static void qede_remove(struct pci_dev *pdev);
static void qede_shutdown(struct pci_dev *pdev);
-static int qede_alloc_rx_buffer(struct qede_dev *edev,
- struct qede_rx_queue *rxq);
static void qede_link_update(void *dev, struct qed_link_output *link);
/* The qede lock is used to protect driver state change and driver flows that
}
/* Unmap the data and free skb when mapping failed during start_xmit */
-static void qede_free_failed_tx_pkt(struct qede_dev *edev,
- struct qede_tx_queue *txq,
+static void qede_free_failed_tx_pkt(struct qede_tx_queue *txq,
struct eth_tx_1st_bd *first_bd,
int nbd, bool data_split)
{
nbd--;
}
- dma_unmap_single(&edev->pdev->dev, BD_UNMAP_ADDR(first_bd),
+ dma_unmap_single(txq->dev, BD_UNMAP_ADDR(first_bd),
BD_UNMAP_LEN(first_bd) + split_bd_len, DMA_TO_DEVICE);
/* Unmap the data of the skb frags */
tx_data_bd = (struct eth_tx_bd *)
qed_chain_produce(&txq->tx_pbl);
if (tx_data_bd->nbytes)
- dma_unmap_page(&edev->pdev->dev,
+ dma_unmap_page(txq->dev,
BD_UNMAP_ADDR(tx_data_bd),
BD_UNMAP_LEN(tx_data_bd), DMA_TO_DEVICE);
}
txq->sw_tx_ring[idx].flags = 0;
}
-static u32 qede_xmit_type(struct qede_dev *edev,
- struct sk_buff *skb, int *ipv6_ext)
+static u32 qede_xmit_type(struct sk_buff *skb, int *ipv6_ext)
{
u32 rc = XMIT_L4_CSUM;
__be16 l3_proto;
second_bd->data.bitfields2 = cpu_to_le16(bd2_bits2);
}
-static int map_frag_to_bd(struct qede_dev *edev,
+static int map_frag_to_bd(struct qede_tx_queue *txq,
skb_frag_t *frag, struct eth_tx_bd *bd)
{
dma_addr_t mapping;
/* Map skb non-linear frag data for DMA */
- mapping = skb_frag_dma_map(&edev->pdev->dev, frag, 0,
+ mapping = skb_frag_dma_map(txq->dev, frag, 0,
skb_frag_size(frag), DMA_TO_DEVICE);
- if (unlikely(dma_mapping_error(&edev->pdev->dev, mapping))) {
- DP_NOTICE(edev, "Unable to map frag - dropping packet\n");
+ if (unlikely(dma_mapping_error(txq->dev, mapping)))
return -ENOMEM;
- }
/* Setup the data pointer of the frag data */
BD_SET_UNMAP_ADDR_LEN(bd, mapping, skb_frag_size(frag));
/* +2 for 1st BD for headers and 2nd BD for headlen (if required) */
#if ((MAX_SKB_FRAGS + 2) > ETH_TX_MAX_BDS_PER_NON_LSO_PACKET)
-static bool qede_pkt_req_lin(struct qede_dev *edev, struct sk_buff *skb,
- u8 xmit_type)
+static bool qede_pkt_req_lin(struct sk_buff *skb, u8 xmit_type)
{
int allowed_frags = ETH_TX_MAX_BDS_PER_NON_LSO_PACKET - 1;
WARN_ON(qed_chain_get_elem_left(&txq->tx_pbl) < (MAX_SKB_FRAGS + 1));
- xmit_type = qede_xmit_type(edev, skb, &ipv6_ext);
+ xmit_type = qede_xmit_type(skb, &ipv6_ext);
#if ((MAX_SKB_FRAGS + 2) > ETH_TX_MAX_BDS_PER_NON_LSO_PACKET)
- if (qede_pkt_req_lin(edev, skb, xmit_type)) {
+ if (qede_pkt_req_lin(skb, xmit_type)) {
if (skb_linearize(skb)) {
DP_NOTICE(edev,
