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path: root/drivers/net/ethernet/intel/ixgbe
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Diffstat (limited to 'drivers/net/ethernet/intel/ixgbe')
-rw-r--r--drivers/net/ethernet/intel/ixgbe/ixgbe.h27
-rw-r--r--drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_nl.c2
-rw-r--r--drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c10
-rw-r--r--drivers/net/ethernet/intel/ixgbe/ixgbe_main.c554
4 files changed, 324 insertions, 269 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
index e04a8e49e6dc..378ce46a7f92 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
@@ -91,13 +91,16 @@
#define IXGBE_RX_BUFFER_WRITE 16 /* Must be power of 2 */
#define IXGBE_TX_FLAGS_CSUM (u32)(1)
-#define IXGBE_TX_FLAGS_VLAN (u32)(1 << 1)
-#define IXGBE_TX_FLAGS_TSO (u32)(1 << 2)
-#define IXGBE_TX_FLAGS_IPV4 (u32)(1 << 3)
-#define IXGBE_TX_FLAGS_FCOE (u32)(1 << 4)
-#define IXGBE_TX_FLAGS_FSO (u32)(1 << 5)
+#define IXGBE_TX_FLAGS_HW_VLAN (u32)(1 << 1)
+#define IXGBE_TX_FLAGS_SW_VLAN (u32)(1 << 2)
+#define IXGBE_TX_FLAGS_TSO (u32)(1 << 3)
+#define IXGBE_TX_FLAGS_IPV4 (u32)(1 << 4)
+#define IXGBE_TX_FLAGS_FCOE (u32)(1 << 5)
+#define IXGBE_TX_FLAGS_FSO (u32)(1 << 6)
+#define IXGBE_TX_FLAGS_MAPPED_AS_PAGE (u32)(1 << 7)
#define IXGBE_TX_FLAGS_VLAN_MASK 0xffff0000
-#define IXGBE_TX_FLAGS_VLAN_PRIO_MASK 0x0000e000
+#define IXGBE_TX_FLAGS_VLAN_PRIO_MASK 0xe0000000
+#define IXGBE_TX_FLAGS_VLAN_PRIO_SHIFT 29
#define IXGBE_TX_FLAGS_VLAN_SHIFT 16
#define IXGBE_MAX_RSC_INT_RATE 162760
@@ -141,14 +144,14 @@ struct vf_macvlans {
/* wrapper around a pointer to a socket buffer,
* so a DMA handle can be stored along with the buffer */
struct ixgbe_tx_buffer {
- struct sk_buff *skb;
- dma_addr_t dma;
+ union ixgbe_adv_tx_desc *next_to_watch;
unsigned long time_stamp;
- u16 length;
- u16 next_to_watch;
- unsigned int bytecount;
+ dma_addr_t dma;
+ u32 length;
+ u32 tx_flags;
+ struct sk_buff *skb;
+ u32 bytecount;
u16 gso_segs;
- u8 mapped_as_page;
};
struct ixgbe_rx_buffer {
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_nl.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_nl.c
index 0ace6ce1d0b4..da6d53e7af99 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_nl.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_nl.c
@@ -414,7 +414,7 @@ static u8 ixgbe_dcbnl_set_all(struct net_device *netdev)
u8 prio_tc[MAX_TRAFFIC_CLASS] = {0, 1, 2, 3, 4, 5, 6, 7};
int max_frame = adapter->netdev->mtu + ETH_HLEN + ETH_FCS_LEN;
-#ifdef CONFIG_FCOE
+#ifdef IXGBE_FCOE
if (adapter->netdev->features & NETIF_F_FCOE_MTU)
max_frame = max(max_frame, IXGBE_FCOE_JUMBO_FRAME_SIZE);
#endif
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c
index 824edae77865..e9b992fe5e46 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c
@@ -241,10 +241,12 @@ static int ixgbe_fcoe_ddp_setup(struct net_device *netdev, u16 xid,
*/
if (lastsize == bufflen) {
if (j >= IXGBE_BUFFCNT_MAX) {
- e_err(drv, "xid=%x:%d,%d,%d:addr=%llx "
- "not enough user buffers. We need an extra "
- "buffer because lastsize is bufflen.\n",
- xid, i, j, dmacount, (u64)addr);
