aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/ethernet/intel/i40e/i40e_txrx.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/ethernet/intel/i40e/i40e_txrx.c')
-rw-r--r--drivers/net/ethernet/intel/i40e/i40e_txrx.c190
1 files changed, 113 insertions, 77 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index e49f31dbd5d8..a51aa37b7b5a 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -39,6 +39,7 @@ static inline __le64 build_ctob(u32 td_cmd, u32 td_offset, unsigned int size,
}
#define I40E_TXD_CMD (I40E_TX_DESC_CMD_EOP | I40E_TX_DESC_CMD_RS)
+#define I40E_FD_CLEAN_DELAY 10
/**
* i40e_program_fdir_filter - Program a Flow Director filter
* @fdir_data: Packet data that will be filter parameters
@@ -50,7 +51,7 @@ int i40e_program_fdir_filter(struct i40e_fdir_filter *fdir_data, u8 *raw_packet,
struct i40e_pf *pf, bool add)
{
struct i40e_filter_program_desc *fdir_desc;
- struct i40e_tx_buffer *tx_buf;
+ struct i40e_tx_buffer *tx_buf, *first;
struct i40e_tx_desc *tx_desc;
struct i40e_ring *tx_ring;
unsigned int fpt, dcc;
@@ -58,6 +59,7 @@ int i40e_program_fdir_filter(struct i40e_fdir_filter *fdir_data, u8 *raw_packet,
struct device *dev;
dma_addr_t dma;
u32 td_cmd = 0;
+ u16 delay = 0;
u16 i;
/* find existing FDIR VSI */
@@ -71,6 +73,17 @@ int i40e_program_fdir_filter(struct i40e_fdir_filter *fdir_data, u8 *raw_packet,
tx_ring = vsi->tx_rings[0];
dev = tx_ring->dev;
+ /* we need two descriptors to add/del a filter and we can wait */
+ do {
+ if (I40E_DESC_UNUSED(tx_ring) > 1)
+ break;
+ msleep_interruptible(1);
+ delay++;
+ } while (delay < I40E_FD_CLEAN_DELAY);
+
+ if (!(I40E_DESC_UNUSED(tx_ring) > 1))
+ return -EAGAIN;
+
dma = dma_map_single(dev, raw_packet,
I40E_FDIR_MAX_RAW_PACKET_SIZE, DMA_TO_DEVICE);
if (dma_mapping_error(dev, dma))
@@ -79,8 +92,10 @@ int i40e_program_fdir_filter(struct i40e_fdir_filter *fdir_data, u8 *raw_packet,
/* grab the next descriptor */
i = tx_ring->next_to_use;
fdir_desc = I40E_TX_FDIRDESC(tx_ring, i);
+ first = &tx_ring->tx_bi[i];
+ memset(first, 0, sizeof(struct i40e_tx_buffer));
- tx_ring->next_to_use = (i + 1 < tx_ring->count) ? i + 1 : 0;
+ tx_ring->next_to_use = ((i + 1) < tx_ring->count) ? i + 1 : 0;
fpt = (fdir_data->q_index << I40E_TXD_FLTR_QW0_QINDEX_SHIFT) &
I40E_TXD_FLTR_QW0_QINDEX_MASK;
@@ -100,8 +115,6 @@ int i40e_program_fdir_filter(struct i40e_fdir_filter *fdir_data, u8 *raw_packet,
I40E_TXD_FLTR_QW0_DEST_VSI_SHIFT) &
I40E_TXD_FLTR_QW0_DEST_VSI_MASK;
- fdir_desc->qindex_flex_ptype_vsi = cpu_to_le32(fpt);
-
dcc = I40E_TX_DESC_DTYPE_FILTER_PROG;
if (add)
@@ -124,6 +137,8 @@ int i40e_program_fdir_filter(struct i40e_fdir_filter *fdir_data, u8 *raw_packet,
I40E_TXD_FLTR_QW1_CNTINDEX_MASK;
}
+ fdir_desc->qindex_flex_ptype_vsi = cpu_to_le32(fpt);
+ fdir_desc->rsvd = cpu_to_le32(0);
fdir_desc->dtype_cmd_cntindex = cpu_to_le32(dcc);
fdir_desc->fd_id = cpu_to_le32(fdir_data->fd_id);
@@ -132,7 +147,9 @@ int i40e_program_fdir_filter(struct i40e_fdir_filter *fdir_data, u8 *raw_packet,
tx_desc = I40E_TX_DESC(tx_ring, i);
tx_buf = &tx_ring->tx_bi[i];
- tx_ring->next_to_use = (i + 1 < tx_ring->count) ? i + 1 : 0;
+ tx_ring->next_to_use = ((i + 1) < tx_ring->count) ? i + 1 : 0;
+
