netxen: add netxen_nic_ctx.c
Contains rx and tx ring context management and certain
firmware commands for netxen firmware v4.0.0+.
This patch gathers all HW context management code into
netxen_nic_ctx.c.
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/drivers/net/netxen/netxen_nic_init.c b/drivers/net/netxen/netxen_nic_init.c
index 7c3fbc4..d222436 100644
--- a/drivers/net/netxen/netxen_nic_init.c
+++ b/drivers/net/netxen/netxen_nic_init.c
@@ -158,21 +158,21 @@
void netxen_release_rx_buffers(struct netxen_adapter *adapter)
{
struct netxen_recv_context *recv_ctx;
- struct netxen_rcv_desc_ctx *rcv_desc;
+ struct nx_host_rds_ring *rds_ring;
struct netxen_rx_buffer *rx_buf;
int i, ctxid, ring;
for (ctxid = 0; ctxid < MAX_RCV_CTX; ++ctxid) {
recv_ctx = &adapter->recv_ctx[ctxid];
- for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) {
- rcv_desc = &recv_ctx->rcv_desc[ring];
- for (i = 0; i < rcv_desc->max_rx_desc_count; ++i) {
- rx_buf = &(rcv_desc->rx_buf_arr[i]);
+ for (ring = 0; ring < adapter->max_rds_rings; ring++) {
+ rds_ring = &recv_ctx->rds_rings[ring];
+ for (i = 0; i < rds_ring->max_rx_desc_count; ++i) {
+ rx_buf = &(rds_ring->rx_buf_arr[i]);
if (rx_buf->state == NETXEN_BUFFER_FREE)
continue;
pci_unmap_single(adapter->pdev,
rx_buf->dma,
- rcv_desc->dma_size,
+ rds_ring->dma_size,
PCI_DMA_FROMDEVICE);
if (rx_buf->skb != NULL)
dev_kfree_skb_any(rx_buf->skb);
@@ -216,16 +216,16 @@
void netxen_free_sw_resources(struct netxen_adapter *adapter)
{
struct netxen_recv_context *recv_ctx;
- struct netxen_rcv_desc_ctx *rcv_desc;
+ struct nx_host_rds_ring *rds_ring;
int ctx, ring;
for (ctx = 0; ctx < MAX_RCV_CTX; ctx++) {
recv_ctx = &adapter->recv_ctx[ctx];
- for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) {
- rcv_desc = &recv_ctx->rcv_desc[ring];
- if (rcv_desc->rx_buf_arr) {
- vfree(rcv_desc->rx_buf_arr);
- rcv_desc->rx_buf_arr = NULL;
+ for (ring = 0; ring < adapter->max_rds_rings; ring++) {
+ rds_ring = &recv_ctx->rds_rings[ring];
+ if (rds_ring->rx_buf_arr) {
+ vfree(rds_ring->rx_buf_arr);
+ rds_ring->rx_buf_arr = NULL;
}
}
}
@@ -237,7 +237,7 @@
int netxen_alloc_sw_resources(struct netxen_adapter *adapter)
{
struct netxen_recv_context *recv_ctx;
- struct netxen_rcv_desc_ctx *rcv_desc;
+ struct nx_host_rds_ring *rds_ring;
struct netxen_rx_buffer *rx_buf;
int ctx, ring, i, num_rx_bufs;
@@ -255,52 +255,52 @@
for (ctx = 0; ctx < MAX_RCV_CTX; ctx++) {
recv_ctx = &adapter->recv_ctx[ctx];
- for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) {
- rcv_desc = &recv_ctx->rcv_desc[ring];
+ for (ring = 0; ring < adapter->max_rds_rings; ring++) {
+ rds_ring = &recv_ctx->rds_rings[ring];
switch (RCV_DESC_TYPE(ring)) {
case RCV_DESC_NORMAL:
- rcv_desc->max_rx_desc_count =
+ rds_ring->max_rx_desc_count =
adapter->max_rx_desc_count;
- rcv_desc->flags = RCV_DESC_NORMAL;
- rcv_desc->dma_size = RX_DMA_MAP_LEN;
- rcv_desc->skb_size = MAX_RX_BUFFER_LENGTH;