+ printk_once("Will NOT use DDP since there are not "
+ "enough user buffers. We need an extra "
+ "buffer because lastsize is bufflen. "
+ "xid=%x:%d,%d,%d:addr=%llx\n",
+ xid, i, j, dmacount, (u64)addr);
+
goto out_noddp_free;
}
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index b73194c1c44a..e8aad76fa530 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -385,7 +385,7 @@ static void ixgbe_dump(struct ixgbe_adapter *adapter)
tx_ring = adapter->tx_ring[n];
tx_buffer_info =
&tx_ring->tx_buffer_info[tx_ring->next_to_clean];
- pr_info(" %5d %5X %5X %016llX %04X %3X %016llX\n",
+ pr_info(" %5d %5X %5X %016llX %04X %p %016llX\n",
n, tx_ring->next_to_use, tx_ring->next_to_clean,
(u64)tx_buffer_info->dma,
tx_buffer_info->length,
@@ -424,7 +424,7 @@ static void ixgbe_dump(struct ixgbe_adapter *adapter)
tx_buffer_info = &tx_ring->tx_buffer_info[i];
u0 = (struct my_u0 *)tx_desc;
pr_info("T [0x%03X] %016llX %016llX %016llX"
- " %04X %3X %016llX %p", i,
+ " %04X %p %016llX %p", i,
le64_to_cpu(u0->a),
le64_to_cpu(u0->b),
(u64)tx_buffer_info->dma,
@@ -643,27 +643,31 @@ static inline void ixgbe_irq_rearm_queues(struct ixgbe_adapter *adapter,
}
}
-void ixgbe_unmap_and_free_tx_resource(struct ixgbe_ring *tx_ring,
- struct ixgbe_tx_buffer *tx_buffer_info)
+static inline void ixgbe_unmap_tx_resource(struct ixgbe_ring *ring,
+ struct ixgbe_tx_buffer *tx_buffer)
{
- if (tx_buffer_info->dma) {
- if (tx_buffer_info->mapped_as_page)
- dma_unmap_page(tx_ring->dev,
- tx_buffer_info->dma,
- tx_buffer_info->length,
- DMA_TO_DEVICE);
+ if (tx_buffer->dma) {
+ if (tx_buffer->tx_flags & IXGBE_TX_FLAGS_MAPPED_AS_PAGE)
+ dma_unmap_page(ring->dev,
+ tx_buffer->dma,
+ tx_buffer->length,
+ DMA_TO_DEVICE);
else
- dma_unmap_single(tx_ring->dev,
- tx_buffer_info->dma,
- tx_buffer_info->length,
- DMA_TO_DEVICE);
- tx_buffer_info->dma = 0;
+ dma_unmap_single(ring->dev,
+ tx_buffer->dma,
+ tx_buffer->length,
+ DMA_TO_DEVICE);
}
- if (tx_buffer_info->skb) {
+ tx_buffer->dma = 0;
+}
+
+void ixgbe_unmap_and_free_tx_resource(struct ixgbe_ring *tx_ring,
+ struct ixgbe_tx_buffer *tx_buffer_info)
+{
+ ixgbe_unmap_tx_resource(tx_ring, tx_buffer_info);
+ if (tx_buffer_info->skb)
dev_kfree_skb_any(tx_buffer_info->skb);
- tx_buffer_info->skb = NULL;
- }
- tx_buffer_info->time_stamp = 0;
+ tx_buffer_info->skb = NULL;
/* tx_buffer_info must be completely set up in the transmit path */
}
@@ -797,56 +801,72 @@ static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector,
struct ixgbe_ring *tx_ring)
{
struct ixgbe_adapter *adapter = q_vector->adapter;
- union ixgbe_adv_tx_desc *tx_desc, *eop_desc;
- struct ixgbe_tx_buffer *tx_buffer_info;
+ struct ixgbe_tx_buffer *tx_buffer;
+ union ixgbe_adv_tx_desc *tx_desc;
unsigned int total_bytes = 0, total_packets = 0;
- u16 i, eop, count = 0;
+ u16 i = tx_ring->next_to_clean;
+ u16 count;
- i = tx_ring->next_to_clean;
- eop = tx_ring->tx_buffer_info[i].next_to_watch;
- eop_desc = IXGBE_TX_DESC_ADV(tx_ring, eop);
+ tx_buffer = &tx_ring->tx_buffer_info[i];
+ tx_desc = IXGBE_TX_DESC_ADV(tx_ring, i);
- while ((eop_desc->wb.status & cpu_to_le32(IXGBE_TXD_STAT_DD)) &&
- (count < q_vector->tx.work_limit)) {
