1 files changed, 29 insertions, 13 deletions

diff --git a/drivers/net/ethernet/cavium/thunder/nic_main.c b/drivers/net/ethernet/cavium/thunder/nic_main.c
index b3a5947a2cc0..c561fdcb79a7 100644
--- a/drivers/net/ethernet/cavium/thunder/nic_main.c
+++ b/drivers/net/ethernet/cavium/thunder/nic_main.c
@@ -22,7 +22,6 @@
 
 struct nicpf {
 	struct pci_dev		*pdev;
-	u8			rev_id;
 	u8			node;
 	unsigned int		flags;
 	u8			num_vf_en;      /* No of VF enabled */
@@ -44,6 +43,7 @@ struct nicpf {
 	u8			duplex[MAX_LMAC];
 	u32			speed[MAX_LMAC];
 	u16			cpi_base[MAX_NUM_VFS_SUPPORTED];
+	u16			rssi_base[MAX_NUM_VFS_SUPPORTED];
 	u16			rss_ind_tbl_size;
 	bool			mbx_lock[MAX_NUM_VFS_SUPPORTED];
 
@@ -54,6 +54,11 @@ struct nicpf {
 	bool			irq_allocated[NIC_PF_MSIX_VECTORS];
 };
 
+static inline bool pass1_silicon(struct nicpf *nic)
+{
+	return nic->pdev->revision < 8;
+}
+
 /* Supported devices */
 static const struct pci_device_id nic_id_table[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, PCI_DEVICE_ID_THUNDER_NIC_PF) },
@@ -117,7 +122,7 @@ static void nic_send_msg_to_vf(struct nicpf *nic, int vf, union nic_mbx *mbx)
 	 * when PF writes to MBOX(1), in next revisions when
 	 * PF writes to MBOX(0)
 	 */
-	if (nic->rev_id == 0) {
+	if (pass1_silicon(nic)) {
 		/* see the comment for nic_reg_write()/nic_reg_read()
 		 * functions above
 		 */
@@ -305,9 +310,6 @@ static void nic_init_hw(struct nicpf *nic)
 {
 	int i;
 
-	/* Reset NIC, in case the driver is repeatedly inserted and removed */
-	nic_reg_write(nic, NIC_PF_SOFT_RESET, 1);
-
 	/* Enable NIC HW block */
 	nic_reg_write(nic, NIC_PF_CFG, 0x3);
 
@@ -395,8 +397,18 @@ static void nic_config_cpi(struct nicpf *nic, struct cpi_cfg_msg *cfg)
 			padd = cpi % 8; /* 3 bits CS out of 6bits DSCP */
 
 		/* Leave RSS_SIZE as '0' to disable RSS */
-		nic_reg_write(nic, NIC_PF_CPI_0_2047_CFG | (cpi << 3),
-			      (vnic << 24) | (padd << 16) | (rssi_base + rssi));
+		if (pass1_silicon(nic)) {
+			nic_reg_write(nic, NIC_PF_CPI_0_2047_CFG | (cpi << 3),
+				      (vnic << 24) | (padd << 16) |
+				      (rssi_base + rssi));
+		} else {
+			/* Set MPI_ALG to '0' to disable MCAM parsing */
+			nic_reg_write(nic, NIC_PF_CPI_0_2047_CFG | (cpi << 3),
+				      (padd << 16));
+			/* MPI index is same as CPI if MPI_ALG is not enabled */
+			nic_reg_write(nic, NIC_PF_MPI_0_2047_CFG | (cpi << 3),
+				      (vnic << 24) | (rssi_base + rssi));
+		}
 
 		if ((rssi + 1) >= cfg->rq_cnt)
 			continue;
@@ -409,6 +421,7 @@ static void nic_config_cpi(struct nicpf *nic, struct cpi_cfg_msg *cfg)
 			rssi = ((cpi - cpi_base) & 0x38) >> 3;
 	}
 	nic->cpi_base[cfg->vf_id] = cpi_base;
+	nic->rssi_base[cfg->vf_id] = rssi_base;
 }
 
 /* Responsds to VF with its RSS indirection table size */
@@ -434,10 +447,9 @@ static void nic_config_rss(struct nicpf *nic, struct rss_cfg_msg *cfg)
 {
 	u8  qset, idx = 0;
 	u64 cpi_cfg, cpi_base, rssi_base, rssi;
+	u64 idx_addr;
 
-	cpi_base = nic->cpi_base[cfg->vf_id];
-	cpi_cfg = nic_reg_read(nic, NIC_PF_CPI_0_2047_CFG | (cpi_base << 3));
-	rssi_base = (cpi_cfg & 0x0FFF) + cfg->tbl_offset;
+	rssi_base = nic->rssi_base[cfg->vf_id] + cfg->tbl_offset;
 
 	rssi = rssi_base;
 	qset = cfg->vf_id;
@@ -454,9 +466,15 @@ static void nic_config_rss(struct nicpf *nic, struct rss_cfg_msg *cfg)
 		idx++;
 	}
 
+	cpi_base = nic->cpi_base[cfg->vf_id];
+	if (pass1_silicon(nic))
+		idx_addr = NIC_PF_CPI_0_2047_CFG;
+	else
+		idx_addr = NIC_PF_MPI_0_2047_CFG;
+	cpi_cfg = nic_reg_read(nic, idx_addr | (cpi_base << 3));
 	cpi_cfg &= ~(0xFULL << 20);
 	cpi_cfg |= (cfg->hash_bits << 20);
-	nic_reg_write(nic, NIC_PF_CPI_0_2047_CFG | (cpi_base << 3), cpi_cfg);
+	nic_reg_write(nic, idx_addr | (cpi_base << 3), cpi_cfg);
 }
 
 /* 4 level transmit side scheduler configutation
@@ -1001,8 +1019,6 @@ static int nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		goto err_release_regions;
 	}
 
-	pci_read_config_byte(pdev, PCI_REVISION_ID, &nic->rev_id);
-
 	nic->node = nic_get_node_id(pdev);
 
 	nic_set_lmac_vf_mapping(nic);