+ rds_ring->flags = RCV_DESC_NORMAL;
+ rds_ring->dma_size = RX_DMA_MAP_LEN;
+ rds_ring->skb_size = MAX_RX_BUFFER_LENGTH;
break;
case RCV_DESC_JUMBO:
- rcv_desc->max_rx_desc_count =
+ rds_ring->max_rx_desc_count =
adapter->max_jumbo_rx_desc_count;
- rcv_desc->flags = RCV_DESC_JUMBO;
- rcv_desc->dma_size = RX_JUMBO_DMA_MAP_LEN;
- rcv_desc->skb_size =
+ rds_ring->flags = RCV_DESC_JUMBO;
+ rds_ring->dma_size = RX_JUMBO_DMA_MAP_LEN;
+ rds_ring->skb_size =
MAX_RX_JUMBO_BUFFER_LENGTH;
break;
case RCV_RING_LRO:
- rcv_desc->max_rx_desc_count =
+ rds_ring->max_rx_desc_count =
adapter->max_lro_rx_desc_count;
- rcv_desc->flags = RCV_DESC_LRO;
- rcv_desc->dma_size = RX_LRO_DMA_MAP_LEN;
- rcv_desc->skb_size = MAX_RX_LRO_BUFFER_LENGTH;
+ rds_ring->flags = RCV_DESC_LRO;
+ rds_ring->dma_size = RX_LRO_DMA_MAP_LEN;
+ rds_ring->skb_size = MAX_RX_LRO_BUFFER_LENGTH;
break;
}
- rcv_desc->rx_buf_arr = (struct netxen_rx_buffer *)
+ rds_ring->rx_buf_arr = (struct netxen_rx_buffer *)
vmalloc(RCV_BUFFSIZE);
- if (rcv_desc->rx_buf_arr == NULL) {
+ if (rds_ring->rx_buf_arr == NULL) {
printk(KERN_ERR "%s: Failed to allocate "
"rx buffer ring %d\n",
netdev->name, ring);
/* free whatever was already allocated */
goto err_out;
}
- memset(rcv_desc->rx_buf_arr, 0, RCV_BUFFSIZE);
- rcv_desc->begin_alloc = 0;
+ memset(rds_ring->rx_buf_arr, 0, RCV_BUFFSIZE);
+ rds_ring->begin_alloc = 0;
/*
* Now go through all of them, set reference handles
* and put them in the queues.
*/
- num_rx_bufs = rcv_desc->max_rx_desc_count;
- rx_buf = rcv_desc->rx_buf_arr;
+ num_rx_bufs = rds_ring->max_rx_desc_count;
+ rx_buf = rds_ring->rx_buf_arr;
for (i = 0; i < num_rx_bufs; i++) {
rx_buf->ref_handle = i;
rx_buf->state = NETXEN_BUFFER_FREE;
@@ -1154,7 +1154,7 @@
struct sk_buff *skb;
u32 length = netxen_get_sts_totallength(sts_data);
u32 desc_ctx;
- struct netxen_rcv_desc_ctx *rcv_desc;
+ struct nx_host_rds_ring *rds_ring;
int ret;
desc_ctx = netxen_get_sts_type(sts_data);
@@ -1164,13 +1164,13 @@
return;
}
- rcv_desc = &recv_ctx->rcv_desc[desc_ctx];
- if (unlikely(index > rcv_desc->max_rx_desc_count)) {
+ rds_ring = &recv_ctx->rds_rings[desc_ctx];
+ if (unlikely(index > rds_ring->max_rx_desc_count)) {
DPRINTK(ERR, "Got a buffer index:%x Max is %x\n",
- index, rcv_desc->max_rx_desc_count);
+ index, rds_ring->max_rx_desc_count);
return;
}
- buffer = &rcv_desc->rx_buf_arr[index];
+ buffer = &rds_ring->rx_buf_arr[index];
if (desc_ctx == RCV_DESC_LRO_CTXID) {
buffer->lro_current_frags++;
if (netxen_get_sts_desc_lro_last_frag(desc)) {
@@ -1191,7 +1191,7 @@
}
}
- pci_unmap_single(pdev, buffer->dma, rcv_desc->dma_size,
+ pci_unmap_single(pdev, buffer->dma, rds_ring->dma_size,
PCI_DMA_FROMDEVICE);
skb = (struct sk_buff *)buffer->skb;
@@ -1249,7 +1249,7 @@
consumer = (consumer + 1) & (adapter->max_rx_desc_count - 1);
count++;
}
- for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++)
