bnxt_en: Add 57500 new chip ID and basic structures.

57500 series is a new chip class (P5) that requires some driver changes
in the next several patches.  This adds basic chip ID, doorbells, and
the notification queue (NQ) structures.  Each MSIX is associated with an
NQ instead of a CP ring in legacy chips.  Each NQ has up to 2 associated
CP rings for RX and TX.  The same bnxt_cp_ring_info struct will be used
for the NQ.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 36 insertions, 12 deletions

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index b0e2416ff597..88ea8c754332 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -3322,6 +3322,13 @@ static int bnxt_alloc_mem(struct bnxt *bp, bool irq_re_init)
 			bp->bnapi[i] = bnapi;
 			bp->bnapi[i]->index = i;
 			bp->bnapi[i]->bp = bp;
+			if (bp->flags & BNXT_FLAG_CHIP_P5) {
+				struct bnxt_cp_ring_info *cpr =
+					&bp->bnapi[i]->cp_ring;
+
+				cpr->cp_ring_struct.ring_mem.flags =
+					BNXT_RMEM_RING_PTE_FLAG;
+			}
 		}
 
 		bp->rx_ring = kcalloc(bp->rx_nr_rings,
@@ -3331,7 +3338,15 @@ static int bnxt_alloc_mem(struct bnxt *bp, bool irq_re_init)
 			return -ENOMEM;
 
 		for (i = 0; i < bp->rx_nr_rings; i++) {
-			bp->rx_ring[i].bnapi = bp->bnapi[i];
+			struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
+
+			if (bp->flags & BNXT_FLAG_CHIP_P5) {
+				rxr->rx_ring_struct.ring_mem.flags =
+					BNXT_RMEM_RING_PTE_FLAG;
+				rxr->rx_agg_ring_struct.ring_mem.flags =
+					BNXT_RMEM_RING_PTE_FLAG;
+			}
+			rxr->bnapi = bp->bnapi[i];
 			bp->bnapi[i]->rx_ring = &bp->rx_ring[i];
 		}
 
@@ -3353,12 +3368,16 @@ static int bnxt_alloc_mem(struct bnxt *bp, bool irq_re_init)
 			j = bp->rx_nr_rings;
 
 		for (i = 0; i < bp->tx_nr_rings; i++, j++) {
-			bp->tx_ring[i].bnapi = bp->bnapi[j];
-			bp->bnapi[j]->tx_ring = &bp->tx_ring[i];
+			struct bnxt_tx_ring_info *txr = &bp->tx_ring[i];
+
+			if (bp->flags & BNXT_FLAG_CHIP_P5)
+				txr->tx_ring_struct.ring_mem.flags =
+					BNXT_RMEM_RING_PTE_FLAG;
+			txr->bnapi = bp->bnapi[j];
+			bp->bnapi[j]->tx_ring = txr;
 			bp->tx_ring_map[i] = bp->tx_nr_rings_xdp + i;
 			if (i >= bp->tx_nr_rings_xdp) {
-				bp->tx_ring[i].txq_index = i -
-					bp->tx_nr_rings_xdp;
+				txr->txq_index = i - bp->tx_nr_rings_xdp;
 				bp->bnapi[j]->tx_int = bnxt_tx_int;
 			} else {
 				bp->bnapi[j]->flags |= BNXT_NAPI_FLAG_XDP;
@@ -9326,6 +9345,9 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 			goto init_err_pci_clean;
 	}
 
+	if (BNXT_CHIP_P5(bp))
+		bp->flags |= BNXT_FLAG_CHIP_P5;
+
 	rc = bnxt_hwrm_func_reset(bp);
 	if (rc)
 		goto init_err_pci_clean;
@@ -9340,7 +9362,7 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 			   NETIF_F_GSO_PARTIAL | NETIF_F_RXHASH |
 			   NETIF_F_RXCSUM | NETIF_F_GRO;
 
-	if (!BNXT_CHIP_TYPE_NITRO_A0(bp))
+	if (BNXT_SUPPORTS_TPA(bp))
 		dev->hw_features |= NETIF_F_LRO;
 
 	dev->hw_enc_features =
@@ -9354,7 +9376,7 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	dev->vlan_features = dev->hw_features | NETIF_F_HIGHDMA;
 	dev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_TX |
 			    NETIF_F_HW_VLAN_STAG_RX | NETIF_F_HW_VLAN_STAG_TX;
-	if (!BNXT_CHIP_TYPE_NITRO_A0(bp))
+	if (BNXT_SUPPORTS_TPA(bp))
 		dev->hw_features |= NETIF_F_GRO_HW;
 	dev->features |= dev->hw_features | NETIF_F_HIGHDMA;
 	if (dev->features & NETIF_F_GRO_HW)
@@ -9365,10 +9387,12 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	init_waitqueue_head(&bp->sriov_cfg_wait);
 	mutex_init(&bp->sriov_lock);
 #endif
-	bp->gro_func = bnxt_gro_func_5730x;
-	if (BNXT_CHIP_P4_PLUS(bp))
-		bp->gro_func = bnxt_gro_func_5731x;
-	else
+	if (BNXT_SUPPORTS_TPA(bp)) {
+		bp->gro_func = bnxt_gro_func_5730x;
+		if (BNXT_CHIP_P4(bp))
+			bp->gro_func = bnxt_gro_func_5731x;
+	}
+	if (!BNXT_CHIP_P4_PLUS(bp))
 		bp->flags |= BNXT_FLAG_DOUBLE_DB;
 
 	rc = bnxt_hwrm_func_drv_rgtr(bp);
@@ -9432,7 +9456,7 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 			   VNIC_RSS_CFG_REQ_HASH_TYPE_TCP_IPV4 |
 			   VNIC_RSS_CFG_REQ_HASH_TYPE_IPV6 |
 			   VNIC_RSS_CFG_REQ_HASH_TYPE_TCP_IPV6;
-	if (BNXT_CHIP_P4_PLUS(bp) && bp->hwrm_spec_code >= 0x10501) {
+	if (BNXT_CHIP_P4(bp) && bp->hwrm_spec_code >= 0x10501) {
 		bp->flags |= BNXT_FLAG_UDP_RSS_CAP;
 		bp->rss_hash_cfg |= VNIC_RSS_CFG_REQ_HASH_TYPE_UDP_IPV4 |
 				    VNIC_RSS_CFG_REQ_HASH_TYPE_UDP_IPV6;