- bool cleaned = false;
- rmb(); /* read buffer_info after eop_desc */
- for ( ; !cleaned; count++) {
- tx_desc = IXGBE_TX_DESC_ADV(tx_ring, i);
- tx_buffer_info = &tx_ring->tx_buffer_info[i];
+ for (count = 0; count < q_vector->tx.work_limit; count++) {
+ union ixgbe_adv_tx_desc *eop_desc = tx_buffer->next_to_watch;
+
+ /* if next_to_watch is not set then there is no work pending */
+ if (!eop_desc)
+ break;
+
+ /* if DD is not set pending work has not been completed */
+ if (!(eop_desc->wb.status & cpu_to_le32(IXGBE_TXD_STAT_DD)))
+ break;
+ /* count the packet as being completed */
+ tx_ring->tx_stats.completed++;
+
+ /* clear next_to_watch to prevent false hangs */
+ tx_buffer->next_to_watch = NULL;
+
+ /* prevent any other reads prior to eop_desc being verified */
+ rmb();
+
+ do {
+ ixgbe_unmap_tx_resource(tx_ring, tx_buffer);
tx_desc->wb.status = 0;
- cleaned = (i == eop);
+ if (likely(tx_desc == eop_desc)) {
+ eop_desc = NULL;
+ dev_kfree_skb_any(tx_buffer->skb);
+ tx_buffer->skb = NULL;
+
+ total_bytes += tx_buffer->bytecount;
+ total_packets += tx_buffer->gso_segs;
+ }
+ tx_buffer++;
+ tx_desc++;
i++;
- if (i == tx_ring->count)
+ if (unlikely(i == tx_ring->count)) {
i = 0;
- if (cleaned && tx_buffer_info->skb) {
- total_bytes += tx_buffer_info->bytecount;
- total_packets += tx_buffer_info->gso_segs;
+ tx_buffer = tx_ring->tx_buffer_info;
+ tx_desc = IXGBE_TX_DESC_ADV(tx_ring, 0);
}
- ixgbe_unmap_and_free_tx_resource(tx_ring,
- tx_buffer_info);
- }
-
- tx_ring->tx_stats.completed++;
- eop = tx_ring->tx_buffer_info[i].next_to_watch;
- eop_desc = IXGBE_TX_DESC_ADV(tx_ring, eop);
+ } while (eop_desc);
}
tx_ring->next_to_clean = i;
+ u64_stats_update_begin(&tx_ring->syncp);
tx_ring->stats.bytes += total_bytes;
tx_ring->stats.packets += total_packets;
- u64_stats_update_begin(&tx_ring->syncp);
+ u64_stats_update_end(&tx_ring->syncp);
q_vector->tx.total_bytes += total_bytes;
q_vector->tx.total_packets += total_packets;
- u64_stats_update_end(&tx_ring->syncp);
if (check_for_tx_hang(tx_ring) && ixgbe_check_tx_hang(tx_ring)) {
/* schedule immediate reset if we believe we hung */
struct ixgbe_hw *hw = &adapter->hw;
- tx_desc = IXGBE_TX_DESC_ADV(tx_ring, eop);
+ tx_desc = IXGBE_TX_DESC_ADV(tx_ring, i);
e_err(drv, "Detected Tx Unit Hang\n"
" Tx Queue <%d>\n"
" TDH, TDT <%x>, <%x>\n"
@@ -858,8 +878,8 @@ static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector,
tx_ring->queue_index,
IXGBE_READ_REG(hw, IXGBE_TDH(tx_ring->reg_idx)),
IXGBE_READ_REG(hw, IXGBE_TDT(tx_ring->reg_idx)),
- tx_ring->next_to_use, eop,
- tx_ring->tx_buffer_info[eop].time_stamp, jiffies);
+ tx_ring->next_to_use, i,
+ tx_ring->tx_buffer_info[i].time_stamp, jiffies);
netif_stop_subqueue(tx_ring->netdev, tx_ring->queue_index);
@@ -3597,7 +3617,7 @@ static void ixgbe_configure_dcb(struct ixgbe_adapter *adapter)
/* reconfigure the hardware */
if (adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE) {
-#ifdef CONFIG_FCOE
+#ifdef IXGBE_FCOE
if (adapter->netdev->features & NETIF_F_FCOE_MTU)
max_frame = max(max_frame, IXGBE_FCOE_JUMBO_FRAME_SIZE);
#endif