+ memset(tx_buf, 0, sizeof(struct i40e_tx_buffer));
/* record length, and DMA address */
dma_unmap_len_set(tx_buf, len, I40E_FDIR_MAX_RAW_PACKET_SIZE);
@@ -141,6 +158,9 @@ int i40e_program_fdir_filter(struct i40e_fdir_filter *fdir_data, u8 *raw_packet,
tx_desc->buffer_addr = cpu_to_le64(dma);
td_cmd = I40E_TXD_CMD | I40E_TX_DESC_CMD_DUMMY;
+ tx_buf->tx_flags = I40E_TX_FLAGS_FD_SB;
+ tx_buf->raw_buf = (void *)raw_packet;
+
tx_desc->cmd_type_offset_bsz =
build_ctob(td_cmd, 0, I40E_FDIR_MAX_RAW_PACKET_SIZE, 0);
@@ -148,14 +168,12 @@ int i40e_program_fdir_filter(struct i40e_fdir_filter *fdir_data, u8 *raw_packet,
tx_buf->time_stamp = jiffies;
/* Force memory writes to complete before letting h/w
- * know there are new descriptors to fetch. (Only
- * applicable for weak-ordered memory model archs,
- * such as IA-64).
+ * know there are new descriptors to fetch.
*/
wmb();
/* Mark the data descriptor to be watched */
- tx_buf->next_to_watch = tx_desc;
+ first->next_to_watch = tx_desc;
writel(tx_ring->next_to_use, tx_ring->tail);
return 0;
@@ -170,24 +188,27 @@ dma_fail:
* i40e_add_del_fdir_udpv4 - Add/Remove UDPv4 filters
* @vsi: pointer to the targeted VSI
* @fd_data: the flow director data required for the FDir descriptor
- * @raw_packet: the pre-allocated packet buffer for FDir
* @add: true adds a filter, false removes it
*
* Returns 0 if the filters were successfully added or removed
**/
static int i40e_add_del_fdir_udpv4(struct i40e_vsi *vsi,
struct i40e_fdir_filter *fd_data,
- u8 *raw_packet, bool add)
+ bool add)
{
struct i40e_pf *pf = vsi->back;
struct udphdr *udp;
struct iphdr *ip;
bool err = false;
+ u8 *raw_packet;
int ret;
static char packet[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x08, 0,
0x45, 0, 0, 0x1c, 0, 0, 0x40, 0, 0x40, 0x11, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+ raw_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE, GFP_KERNEL);
+ if (!raw_packet)
+ return -ENOMEM;
memcpy(raw_packet, packet, I40E_UDPIP_DUMMY_PACKET_LEN);
ip = (struct iphdr *)(raw_packet + IP_HEADER_OFFSET);
@@ -220,19 +241,19 @@ static int i40e_add_del_fdir_udpv4(struct i40e_vsi *vsi,
* i40e_add_del_fdir_tcpv4 - Add/Remove TCPv4 filters
* @vsi: pointer to the targeted VSI
* @fd_data: the flow director data required for the FDir descriptor
- * @raw_packet: the pre-allocated packet buffer for FDir
* @add: true adds a filter, false removes it
*
* Returns 0 if the filters were successfully added or removed
**/
static int i40e_add_del_fdir_tcpv4(struct i40e_vsi *vsi,
struct i40e_fdir_filter *fd_data,
- u8 *raw_packet, bool add)
+ bool add)
{
struct i40e_pf *pf = vsi->back;
struct tcphdr *tcp;
struct iphdr *ip;
bool err = false;
+ u8 *raw_packet;
int ret;
/* Dummy packet */
static char packet[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x08, 0,
@@ -240,6 +261,9 @@ static int i40e_add_del_fdir_tcpv4(struct i40e_vsi *vsi,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x80, 0x11,
0x0, 0x72, 0, 0, 0, 0};
+ raw_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE, GFP_KERNEL);
+ if (!raw_packet)
+ return -ENOMEM;
memcpy(raw_packet, packet, I40E_TCPIP_DUMMY_PACKET_LEN);
ip = (struct iphdr *)(raw_packet + IP_HEADER_OFFSET);
