netxen: enable rss for NX2031
Enable multiple rx rings for older NX2031 chip, firmware 3.4.336
or newer supports this feature.
Signed-off-by: Amit Kumar Salecha <amit@netxen.com>
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/netxen/netxen_nic_ctx.c b/drivers/net/netxen/netxen_nic_ctx.c
index 32f4839..fd82adf 100644
--- a/drivers/net/netxen/netxen_nic_ctx.c
+++ b/drivers/net/netxen/netxen_nic_ctx.c
@@ -441,7 +441,19 @@
NETXEN_NIC_REG(0x120)
},
/* crb_sts_consumer: */
- NETXEN_NIC_REG(0x138),
+ {
+ NETXEN_NIC_REG(0x138),
+ NETXEN_NIC_REG_2(0x000),
+ NETXEN_NIC_REG_2(0x004),
+ NETXEN_NIC_REG_2(0x008),
+ },
+ /* sw_int_mask */
+ {
+ CRB_SW_INT_MASK_0,
+ NETXEN_NIC_REG_2(0x044),
+ NETXEN_NIC_REG_2(0x048),
+ NETXEN_NIC_REG_2(0x04c),
+ },
},
/* Instance 1 */
{
@@ -454,7 +466,19 @@
NETXEN_NIC_REG(0x164)
},
/* crb_sts_consumer: */
- NETXEN_NIC_REG(0x17c),
+ {
+ NETXEN_NIC_REG(0x17c),
+ NETXEN_NIC_REG_2(0x020),
+ NETXEN_NIC_REG_2(0x024),
+ NETXEN_NIC_REG_2(0x028),
+ },
+ /* sw_int_mask */
+ {
+ CRB_SW_INT_MASK_1,
+ NETXEN_NIC_REG_2(0x064),
+ NETXEN_NIC_REG_2(0x068),
+ NETXEN_NIC_REG_2(0x06c),
+ },
},
/* Instance 2 */
{
@@ -467,7 +491,19 @@
NETXEN_NIC_REG(0x208)
},
/* crb_sts_consumer: */
- NETXEN_NIC_REG(0x220),
+ {
+ NETXEN_NIC_REG(0x220),
+ NETXEN_NIC_REG_2(0x03c),
+ NETXEN_NIC_REG_2(0x03c),
+ NETXEN_NIC_REG_2(0x03c),
+ },
+ /* sw_int_mask */
+ {
+ CRB_SW_INT_MASK_2,
+ NETXEN_NIC_REG_2(0x03c),
+ NETXEN_NIC_REG_2(0x03c),
+ NETXEN_NIC_REG_2(0x03c),
+ },
},
/* Instance 3 */
{
@@ -480,7 +516,19 @@
NETXEN_NIC_REG(0x24c)
},
/* crb_sts_consumer: */
- NETXEN_NIC_REG(0x264),
+ {
+ NETXEN_NIC_REG(0x264),
+ NETXEN_NIC_REG_2(0x03c),
+ NETXEN_NIC_REG_2(0x03c),
+ NETXEN_NIC_REG_2(0x03c),
+ },
+ /* sw_int_mask */
+ {
+ CRB_SW_INT_MASK_3,
+ NETXEN_NIC_REG_2(0x03c),
+ NETXEN_NIC_REG_2(0x03c),
+ NETXEN_NIC_REG_2(0x03c),
+ },
},
};
@@ -492,40 +540,50 @@
struct nx_host_sds_ring *sds_ring;
struct nx_host_tx_ring *tx_ring;
int ring;
- int func_id = adapter->portnum;
+ int port = adapter->portnum;
+ struct netxen_ring_ctx *hwctx = adapter->ctx_desc;
+ u32 signature;
tx_ring = &adapter->tx_ring;
- adapter->ctx_desc->cmd_ring_addr = cpu_to_le64(tx_ring->phys_addr);
- adapter->ctx_desc->cmd_ring_size = cpu_to_le32(tx_ring->num_desc);
+ hwctx->cmd_ring_addr = cpu_to_le64(tx_ring->phys_addr);
+ hwctx->cmd_ring_size = cpu_to_le32(tx_ring->num_desc);
recv_ctx = &adapter->recv_ctx;
for (ring = 0; ring < adapter->max_rds_rings; ring++) {
rds_ring = &recv_ctx->rds_rings[ring];
- adapter->ctx_desc->rcv_ctx[ring].rcv_ring_addr =
+ hwctx->rcv_rings[ring].addr =
cpu_to_le64(rds_ring->phys_addr);
- adapter->ctx_desc->rcv_ctx[ring].rcv_ring_size =
+ hwctx->rcv_rings[ring].size =
cpu_to_le32(rds_ring->num_desc);
}
- sds_ring = &recv_ctx->sds_rings[0];
- adapter->ctx_desc->sts_ring_addr = cpu_to_le64(sds_ring->phys_addr);
- adapter->ctx_desc->sts_ring_size = cpu_to_le32(sds_ring->num_desc);
- NXWR32(adapter, CRB_CTX_ADDR_REG_LO(func_id),
+ for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+ sds_ring = &recv_ctx->sds_rings[ring];
+
+ if (ring == 0) {
+ hwctx->sts_ring_addr = cpu_to_le64(sds_ring->phys_addr);
+ hwctx->sts_ring_size = cpu_to_le32(sds_ring->num_desc);
+ }
+ hwctx->sts_rings[ring].addr = cpu_to_le64(sds_ring->phys_addr);
+ hwctx->sts_rings[ring].size = cpu_to_le32(sds_ring->num_desc);
+ hwctx->sts_rings[ring].msi_index = cpu_to_le16(ring);
+ }
+ hwctx->sts_ring_count = cpu_to_le32(adapter->max_sds_rings);
+
+ signature = (adapter->max_sds_rings > 1) ?