@@ -6351,7 +6371,7 @@ static bool ixgbe_tx_csum(struct ixgbe_ring *tx_ring,
u32 type_tucmd = 0;
if (skb->ip_summed != CHECKSUM_PARTIAL) {
- if (!(tx_flags & IXGBE_TX_FLAGS_VLAN))
+ if (!(tx_flags & IXGBE_TX_FLAGS_HW_VLAN))
return false;
} else {
u8 l4_hdr = 0;
@@ -6408,185 +6428,179 @@ static bool ixgbe_tx_csum(struct ixgbe_ring *tx_ring,
return (skb->ip_summed == CHECKSUM_PARTIAL);
}
-static int ixgbe_tx_map(struct ixgbe_adapter *adapter,
- struct ixgbe_ring *tx_ring,
- struct sk_buff *skb, u32 tx_flags,
- unsigned int first, const u8 hdr_len)
+static __le32 ixgbe_tx_cmd_type(u32 tx_flags)
{
- struct device *dev = tx_ring->dev;
- struct ixgbe_tx_buffer *tx_buffer_info;
- unsigned int len;
- unsigned int total = skb->len;
- unsigned int offset = 0, size, count = 0;
- unsigned int nr_frags = skb_shinfo(skb)->nr_frags;
- unsigned int f;
- unsigned int bytecount = skb->len;
- u16 gso_segs = 1;
- u16 i;
+ /* set type for advanced descriptor with frame checksum insertion */
+ __le32 cmd_type = cpu_to_le32(IXGBE_ADVTXD_DTYP_DATA |
+ IXGBE_ADVTXD_DCMD_IFCS |
+ IXGBE_ADVTXD_DCMD_DEXT);
- i = tx_ring->next_to_use;
+ /* set HW vlan bit if vlan is present */
+ if (tx_flags & IXGBE_TX_FLAGS_HW_VLAN)
+ cmd_type |= cpu_to_le32(IXGBE_ADVTXD_DCMD_VLE);
- if (tx_flags & IXGBE_TX_FLAGS_FCOE)
- /* excluding fcoe_crc_eof for FCoE */
- total -= sizeof(struct fcoe_crc_eof);
+ /* set segmentation enable bits for TSO/FSO */
+#ifdef IXGBE_FCOE
+ if ((tx_flags & IXGBE_TX_FLAGS_TSO) || (tx_flags & IXGBE_TX_FLAGS_FSO))
+#else
+ if (tx_flags & IXGBE_TX_FLAGS_TSO)
+#endif
+ cmd_type |= cpu_to_le32(IXGBE_ADVTXD_DCMD_TSE);
- len = min(skb_headlen(skb), total);
- while (len) {
- tx_buffer_info = &tx_ring->tx_buffer_info[i];
- size = min(len, (uint)IXGBE_MAX_DATA_PER_TXD);
-
- tx_buffer_info->length = size;
- tx_buffer_info->mapped_as_page = false;
- tx_buffer_info->dma = dma_map_single(dev,
- skb->data + offset,
- size, DMA_TO_DEVICE);
- if (dma_mapping_error(dev, tx_buffer_info->dma))
- goto dma_error;
- tx_buffer_info->time_stamp = jiffies;
- tx_buffer_info->next_to_watch = i;
+ return cmd_type;
+}
- len -= size;
- total -= size;
- offset += size;
- count++;
+static __le32 ixgbe_tx_olinfo_status(u32 tx_flags, unsigned int paylen)
+{
+ __le32 olinfo_status =
+ cpu_to_le32(paylen << IXGBE_ADVTXD_PAYLEN_SHIFT);
- if (len) {
- i++;
- if (i == tx_ring->count)
- i = 0;
- }
+ if (tx_flags & IXGBE_TX_FLAGS_TSO) {
+ olinfo_status |= cpu_to_le32(IXGBE_ADVTXD_POPTS_TXSM |
+ (1 << IXGBE_ADVTXD_IDX_SHIFT));
+ /* enble IPv4 checksum for TSO */
+ if (tx_flags & IXGBE_TX_FLAGS_IPV4)
+ olinfo_status |= cpu_to_le32(IXGBE_ADVTXD_POPTS_IXSM);
}
- for (f = 0; f < nr_frags; f++) {
- struct skb_frag_struct *frag;
+ /* enable L4 checksum for TSO and TX checksum offload */
+ if (tx_flags & IXGBE_TX_FLAGS_CSUM)
+ olinfo_status |= cpu_to_le32(IXGBE_ADVTXD_POPTS_TXSM);
- frag = &skb_shinfo(skb)->frags[f];
- len = min((unsigned int)frag->size, total);
- offset = frag->page_offset;
+#ifdef IXGBE_FCOE
+ /* use index 1 context for FCOE/FSO */
+ if (tx_flags & IXGBE_TX_FLAGS_FCOE)
+ olinfo_status |= cpu_to_le32(IXGBE_ADVTXD_CC |
+ (1 << IXGBE_ADVTXD_IDX_SHIFT));