@@ -271,19 +295,6 @@ static int i40e_add_del_fdir_tcpv4(struct i40e_vsi *vsi,
fd_data->pctype, ret);
}
- fd_data->pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
-
- ret = i40e_program_fdir_filter(fd_data, raw_packet, pf, add);
- if (ret) {
- dev_info(&pf->pdev->dev,
- "Filter command send failed for PCTYPE %d (ret = %d)\n",
- fd_data->pctype, ret);
- err = true;
- } else {
- dev_info(&pf->pdev->dev, "Filter OK for PCTYPE %d (ret = %d)\n",
- fd_data->pctype, ret);
- }
-
return err ? -EOPNOTSUPP : 0;
}
@@ -292,14 +303,13 @@ static int i40e_add_del_fdir_tcpv4(struct i40e_vsi *vsi,
* a specific flow spec
* @vsi: pointer to the targeted VSI
* @fd_data: the flow director data required for the FDir descriptor
- * @raw_packet: the pre-allocated packet buffer for FDir
* @add: true adds a filter, false removes it
*
* Always returns -EOPNOTSUPP
**/
static int i40e_add_del_fdir_sctpv4(struct i40e_vsi *vsi,
struct i40e_fdir_filter *fd_data,
- u8 *raw_packet, bool add)
+ bool add)
{
return -EOPNOTSUPP;
}
@@ -310,33 +320,36 @@ static int i40e_add_del_fdir_sctpv4(struct i40e_vsi *vsi,
* a specific flow spec
* @vsi: pointer to the targeted VSI
* @fd_data: the flow director data required for the FDir descriptor
- * @raw_packet: the pre-allocated packet buffer for FDir
* @add: true adds a filter, false removes it
*
* Returns 0 if the filters were successfully added or removed
**/
static int i40e_add_del_fdir_ipv4(struct i40e_vsi *vsi,
struct i40e_fdir_filter *fd_data,
- u8 *raw_packet, bool add)
+ bool add)
{
struct i40e_pf *pf = vsi->back;
struct iphdr *ip;
bool err = false;
+ u8 *raw_packet;
int ret;
int i;
static char packet[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x08, 0,
0x45, 0, 0, 0x14, 0, 0, 0x40, 0, 0x40, 0x10, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0};
- memcpy(raw_packet, packet, I40E_IP_DUMMY_PACKET_LEN);
- ip = (struct iphdr *)(raw_packet + IP_HEADER_OFFSET);
-
- ip->saddr = fd_data->src_ip[0];
- ip->daddr = fd_data->dst_ip[0];
- ip->protocol = 0;
-
for (i = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;
i <= I40E_FILTER_PCTYPE_FRAG_IPV4; i++) {
+ raw_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE, GFP_KERNEL);
+ if (!raw_packet)
+ return -ENOMEM;
+ memcpy(raw_packet, packet, I40E_IP_DUMMY_PACKET_LEN);
+ ip = (struct iphdr *)(raw_packet + IP_HEADER_OFFSET);
+
+ ip->saddr = fd_data->src_ip[0];
+ ip->daddr = fd_data->dst_ip[0];
+ ip->protocol = 0;
+
fd_data->pctype = i;
ret = i40e_program_fdir_filter(fd_data, raw_packet, pf, add);
@@ -366,50 +379,34 @@ int i40e_add_del_fdir(struct i40e_vsi *vsi,
struct i40e_fdir_filter *input, bool add)
{
struct i40e_pf *pf = vsi->back;
- u8 *raw_packet;
int ret;
- /* Populate the Flow Director that we have at the moment
- * and allocate the raw packet buffer for the calling functions
- */
- raw_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE, GFP_KERNEL);
- if (!raw_packet)
- return -ENOMEM;
-
switch (input->flow_type & ~FLOW_EXT) {
case TCP_V4_FLOW:
- ret = i40e_add_del_fdir_tcpv4(vsi, input, raw_packet,
- add);
+ ret = i40e_add_del_fdir_tcpv4(vsi, input, add);
break;
case UDP_V4_FLOW:
- ret = i40e_add_del_fdir_udpv4(vsi, input, raw_packet,
- add);
