Merge remote-tracking branch 'input-current/for-linus'

[karo-tx-linux.git] / drivers / net / ethernet / cavium / thunder / nic_main.c

diff --git a/drivers/net/ethernet/cavium/thunder/nic_main.c b/drivers/net/ethernet/cavium/thunder/nic_main.c
index b3a5947a2cc03e1675e5895fef39e35b10ea04d0..c561fdcb79a730aeeb890c5a985b05cb873faa45 100644 (file)
--- 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);