDIA_BASE_T);
 	EFX_STATIC_ASSERT(MC_CMD_MEDIA_QSFP_PLUS == EFX_PHY_MEDIA_QSFP_PLUS);
-	epp->ep_fixed_port_type =
-		(efx_phy_media_type_t) MCDI_OUT_DWORD(req, GET_PHY_CFG_OUT_MEDIA_TYPE);
+	phy_media_type = MCDI_OUT_DWORD(req, GET_PHY_CFG_OUT_MEDIA_TYPE);
+	epp->ep_fixed_port_type = (efx_phy_media_type_t)phy_media_type;
 	if (epp->ep_fixed_port_type >= EFX_PHY_MEDIA_NTYPES)
 		epp->ep_fixed_port_type = EFX_PHY_MEDIA_INVALID;
 
@@ -1790,7 +1799,7 @@ efx_mcdi_mac_stats(
 {
 	efx_mcdi_req_t req;
 	uint8_t payload[MAX(MC_CMD_MAC_STATS_IN_LEN,
-			    MC_CMD_MAC_STATS_OUT_DMA_LEN)];
+			    MC_CMD_MAC_STATS_V2_OUT_DMA_LEN)];
 	int clear = (action == EFX_STATS_CLEAR);
 	int upload = (action == EFX_STATS_UPLOAD);
 	int enable = (action == EFX_STATS_ENABLE_NOEVENTS);
@@ -1803,7 +1812,7 @@ efx_mcdi_mac_stats(
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_MAC_STATS_IN_LEN;
 	req.emr_out_buf = payload;
-	req.emr_out_length = MC_CMD_MAC_STATS_OUT_DMA_LEN;
+	req.emr_out_length = MC_CMD_MAC_STATS_V2_OUT_DMA_LEN;
 
 	MCDI_IN_POPULATE_DWORD_6(req, MAC_STATS_IN_CMD,
 	    MAC_STATS_IN_DMA, upload,
@@ -1813,19 +1822,35 @@ efx_mcdi_mac_stats(
 	    MAC_STATS_IN_PERIODIC_NOEVENT, !events,
 	    MAC_STATS_IN_PERIOD_MS, (enable | events) ? period_ms : 0);
 
-	if (esmp != NULL) {
-		int bytes = MC_CMD_MAC_NSTATS * sizeof (uint64_t);
+	if (enable || events || upload) {
+		const efx_nic_cfg_t *encp = &enp->en_nic_cfg;
+		uint32_t bytes;
 
-		EFX_STATIC_ASSERT(MC_CMD_MAC_NSTATS * sizeof (uint64_t) <=
-		    EFX_MAC_STATS_SIZE);
+		/* Periodic stats or stats upload require a DMA buffer */
+		if (esmp == NULL) {
+			rc = EINVAL;
+			goto fail1;
+		}
+
+		if (encp->enc_mac_stats_nstats < MC_CMD_MAC_NSTATS) {
+			/* MAC stats count too small for legacy MAC stats */
+			rc = ENOSPC;
+			goto fail2;
+		}
+
+		bytes = encp->enc_mac_stats_nstats * sizeof (efx_qword_t);
+
+		if (EFSYS_MEM_SIZE(esmp) < bytes) {
+			/* DMA buffer too small */
+			rc = ENOSPC;
+			goto fail3;
+		}
 
 		MCDI_IN_SET_DWORD(req, MAC_STATS_IN_DMA_ADDR_LO,
 			    EFSYS_MEM_ADDR(esmp) & 0xffffffff);
 		MCDI_IN_SET_DWORD(req, MAC_STATS_IN_DMA_ADDR_HI,
 			    EFSYS_MEM_ADDR(esmp) >> 32);
 		MCDI_IN_SET_DWORD(req, MAC_STATS_IN_DMA_LEN, bytes);
-	} else {
-		EFSYS_ASSERT(!upload && !enable && !events);
 	}
 
 	/*
@@ -1843,12 +1868,18 @@ efx_mcdi_mac_stats(
 		if ((req.emr_rc != ENOENT) ||
 		    (enp->en_rx_qcount + enp->en_tx_qcount != 0)) {
 			rc = req.emr_rc;
-			goto fail1;
+			goto fail4;
 		}
 	}
 
 	return (0);
 
+fail4:
+	EFSYS_PROBE(fail4);
+fail3:
+	EFSYS_PROBE(fail3);
+fail2:
+	EFSYS_PROBE(fail2);
 fail1:
 	EFSYS_PROBE1(fail1, efx_rc_t, rc);