"SKB linearization failed - silently dropping this SKB\n");
1 << ETH_TX_1ST_BD_FLAGS_START_BD_SHIFT;
/* Map skb linear data for DMA and set in the first BD */
- mapping = dma_map_single(&edev->pdev->dev, skb->data,
+ mapping = dma_map_single(txq->dev, skb->data,
skb_headlen(skb), DMA_TO_DEVICE);
- if (unlikely(dma_mapping_error(&edev->pdev->dev, mapping))) {
+ if (unlikely(dma_mapping_error(txq->dev, mapping))) {
DP_NOTICE(edev, "SKB mapping failed\n");
- qede_free_failed_tx_pkt(edev, txq, first_bd, 0, false);
+ qede_free_failed_tx_pkt(txq, first_bd, 0, false);
qede_update_tx_producer(txq);
return NETDEV_TX_OK;
}
/* Handle fragmented skb */
/* special handle for frags inside 2nd and 3rd bds.. */
while (tx_data_bd && frag_idx < skb_shinfo(skb)->nr_frags) {
- rc = map_frag_to_bd(edev,
+ rc = map_frag_to_bd(txq,
&skb_shinfo(skb)->frags[frag_idx],
tx_data_bd);
if (rc) {
- qede_free_failed_tx_pkt(edev, txq, first_bd, nbd,
- data_split);
+ qede_free_failed_tx_pkt(txq, first_bd, nbd, data_split);
qede_update_tx_producer(txq);
return NETDEV_TX_OK;
}
memset(tx_data_bd, 0, sizeof(*tx_data_bd));
- rc = map_frag_to_bd(edev,
+ rc = map_frag_to_bd(txq,
&skb_shinfo(skb)->frags[frag_idx],
tx_data_bd);
if (rc) {
- qede_free_failed_tx_pkt(edev, txq, first_bd, nbd,
- data_split);
+ qede_free_failed_tx_pkt(txq, first_bd, nbd, data_split);
qede_update_tx_producer(txq);
return NETDEV_TX_OK;
}
/* This function reuses the buffer(from an offset) from
* consumer index to producer index in the bd ring
*/
-static inline void qede_reuse_page(struct qede_dev *edev,
- struct qede_rx_queue *rxq,
+static inline void qede_reuse_page(struct qede_rx_queue *rxq,
struct sw_rx_data *curr_cons)
{
struct eth_rx_bd *rx_bd_prod = qed_chain_produce(&rxq->rx_bd_ring);
/* In case of allocation failures reuse buffers
* from consumer index to produce buffers for firmware
*/
-void qede_recycle_rx_bd_ring(struct qede_rx_queue *rxq,
- struct qede_dev *edev, u8 count)
+void qede_recycle_rx_bd_ring(struct qede_rx_queue *rxq, u8 count)
{
struct sw_rx_data *curr_cons;
for (; count > 0; count--) {
curr_cons = &rxq->sw_rx_ring[rxq->sw_rx_cons & NUM_RX_BDS_MAX];
- qede_reuse_page(edev, rxq, curr_cons);
+ qede_reuse_page(rxq, curr_cons);
qede_rx_bd_ring_consume(rxq);
}
}
-static inline int qede_realloc_rx_buffer(struct qede_dev *edev,
- struct qede_rx_queue *rxq,
+static int qede_alloc_rx_buffer(struct qede_rx_queue *rxq)
+{
+ struct sw_rx_data *sw_rx_data;
+ struct eth_rx_bd *rx_bd;
+ dma_addr_t mapping;
+ struct page *data;
+
+ data = alloc_pages(GFP_ATOMIC, 0);
+ if (unlikely(!data))
+ return -ENOMEM;
+
+ /* Map the entire page as it would be used
+ * for multiple RX buffer segment size mapping.