- while (len) {
- i++;
- if (i == tx_ring->count)
- i = 0;
+#endif
+ return olinfo_status;
+}
- tx_buffer_info = &tx_ring->tx_buffer_info[i];
- size = min(len, (uint)IXGBE_MAX_DATA_PER_TXD);
-
- tx_buffer_info->length = size;
- tx_buffer_info->dma = dma_map_page(dev,
- frag->page,
- offset, size,
- DMA_TO_DEVICE);
- tx_buffer_info->mapped_as_page = true;
- if (dma_mapping_error(dev, tx_buffer_info->dma))
- goto dma_error;
- tx_buffer_info->time_stamp = jiffies;
- tx_buffer_info->next_to_watch = i;
-
- len -= size;
- total -= size;
- offset += size;
- count++;
+#define IXGBE_TXD_CMD (IXGBE_TXD_CMD_EOP | \
+ IXGBE_TXD_CMD_RS)
+
+static void ixgbe_tx_map(struct ixgbe_ring *tx_ring,
+ struct sk_buff *skb,
+ struct ixgbe_tx_buffer *first,
+ u32 tx_flags,
+ const u8 hdr_len)
+{
+ struct device *dev = tx_ring->dev;
+ struct ixgbe_tx_buffer *tx_buffer_info;
+ union ixgbe_adv_tx_desc *tx_desc;
+ dma_addr_t dma;
+ __le32 cmd_type, olinfo_status;
+ struct skb_frag_struct *frag;
+ unsigned int f = 0;
+ unsigned int data_len = skb->data_len;
+ unsigned int size = skb_headlen(skb);
+ u32 offset = 0;
+ u32 paylen = skb->len - hdr_len;
+ u16 i = tx_ring->next_to_use;
+ u16 gso_segs;
+
+#ifdef IXGBE_FCOE
+ if (tx_flags & IXGBE_TX_FLAGS_FCOE) {
+ if (data_len >= sizeof(struct fcoe_crc_eof)) {
+ data_len -= sizeof(struct fcoe_crc_eof);
+ } else {
+ size -= sizeof(struct fcoe_crc_eof) - data_len;
+ data_len = 0;
}
- if (total == 0)
- break;
}
- if (tx_flags & IXGBE_TX_FLAGS_TSO)
- gso_segs = skb_shinfo(skb)->gso_segs;
-#ifdef IXGBE_FCOE
- /* adjust for FCoE Sequence Offload */
- else if (tx_flags & IXGBE_TX_FLAGS_FSO)
- gso_segs = DIV_ROUND_UP(skb->len - hdr_len,
- skb_shinfo(skb)->gso_size);
-#endif /* IXGBE_FCOE */
- bytecount += (gso_segs - 1) * hdr_len;
+#endif
+ dma = dma_map_single(dev, skb->data, size, DMA_TO_DEVICE);
+ if (dma_mapping_error(dev, dma))
+ goto dma_error;
- /* multiply data chunks by size of headers */
- tx_ring->tx_buffer_info[i].bytecount = bytecount;
- tx_ring->tx_buffer_info[i].gso_segs = gso_segs;
- tx_ring->tx_buffer_info[i].skb = skb;
- tx_ring->tx_buffer_info[first].next_to_watch = i;
+ cmd_type = ixgbe_tx_cmd_type(tx_flags);
+ olinfo_status = ixgbe_tx_olinfo_status(tx_flags, paylen);
- return count;
+ tx_desc = IXGBE_TX_DESC_ADV(tx_ring, i);
-dma_error:
- e_dev_err("TX DMA map failed\n");
+ for (;;) {
+ while (size > IXGBE_MAX_DATA_PER_TXD) {
+ tx_desc->read.buffer_addr = cpu_to_le64(dma + offset);
+ tx_desc->read.cmd_type_len =
+ cmd_type | cpu_to_le32(IXGBE_MAX_DATA_PER_TXD);
+ tx_desc->read.olinfo_status = olinfo_status;
- /* clear timestamp and dma mappings for failed tx_buffer_info map */
- tx_buffer_info->dma = 0;
- tx_buffer_info->time_stamp = 0;
- tx_buffer_info->next_to_watch = 0;
- if (count)
- count--;
+ offset += IXGBE_MAX_DATA_PER_TXD;
+ size -= IXGBE_MAX_DATA_PER_TXD;
- /* clear timestamp and dma mappings for remaining portion of packet */
- while (count--) {
- if (i == 0)
- i += tx_ring->count;
- i--;
- tx_buffer_info = &tx_ring->tx_buffer_info[i];
- ixgbe_unmap_and_free_tx_resource(tx_ring, tx_buffer_info);
- }
+ tx_desc++;
+ i++;
+ if (i == tx_ring->count) {