+ for (ring = 0; ring < adapter->max_rds_rings; ring++)
netxen_post_rx_buffers_nodb(adapter, ctxid, ring);
/* update the consumer index in phantom */
@@ -1340,7 +1340,7 @@
struct pci_dev *pdev = adapter->pdev;
struct sk_buff *skb;
struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctx]);
- struct netxen_rcv_desc_ctx *rcv_desc = NULL;
+ struct nx_host_rds_ring *rds_ring = NULL;
uint producer;
struct rcv_desc *pdesc;
struct netxen_rx_buffer *buffer;
@@ -1349,27 +1349,27 @@
netxen_ctx_msg msg = 0;
dma_addr_t dma;
- rcv_desc = &recv_ctx->rcv_desc[ringid];
+ rds_ring = &recv_ctx->rds_rings[ringid];
- producer = rcv_desc->producer;
- index = rcv_desc->begin_alloc;
- buffer = &rcv_desc->rx_buf_arr[index];
+ producer = rds_ring->producer;
+ index = rds_ring->begin_alloc;
+ buffer = &rds_ring->rx_buf_arr[index];
/* We can start writing rx descriptors into the phantom memory. */
while (buffer->state == NETXEN_BUFFER_FREE) {
- skb = dev_alloc_skb(rcv_desc->skb_size);
+ skb = dev_alloc_skb(rds_ring->skb_size);
if (unlikely(!skb)) {
/*
* TODO
* We need to schedule the posting of buffers to the pegs.
*/
- rcv_desc->begin_alloc = index;
+ rds_ring->begin_alloc = index;
DPRINTK(ERR, "netxen_post_rx_buffers: "
" allocated only %d buffers\n", count);
break;
}
count++; /* now there should be no failure */
- pdesc = &rcv_desc->desc_head[producer];
+ pdesc = &rds_ring->desc_head[producer];
#if defined(XGB_DEBUG)
*(unsigned long *)(skb->head) = 0xc0debabe;
@@ -1382,7 +1382,7 @@
* buffer after it has been filled FSL TBD TBD
* skb->dev = netdev;
*/
- dma = pci_map_single(pdev, skb->data, rcv_desc->dma_size,
+ dma = pci_map_single(pdev, skb->data, rds_ring->dma_size,
PCI_DMA_FROMDEVICE);
pdesc->addr_buffer = cpu_to_le64(dma);
buffer->skb = skb;
@@ -1390,36 +1390,40 @@
buffer->dma = dma;
/* make a rcv descriptor */
pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
- pdesc->buffer_length = cpu_to_le32(rcv_desc->dma_size);
+ pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
DPRINTK(INFO, "done writing descripter\n");
producer =
- get_next_index(producer, rcv_desc->max_rx_desc_count);
- index = get_next_index(index, rcv_desc->max_rx_desc_count);
- buffer = &rcv_desc->rx_buf_arr[index];
+ get_next_index(producer, rds_ring->max_rx_desc_count);
+ index = get_next_index(index, rds_ring->max_rx_desc_count);
+ buffer = &rds_ring->rx_buf_arr[index];
}
/* if we did allocate buffers, then write the count to Phantom */
if (count) {
- rcv_desc->begin_alloc = index;
- rcv_desc->producer = producer;
+ rds_ring->begin_alloc = index;
+ rds_ring->producer = producer;
/* Window = 1 */
adapter->pci_write_normalize(adapter,
- rcv_desc->crb_rcv_producer,
- (producer-1) & (rcv_desc->max_rx_desc_count-1));
+ rds_ring->crb_rcv_producer,
+ (producer-1) & (rds_ring->max_rx_desc_count-1));
+
+ if (adapter->fw_major < 4) {
/*
* Write a doorbell msg to tell phanmon of change in