+ NETXEN_CTX_SIGNATURE_V2 : NETXEN_CTX_SIGNATURE;
+
+ NXWR32(adapter, CRB_CTX_ADDR_REG_LO(port),
lower32(adapter->ctx_desc_phys_addr));
- NXWR32(adapter, CRB_CTX_ADDR_REG_HI(func_id),
+ NXWR32(adapter, CRB_CTX_ADDR_REG_HI(port),
upper32(adapter->ctx_desc_phys_addr));
- NXWR32(adapter, CRB_CTX_SIGNATURE_REG(func_id),
- NETXEN_CTX_SIGNATURE | func_id);
+ NXWR32(adapter, CRB_CTX_SIGNATURE_REG(port),
+ signature | port);
return 0;
}
-static uint32_t sw_int_mask[4] = {
- CRB_SW_INT_MASK_0, CRB_SW_INT_MASK_1,
- CRB_SW_INT_MASK_2, CRB_SW_INT_MASK_3
-};
-
int netxen_alloc_hw_resources(struct netxen_adapter *adapter)
{
void *addr;
@@ -538,6 +596,7 @@
struct pci_dev *pdev = adapter->pdev;
struct net_device *netdev = adapter->netdev;
+ int port = adapter->portnum;
addr = pci_alloc_consistent(pdev,
sizeof(struct netxen_ring_ctx) + sizeof(uint32_t),
@@ -549,7 +608,7 @@
}
memset(addr, 0, sizeof(struct netxen_ring_ctx));
adapter->ctx_desc = (struct netxen_ring_ctx *)addr;
- adapter->ctx_desc->ctx_id = cpu_to_le32(adapter->portnum);
+ adapter->ctx_desc->ctx_id = cpu_to_le32(port);
adapter->ctx_desc->cmd_consumer_offset =
cpu_to_le64(adapter->ctx_desc_phys_addr +
sizeof(struct netxen_ring_ctx));
@@ -586,8 +645,7 @@
if (adapter->fw_major < 4)
rds_ring->crb_rcv_producer =
- recv_crb_registers[adapter->portnum].
- crb_rcv_producer[ring];
+ recv_crb_registers[port].crb_rcv_producer[ring];
}
for (ring = 0; ring < adapter->max_sds_rings; ring++) {
@@ -604,6 +662,12 @@
goto err_out_free;
}
sds_ring->desc_head = (struct status_desc *)addr;
+
+ sds_ring->crb_sts_consumer =
+ recv_crb_registers[port].crb_sts_consumer[ring];
+
+ sds_ring->crb_intr_mask =
+ recv_crb_registers[port].sw_int_mask[ring];
}
@@ -615,19 +679,11 @@
if (err)
goto err_out_free;
} else {
- sds_ring = &recv_ctx->sds_rings[0];
- sds_ring->crb_sts_consumer =
- recv_crb_registers[adapter->portnum].crb_sts_consumer;
-
- recv_ctx->sds_rings[0].crb_intr_mask =
- sw_int_mask[adapter->portnum];
-
err = netxen_init_old_ctx(adapter);
if (err) {
netxen_free_hw_resources(adapter);
return err;
}
-
}
return 0;
@@ -645,9 +701,16 @@
struct nx_host_tx_ring *tx_ring;
int ring;
+ int port = adapter->portnum;
+
if (adapter->fw_major >= 4) {
nx_fw_cmd_destroy_tx_ctx(adapter);
nx_fw_cmd_destroy_rx_ctx(adapter);
+ } else {
+ netxen_api_lock(adapter);
+ NXWR32(adapter, CRB_CTX_SIGNATURE_REG(port),
+ NETXEN_CTX_RESET | port);
+ netxen_api_unlock(adapter);
}
if (adapter->ctx_desc != NULL) {