+ tx_desc = IXGBE_TX_DESC_ADV(tx_ring, 0);
+ i = 0;
+ }
+ }
- return 0;
-}
+ tx_buffer_info = &tx_ring->tx_buffer_info[i];
+ tx_buffer_info->length = offset + size;
+ tx_buffer_info->tx_flags = tx_flags;
+ tx_buffer_info->dma = dma;
-static void ixgbe_tx_queue(struct ixgbe_ring *tx_ring,
- int tx_flags, int count, u32 paylen, u8 hdr_len)
-{
- union ixgbe_adv_tx_desc *tx_desc = NULL;
- struct ixgbe_tx_buffer *tx_buffer_info;
- u32 olinfo_status = 0, cmd_type_len = 0;
- unsigned int i;
- u32 txd_cmd = IXGBE_TXD_CMD_EOP | IXGBE_TXD_CMD_RS | IXGBE_TXD_CMD_IFCS;
+ tx_desc->read.buffer_addr = cpu_to_le64(dma + offset);
+ tx_desc->read.cmd_type_len = cmd_type | cpu_to_le32(size);
+ tx_desc->read.olinfo_status = olinfo_status;
- cmd_type_len |= IXGBE_ADVTXD_DTYP_DATA;
+ if (!data_len)
+ break;
- cmd_type_len |= IXGBE_ADVTXD_DCMD_IFCS | IXGBE_ADVTXD_DCMD_DEXT;
+ frag = &skb_shinfo(skb)->frags[f];
+#ifdef IXGBE_FCOE
+ size = min_t(unsigned int, data_len, frag->size);
+#else
+ size = frag->size;
+#endif
+ data_len -= size;
+ f++;
- if (tx_flags & IXGBE_TX_FLAGS_VLAN)
- cmd_type_len |= IXGBE_ADVTXD_DCMD_VLE;
+ offset = 0;
+ tx_flags |= IXGBE_TX_FLAGS_MAPPED_AS_PAGE;
- if (tx_flags & IXGBE_TX_FLAGS_TSO) {
- cmd_type_len |= IXGBE_ADVTXD_DCMD_TSE;
+ dma = dma_map_page(dev, frag->page, frag->page_offset,
+ size, DMA_TO_DEVICE);
+ if (dma_mapping_error(dev, dma))
+ goto dma_error;
- olinfo_status |= IXGBE_TXD_POPTS_TXSM <<
- IXGBE_ADVTXD_POPTS_SHIFT;
+ tx_desc++;
+ i++;
+ if (i == tx_ring->count) {
+ tx_desc = IXGBE_TX_DESC_ADV(tx_ring, 0);
+ i = 0;
+ }
+ }
- /* use index 1 context for tso */
- olinfo_status |= (1 << IXGBE_ADVTXD_IDX_SHIFT);
- if (tx_flags & IXGBE_TX_FLAGS_IPV4)
- olinfo_status |= IXGBE_TXD_POPTS_IXSM <<
- IXGBE_ADVTXD_POPTS_SHIFT;
+ tx_desc->read.cmd_type_len |= cpu_to_le32(IXGBE_TXD_CMD);
- } else if (tx_flags & IXGBE_TX_FLAGS_CSUM)
- olinfo_status |= IXGBE_TXD_POPTS_TXSM <<
- IXGBE_ADVTXD_POPTS_SHIFT;
+ i++;
+ if (i == tx_ring->count)
+ i = 0;
- if (tx_flags & IXGBE_TX_FLAGS_FCOE) {
- olinfo_status |= IXGBE_ADVTXD_CC;
- olinfo_status |= (1 << IXGBE_ADVTXD_IDX_SHIFT);
- if (tx_flags & IXGBE_TX_FLAGS_FSO)
- cmd_type_len |= IXGBE_ADVTXD_DCMD_TSE;
- }
+ tx_ring->next_to_use = i;
- olinfo_status |= ((paylen - hdr_len) << IXGBE_ADVTXD_PAYLEN_SHIFT);
+ if (tx_flags & IXGBE_TX_FLAGS_TSO)
+ gso_segs = skb_shinfo(skb)->gso_segs;
+#ifdef IXGBE_FCOE
+ /* adjust for FCoE Sequence Offload */
+ else if (tx_flags & IXGBE_TX_FLAGS_FSO)
+ gso_segs = DIV_ROUND_UP(skb->len - hdr_len,
+ skb_shinfo(skb)->gso_size);
+#endif /* IXGBE_FCOE */
+ else
+ gso_segs = 1;
- i = tx_ring->next_to_use;
- while (count--) {
- tx_buffer_info = &tx_ring->tx_buffer_info[i];
- tx_desc = IXGBE_TX_DESC_ADV(tx_ring, i);
- tx_desc->read.buffer_addr = cpu_to_le64(tx_buffer_info->dma);
- tx_desc->read.cmd_type_len =
- cpu_to_le32(cmd_type_len | tx_buffer_info->length);
- tx_desc->read.olinfo_status = cpu_to_le32(olinfo_status);
- i++;
- if (i == tx_ring->count)
- i = 0;
- }
+ /* multiply data chunks by size of headers */
+ tx_buffer_info->bytecount = paylen + (gso_segs * hdr_len);
+ tx_buffer_info->gso_segs = gso_segs;