* receive ring producer
+ * Only for firmware version < 4.0.0
*/
netxen_set_msg_peg_id(msg, NETXEN_RCV_PEG_DB_ID);
netxen_set_msg_privid(msg);
netxen_set_msg_count(msg,
((producer -
- 1) & (rcv_desc->
+ 1) & (rds_ring->
max_rx_desc_count - 1)));
netxen_set_msg_ctxid(msg, adapter->portnum);
netxen_set_msg_opcode(msg, NETXEN_RCV_PRODUCER(ringid));
writel(msg,
DB_NORMALIZE(adapter,
NETXEN_RCV_PRODUCER_OFFSET));
+ }
}
}
@@ -1429,32 +1433,32 @@
struct pci_dev *pdev = adapter->pdev;
struct sk_buff *skb;
struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctx]);
- struct netxen_rcv_desc_ctx *rcv_desc = NULL;
+ struct nx_host_rds_ring *rds_ring = NULL;
u32 producer;
struct rcv_desc *pdesc;
struct netxen_rx_buffer *buffer;
int count = 0;
int index = 0;
- rcv_desc = &recv_ctx->rcv_desc[ringid];
+ rds_ring = &recv_ctx->rds_rings[ringid];
- producer = rcv_desc->producer;
- index = rcv_desc->begin_alloc;
- buffer = &rcv_desc->rx_buf_arr[index];
+ producer = rds_ring->producer;
+ index = rds_ring->begin_alloc;
+ buffer = &rds_ring->rx_buf_arr[index];
/* We can start writing rx descriptors into the phantom memory. */
while (buffer->state == NETXEN_BUFFER_FREE) {
- skb = dev_alloc_skb(rcv_desc->skb_size);
+ skb = dev_alloc_skb(rds_ring->skb_size);
if (unlikely(!skb)) {
/*
* We need to schedule the posting of buffers to the pegs.
*/
- rcv_desc->begin_alloc = index;
+ rds_ring->begin_alloc = index;
DPRINTK(ERR, "netxen_post_rx_buffers_nodb: "
" allocated only %d buffers\n", count);
break;
}
count++; /* now there should be no failure */
- pdesc = &rcv_desc->desc_head[producer];
+ pdesc = &rds_ring->desc_head[producer];
skb_reserve(skb, 2);
/*
* This will be setup when we receive the
@@ -1464,27 +1468,27 @@
buffer->skb = skb;
buffer->state = NETXEN_BUFFER_BUSY;
buffer->dma = pci_map_single(pdev, skb->data,
- rcv_desc->dma_size,
+ rds_ring->dma_size,
PCI_DMA_FROMDEVICE);
/* make a rcv descriptor */
pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
- pdesc->buffer_length = cpu_to_le32(rcv_desc->dma_size);
+ pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
pdesc->addr_buffer = cpu_to_le64(buffer->dma);
producer =
- get_next_index(producer, rcv_desc->max_rx_desc_count);
- index = get_next_index(index, rcv_desc->max_rx_desc_count);
- buffer = &rcv_desc->rx_buf_arr[index];
+ get_next_index(producer, rds_ring->max_rx_desc_count);
+ index = get_next_index(index, rds_ring->max_rx_desc_count);
+ buffer = &rds_ring->rx_buf_arr[index];
}
/* if we did allocate buffers, then write the count to Phantom */
if (count) {
- rcv_desc->begin_alloc = index;
- rcv_desc->producer = producer;
+ rds_ring->begin_alloc = index;
+ rds_ring->producer = producer;
/* Window = 1 */
adapter->pci_write_normalize(adapter,
- rcv_desc->crb_rcv_producer,
- (producer-1) & (rcv_desc->max_rx_desc_count-1));
+ rds_ring->crb_rcv_producer,
+ (producer-1) & (rds_ring->max_rx_desc_count-1));
wmb();
}
}