+ */
+ mapping = dma_map_page(rxq->dev, data, 0,
+ PAGE_SIZE, DMA_FROM_DEVICE);
+ if (unlikely(dma_mapping_error(rxq->dev, mapping))) {
+ __free_page(data);
+ return -ENOMEM;
+ }
+
+ sw_rx_data = &rxq->sw_rx_ring[rxq->sw_rx_prod & NUM_RX_BDS_MAX];
+ sw_rx_data->page_offset = 0;
+ sw_rx_data->data = data;
+ sw_rx_data->mapping = mapping;
+
+ /* Advance PROD and get BD pointer */
+ rx_bd = (struct eth_rx_bd *)qed_chain_produce(&rxq->rx_bd_ring);
+ WARN_ON(!rx_bd);
+ rx_bd->addr.hi = cpu_to_le32(upper_32_bits(mapping));
+ rx_bd->addr.lo = cpu_to_le32(lower_32_bits(mapping));
+
+ rxq->sw_rx_prod++;
+
+ return 0;
+}
+
+static inline int qede_realloc_rx_buffer(struct qede_rx_queue *rxq,
struct sw_rx_data *curr_cons)
{
/* Move to the next segment in the page */
curr_cons->page_offset += rxq->rx_buf_seg_size;
if (curr_cons->page_offset == PAGE_SIZE) {
- if (unlikely(qede_alloc_rx_buffer(edev, rxq))) {
+ if (unlikely(qede_alloc_rx_buffer(rxq))) {
/* Since we failed to allocate new buffer
* current buffer can be used again.
*/
return -ENOMEM;
}
- dma_unmap_page(&edev->pdev->dev, curr_cons->mapping,
+ dma_unmap_page(rxq->dev, curr_cons->mapping,
PAGE_SIZE, DMA_FROM_DEVICE);
} else {
/* Increment refcount of the page as we don't want
* which can be recycled multiple times by the driver.
*/
page_ref_inc(curr_cons->data);
- qede_reuse_page(edev, rxq, curr_cons);
+ qede_reuse_page(rxq, curr_cons);
}
return 0;
static inline void qede_skb_receive(struct qede_dev *edev,
struct qede_fastpath *fp,
+ struct qede_rx_queue *rxq,
struct sk_buff *skb, u16 vlan_tag)
{
if (vlan_tag)
current_bd->data, current_bd->page_offset,
len_on_bd);
- if (unlikely(qede_realloc_rx_buffer(edev, rxq, current_bd))) {
+ if (unlikely(qede_realloc_rx_buffer(rxq, current_bd))) {
/* Incr page ref count to reuse on allocation failure
* so that it doesn't get freed while freeing SKB.
*/
out:
tpa_info->state = QEDE_AGG_STATE_ERROR;
- qede_recycle_rx_bd_ring(rxq, edev, 1);
+ qede_recycle_rx_bd_ring(rxq, 1);
+
return -ENOMEM;
}
send_skb:
skb_record_rx_queue(skb, fp->rxq->rxq_id);
- qede_skb_receive(edev, fp, skb, vlan_tag);
+ qede_skb_receive(edev, fp, fp->rxq, skb, vlan_tag);
}
static inline void qede_tpa_cont(struct qede_dev *edev,
if (len + pad <= edev->rx_copybreak) {
memcpy(skb_put(skb, len),
page_address(page) + pad + offset, len);
- qede_reuse_page(edev, rxq, bd);
+ qede_reuse_page(rxq, bd);
goto out;
}
skb->data_len -= pull_len;
skb->tail += pull_len;
- if (unlikely(qede_realloc_rx_buffer(edev, rxq, bd))) {
+ if (unlikely(qede_realloc_rx_buffer(rxq, bd))) {
/* Incr page ref count to reuse on allocation failure so
* that it doesn't get freed while freeing SKB [as its
* already mapped there].