+ tx_buffer_info->skb = skb;
- tx_desc->read.cmd_type_len |= cpu_to_le32(txd_cmd);
+ /* set the timestamp */
+ first->time_stamp = jiffies;
/*
* Force memory writes to complete before letting h/w
@@ -6596,8 +6610,30 @@ static void ixgbe_tx_queue(struct ixgbe_ring *tx_ring,
*/
wmb();
- tx_ring->next_to_use = i;
+ /* set next_to_watch value indicating a packet is present */
+ first->next_to_watch = tx_desc;
+
+ /* notify HW of packet */
writel(i, tx_ring->tail);
+
+ return;
+dma_error:
+ dev_err(dev, "TX DMA map failed\n");
+
+ /* clear dma mappings for failed tx_buffer_info map */
+ for (;;) {
+ tx_buffer_info = &tx_ring->tx_buffer_info[i];
+ ixgbe_unmap_tx_resource(tx_ring, tx_buffer_info);
+ if (tx_buffer_info == first)
+ break;
+ if (i == 0)
+ i = tx_ring->count;
+ i--;
+ }
+
+ dev_kfree_skb_any(skb);
+
+ tx_ring->next_to_use = i;
}
static void ixgbe_atr(struct ixgbe_ring *ring, struct sk_buff *skb,
@@ -6636,8 +6672,8 @@ static void ixgbe_atr(struct ixgbe_ring *ring, struct sk_buff *skb,
th = tcp_hdr(skb);
- /* skip this packet since the socket is closing */
- if (th->fin)
+ /* skip this packet since it is invalid or the socket is closing */
+ if (!th || th->fin)
return;
/* sample on all syn packets or once every atr sample count */
@@ -6662,7 +6698,7 @@ static void ixgbe_atr(struct ixgbe_ring *ring, struct sk_buff *skb,
* since src port and flex bytes occupy the same word XOR them together
* and write the value to source port portion of compressed dword
*/
- if (vlan_id)
+ if (tx_flags & (IXGBE_TX_FLAGS_SW_VLAN | IXGBE_TX_FLAGS_HW_VLAN))
common.port.src ^= th->dest ^ __constant_htons(ETH_P_8021Q);
else
common.port.src ^= th->dest ^ protocol;
@@ -6744,14 +6780,14 @@ netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *skb,
struct ixgbe_adapter *adapter,
struct ixgbe_ring *tx_ring)
{
+ struct ixgbe_tx_buffer *first;
int tso;
- u32 tx_flags = 0;
+ u32 tx_flags = 0;
#if PAGE_SIZE > IXGBE_MAX_DATA_PER_TXD
unsigned short f;
#endif
- u16 first;
u16 count = TXD_USE_COUNT(skb_headlen(skb));
- __be16 protocol;
+ __be16 protocol = skb->protocol;
u8 hdr_len = 0;
/*
@@ -6772,68 +6808,82 @@ netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *skb,
return NETDEV_TX_BUSY;
}
- protocol = vlan_get_protocol(skb);
-
+ /* if we have a HW VLAN tag being added default to the HW one */
if (vlan_tx_tag_present(skb)) {
- tx_flags |= vlan_tx_tag_get(skb);
- if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
- tx_flags &= ~IXGBE_TX_FLAGS_VLAN_PRIO_MASK;
- tx_flags |= tx_ring->dcb_tc << 13;
+ tx_flags |= vlan_tx_tag_get(skb) << IXGBE_TX_FLAGS_VLAN_SHIFT;
+ tx_flags |= IXGBE_TX_FLAGS_HW_VLAN;
+ /* else if it is a SW VLAN check the next protocol and store the tag */
+ } else if (protocol == __constant_htons(ETH_P_8021Q)) {
+ struct vlan_hdr *vhdr, _vhdr;
+ vhdr = skb_header_pointer(skb, ETH_HLEN, sizeof(_vhdr), &_vhdr);
+ if (!vhdr)
+ goto out_drop;
+
+ protocol = vhdr->h_vlan_encapsulated_proto;
+ tx_flags |= ntohs(vhdr->h_vlan_TCI) << IXGBE_TX_FLAGS_VLAN_SHIFT;
+ tx_flags |= IXGBE_TX_FLAGS_SW_VLAN;
+ }
+
+ if ((adapter->flags & IXGBE_FLAG_DCB_ENABLED) &&