+ ret = i40e_add_del_fdir_udpv4(vsi, input, add);
break;
case SCTP_V4_FLOW:
- ret = i40e_add_del_fdir_sctpv4(vsi, input, raw_packet,
- add);
+ ret = i40e_add_del_fdir_sctpv4(vsi, input, add);
break;
case IPV4_FLOW:
- ret = i40e_add_del_fdir_ipv4(vsi, input, raw_packet,
- add);
+ ret = i40e_add_del_fdir_ipv4(vsi, input, add);
break;
case IP_USER_FLOW:
switch (input->ip4_proto) {
case IPPROTO_TCP:
- ret = i40e_add_del_fdir_tcpv4(vsi, input,
- raw_packet, add);
+ ret = i40e_add_del_fdir_tcpv4(vsi, input, add);
break;
case IPPROTO_UDP:
- ret = i40e_add_del_fdir_udpv4(vsi, input,
- raw_packet, add);
+ ret = i40e_add_del_fdir_udpv4(vsi, input, add);
break;
case IPPROTO_SCTP:
- ret = i40e_add_del_fdir_sctpv4(vsi, input,
- raw_packet, add);
+ ret = i40e_add_del_fdir_sctpv4(vsi, input, add);
break;
default:
- ret = i40e_add_del_fdir_ipv4(vsi, input,
- raw_packet, add);
+ ret = i40e_add_del_fdir_ipv4(vsi, input, add);
break;
}
break;
@@ -419,7 +416,7 @@ int i40e_add_del_fdir(struct i40e_vsi *vsi,
ret = -EINVAL;
}
- kfree(raw_packet);
+ /* The buffer allocated here is freed by the i40e_clean_tx_ring() */
return ret;
}
@@ -450,22 +447,24 @@ static void i40e_fd_handle_status(struct i40e_ring *rx_ring,
rx_desc->wb.qword0.hi_dword.fd_id);
/* filter programming failed most likely due to table full */
- fcnt_prog = i40e_get_current_fd_count(pf);
- fcnt_avail = i40e_get_fd_cnt_all(pf);
+ fcnt_prog = i40e_get_cur_guaranteed_fd_count(pf);
+ fcnt_avail = pf->fdir_pf_filter_count;
/* If ATR is running fcnt_prog can quickly change,
* if we are very close to full, it makes sense to disable
* FD ATR/SB and then re-enable it when there is room.
*/
if (fcnt_prog >= (fcnt_avail - I40E_FDIR_BUFFER_FULL_MARGIN)) {
/* Turn off ATR first */
- if (pf->flags & I40E_FLAG_FD_ATR_ENABLED) {
- pf->flags &= ~I40E_FLAG_FD_ATR_ENABLED;
+ if ((pf->flags & I40E_FLAG_FD_ATR_ENABLED) &&
+ !(pf->auto_disable_flags &
+ I40E_FLAG_FD_ATR_ENABLED)) {
dev_warn(&pdev->dev, "FD filter space full, ATR for further flows will be turned off\n");
pf->auto_disable_flags |=
I40E_FLAG_FD_ATR_ENABLED;
pf->flags |= I40E_FLAG_FDIR_REQUIRES_REINIT;
- } else if (pf->flags & I40E_FLAG_FD_SB_ENABLED) {
- pf->flags &= ~I40E_FLAG_FD_SB_ENABLED;
+ } else if ((pf->flags & I40E_FLAG_FD_SB_ENABLED) &&
+ !(pf->auto_disable_flags &
+ I40E_FLAG_FD_SB_ENABLED)) {
dev_warn(&pdev->dev, "FD filter space full, new ntuple rules will not be added\n");
pf->auto_disable_flags |=
I40E_FLAG_FD_SB_ENABLED;
@@ -491,7 +490,11 @@ static void i40e_unmap_and_free_tx_resource(struct i40e_ring *ring,
struct i40e_tx_buffer *tx_buffer)
{
if (tx_buffer->skb) {
- dev_kfree_skb_any(tx_buffer->skb);
+ if (tx_buffer->tx_flags & I40E_TX_FLAGS_FD_SB)
+ kfree(tx_buffer->raw_buf);
+ else
+ dev_kfree_skb_any(tx_buffer->skb);
+
if (dma_unmap_len(tx_buffer, len))
dma_unmap_single(ring->dev,
dma_unmap_addr(tx_buffer, dma),
@@ -893,6 +896,11 @@ static void i40e_clean_programming_status(struct i40e_ring *rx_ring,
if (id == I40E_RX_PROG_STATUS_DESC_FD_FILTER_STATUS)
i40e_fd_handle_status(rx_ring, rx_desc, id);
+#ifdef I40E_FCOE
+ else if ((id == I40E_RX_PROG_STATUS_DESC_FCOE_CTXT_PROG_STATUS) ||
+ (id == I40E_RX_PROG_STATUS_DESC_FCOE_CTXT_INVL_STATUS))