}
/* We need a replacement buffer for each BD */
- if (unlikely(qede_alloc_rx_buffer(edev, rxq)))
+ if (unlikely(qede_alloc_rx_buffer(rxq)))
goto out;
/* Now that we've allocated the replacement buffer,
bd = &rxq->sw_rx_ring[bd_cons_idx];
qede_rx_bd_ring_consume(rxq);
- dma_unmap_page(&edev->pdev->dev, bd->mapping,
+ dma_unmap_page(rxq->dev, bd->mapping,
PAGE_SIZE, DMA_FROM_DEVICE);
skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags++,
"CQE has error, flags = %x, dropping incoming packet\n",
parse_flag);
rxq->rx_hw_errors++;
- qede_recycle_rx_bd_ring(rxq, edev, fp_cqe->bd_num);
+ qede_recycle_rx_bd_ring(rxq, fp_cqe->bd_num);
return 0;
}
}
skb = qede_rx_allocate_skb(edev, rxq, bd, len, pad);
if (!skb) {
rxq->rx_alloc_errors++;
- qede_recycle_rx_bd_ring(rxq, edev, fp_cqe->bd_num);
+ qede_recycle_rx_bd_ring(rxq, fp_cqe->bd_num);
return 0;
}
fp_cqe, len);
if (unlikely(unmapped_frags > 0)) {
- qede_recycle_rx_bd_ring(rxq, edev, unmapped_frags);
+ qede_recycle_rx_bd_ring(rxq, unmapped_frags);
dev_kfree_skb_any(skb);
return 0;
}
skb_record_rx_queue(skb, rxq->rxq_id);
/* SKB is prepared - pass it to stack */
- qede_skb_receive(edev, fp, skb, le16_to_cpu(fp_cqe->vlan_tag));
+ qede_skb_receive(edev, fp, rxq, skb, le16_to_cpu(fp_cqe->vlan_tag));
return 1;
}
edev->ops->common->chain_free(edev->cdev, &rxq->rx_comp_ring);
}
-static int qede_alloc_rx_buffer(struct qede_dev *edev,
- struct qede_rx_queue *rxq)
-{
- struct sw_rx_data *sw_rx_data;
- struct eth_rx_bd *rx_bd;
- dma_addr_t mapping;
- struct page *data;
-
- data = alloc_pages(GFP_ATOMIC, 0);
- if (unlikely(!data)) {
- DP_NOTICE(edev, "Failed to allocate Rx data [page]\n");
- return -ENOMEM;
- }
-
- /* Map the entire page as it would be used
- * for multiple RX buffer segment size mapping.
- */
- mapping = dma_map_page(&edev->pdev->dev, data, 0,
- PAGE_SIZE, DMA_FROM_DEVICE);
- if (unlikely(dma_mapping_error(&edev->pdev->dev, mapping))) {
- __free_page(data);
- DP_NOTICE(edev, "Failed to map Rx buffer\n");
- return -ENOMEM;
- }
-
- sw_rx_data = &rxq->sw_rx_ring[rxq->sw_rx_prod & NUM_RX_BDS_MAX];
- sw_rx_data->page_offset = 0;
- sw_rx_data->data = data;
- sw_rx_data->mapping = mapping;
-
- /* Advance PROD and get BD pointer */
- rx_bd = (struct eth_rx_bd *)qed_chain_produce(&rxq->rx_bd_ring);
- WARN_ON(!rx_bd);
- rx_bd->addr.hi = cpu_to_le32(upper_32_bits(mapping));
- rx_bd->addr.lo = cpu_to_le32(lower_32_bits(mapping));
-
- rxq->sw_rx_prod++;
-
- return 0;
-}
-
static int qede_alloc_sge_mem(struct qede_dev *edev, struct qede_rx_queue *rxq)
{
dma_addr_t mapping;
/* Allocate buffers for the Rx ring */
for (i = 0; i < rxq->num_rx_buffers; i++) {
- rc = qede_alloc_rx_buffer(edev, rxq);
+ rc = qede_alloc_rx_buffer(rxq);
if (rc) {
DP_ERR(edev,
"Rx buffers allocation failed at index %d\n", i);
if (fp->type & QEDE_FASTPATH_RX) {
fp->rxq->rxq_id = rxq_index++;
+ fp->rxq->dev = &edev->pdev->dev;
}
if (fp->type & QEDE_FASTPATH_TX) {
fp->txq->index = txq_index++;
if (edev->dev_info.is_legacy)
fp->txq->is_legacy = 1;
+ fp->txq->dev = &edev->pdev->dev;
}
snprintf(fp->name, sizeof(fp->name), "%s-fp-%d",
projects / linux-2.6-microblaze.git / commitdiff