+ skb->priority != TC_PRIO_CONTROL) {
+ tx_flags &= ~IXGBE_TX_FLAGS_VLAN_PRIO_MASK;
+ tx_flags |= tx_ring->dcb_tc <<
+ IXGBE_TX_FLAGS_VLAN_PRIO_SHIFT;
+ if (tx_flags & IXGBE_TX_FLAGS_SW_VLAN) {
+ struct vlan_ethhdr *vhdr;
+ if (skb_header_cloned(skb) &&
+ pskb_expand_head(skb, 0, 0, GFP_ATOMIC))
+ goto out_drop;
+ vhdr = (struct vlan_ethhdr *)skb->data;
+ vhdr->h_vlan_TCI = htons(tx_flags >>
+ IXGBE_TX_FLAGS_VLAN_SHIFT);
+ } else {
+ tx_flags |= IXGBE_TX_FLAGS_HW_VLAN;
}
- tx_flags <<= IXGBE_TX_FLAGS_VLAN_SHIFT;
- tx_flags |= IXGBE_TX_FLAGS_VLAN;
- } else if (adapter->flags & IXGBE_FLAG_DCB_ENABLED &&
- skb->priority != TC_PRIO_CONTROL) {
- tx_flags |= tx_ring->dcb_tc << 13;
- tx_flags <<= IXGBE_TX_FLAGS_VLAN_SHIFT;
- tx_flags |= IXGBE_TX_FLAGS_VLAN;
}
-#ifdef IXGBE_FCOE
- /* for FCoE with DCB, we force the priority to what
- * was specified by the switch */
- if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED &&
- (protocol == htons(ETH_P_FCOE)))
- tx_flags |= IXGBE_TX_FLAGS_FCOE;
-
-#endif
/* record the location of the first descriptor for this packet */
- first = tx_ring->next_to_use;
+ first = &tx_ring->tx_buffer_info[tx_ring->next_to_use];
- if (tx_flags & IXGBE_TX_FLAGS_FCOE) {
#ifdef IXGBE_FCOE
- /* setup tx offload for FCoE */
+ /* setup tx offload for FCoE */
+ if ((protocol == __constant_htons(ETH_P_FCOE)) &&
+ (adapter->flags & IXGBE_FLAG_FCOE_ENABLED)) {
tso = ixgbe_fso(tx_ring, skb, tx_flags, &hdr_len);
if (tso < 0)
goto out_drop;
else if (tso)
- tx_flags |= IXGBE_TX_FLAGS_FSO;
-#endif /* IXGBE_FCOE */
- } else {
- if (protocol == htons(ETH_P_IP))
- tx_flags |= IXGBE_TX_FLAGS_IPV4;
- tso = ixgbe_tso(tx_ring, skb, tx_flags, protocol, &hdr_len);
- if (tso < 0)
- goto out_drop;
- else if (tso)
- tx_flags |= IXGBE_TX_FLAGS_TSO;
- else if (ixgbe_tx_csum(tx_ring, skb, tx_flags, protocol))
- tx_flags |= IXGBE_TX_FLAGS_CSUM;
+ tx_flags |= IXGBE_TX_FLAGS_FSO |
+ IXGBE_TX_FLAGS_FCOE;
+ else
+ tx_flags |= IXGBE_TX_FLAGS_FCOE;
+
+ goto xmit_fcoe;
}
- count = ixgbe_tx_map(adapter, tx_ring, skb, tx_flags, first, hdr_len);
- if (count) {
- /* add the ATR filter if ATR is on */
- if (test_bit(__IXGBE_TX_FDIR_INIT_DONE, &tx_ring->state))
- ixgbe_atr(tx_ring, skb, tx_flags, protocol);
- ixgbe_tx_queue(tx_ring, tx_flags, count, skb->len, hdr_len);
- ixgbe_maybe_stop_tx(tx_ring, DESC_NEEDED);
+#endif /* IXGBE_FCOE */
+ /* setup IPv4/IPv6 offloads */
+ if (protocol == __constant_htons(ETH_P_IP))
+ tx_flags |= IXGBE_TX_FLAGS_IPV4;
- } else {
- tx_ring->tx_buffer_info[first].time_stamp = 0;
- tx_ring->next_to_use = first;
+ tso = ixgbe_tso(tx_ring, skb, tx_flags, protocol, &hdr_len);
+ if (tso < 0)
goto out_drop;
- }
+ else if (tso)
+ tx_flags |= IXGBE_TX_FLAGS_TSO;
+ else if (ixgbe_tx_csum(tx_ring, skb, tx_flags, protocol))
+ tx_flags |= IXGBE_TX_FLAGS_CSUM;
+
+ /* add the ATR filter if ATR is on */
+ if (test_bit(__IXGBE_TX_FDIR_INIT_DONE, &tx_ring->state))
+ ixgbe_atr(tx_ring, skb, tx_flags, protocol);
+
+#ifdef IXGBE_FCOE
+xmit_fcoe:
+#endif /* IXGBE_FCOE */
+ ixgbe_tx_map(tx_ring, skb, first, tx_flags, hdr_len);
+
+ ixgbe_maybe_stop_tx(tx_ring, DESC_NEEDED);
return NETDEV_TX_OK;