+ i40e_fcoe_handle_status(rx_ring, rx_desc, id);
+#endif
}
/**
@@ -1234,8 +1242,6 @@ static inline void i40e_rx_checksum(struct i40e_vsi *vsi,
/* likely incorrect csum if alternate IP extension headers found */
if (ipv6 &&
- decoded.inner_prot == I40E_RX_PTYPE_INNER_PROT_TCP &&
- rx_error & (1 << I40E_RX_DESC_ERROR_L4E_SHIFT) &&
rx_status & (1 << I40E_RX_DESC_STATUS_IPV6EXADD_SHIFT))
/* don't increment checksum err here, non-fatal err */
return;
@@ -1488,6 +1494,12 @@ static int i40e_clean_rx_irq(struct i40e_ring *rx_ring, int budget)
vlan_tag = rx_status & (1 << I40E_RX_DESC_STATUS_L2TAG1P_SHIFT)
? le16_to_cpu(rx_desc->wb.qword0.lo_dword.l2tag1)
: 0;
+#ifdef I40E_FCOE
+ if (!i40e_fcoe_handle_offload(rx_ring, rx_desc, skb)) {
+ dev_kfree_skb_any(skb);
+ goto next_desc;
+ }
+#endif
i40e_receive_skb(rx_ring, skb, vlan_tag);
rx_ring->netdev->last_rx = jiffies;
@@ -1701,7 +1713,9 @@ static void i40e_atr(struct i40e_ring *tx_ring, struct sk_buff *skb,
I40E_TXD_FLTR_QW1_CNTINDEX_MASK;
fdir_desc->qindex_flex_ptype_vsi = cpu_to_le32(flex_ptype);
+ fdir_desc->rsvd = cpu_to_le32(0);
fdir_desc->dtype_cmd_cntindex = cpu_to_le32(dtype_cmd);
+ fdir_desc->fd_id = cpu_to_le32(0);
}
/**
@@ -1716,9 +1730,15 @@ static void i40e_atr(struct i40e_ring *tx_ring, struct sk_buff *skb,
* Returns error code indicate the frame should be dropped upon error and the
* otherwise returns 0 to indicate the flags has been set properly.
**/
+#ifdef I40E_FCOE
+int i40e_tx_prepare_vlan_flags(struct sk_buff *skb,
+ struct i40e_ring *tx_ring,
+ u32 *flags)
+#else
static int i40e_tx_prepare_vlan_flags(struct sk_buff *skb,
struct i40e_ring *tx_ring,
u32 *flags)
+#endif
{
__be16 protocol = skb->protocol;
u32 tx_flags = 0;
@@ -1740,9 +1760,8 @@ static int i40e_tx_prepare_vlan_flags(struct sk_buff *skb,
}
/* Insert 802.1p priority into VLAN header */
- if ((tx_ring->vsi->back->flags & I40E_FLAG_DCB_ENABLED) &&
- ((tx_flags & (I40E_TX_FLAGS_HW_VLAN | I40E_TX_FLAGS_SW_VLAN)) ||
- (skb->priority != TC_PRIO_CONTROL))) {
+ if ((tx_flags & (I40E_TX_FLAGS_HW_VLAN | I40E_TX_FLAGS_SW_VLAN)) ||
+ (skb->priority != TC_PRIO_CONTROL)) {
tx_flags &= ~I40E_TX_FLAGS_VLAN_PRIO_MASK;
tx_flags |= (skb->priority & 0x7) <<
I40E_TX_FLAGS_VLAN_PRIO_SHIFT;
@@ -1850,7 +1869,8 @@ static int i40e_tsyn(struct i40e_ring *tx_ring, struct sk_buff *skb,
* we are not already transmitting a packet to be timestamped
*/
pf = i40e_netdev_to_pf(tx_ring->netdev);
- if (pf->ptp_tx && !pf->ptp_tx_skb) {
+ if (pf->ptp_tx &&
+ !test_and_set_bit_lock(__I40E_PTP_TX_IN_PROGRESS, &pf->state)) {
skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
pf->ptp_tx_skb = skb_get(skb);
} else {
@@ -2000,6 +2020,7 @@ static void i40e_create_tx_ctx(struct i40e_ring *tx_ring,
/* cpu_to_le32 and assign to struct fields */
context_desc->tunneling_params = cpu_to_le32(cd_tunneling);
context_desc->l2tag2 = cpu_to_le16(cd_l2tag2);
+ context_desc->rsvd = cpu_to_le16(0);
context_desc->type_cmd_tso_mss = cpu_to_le64(cd_type_cmd_tso_mss);
}
@@ -2013,9 +2034,15 @@ static void i40e_create_tx_ctx(struct i40e_ring *tx_ring,
* @td_cmd: the command field in the descriptor
* @td_offset: offset for checksum or crc
**/
+#ifdef I40E_FCOE
+void i40e_tx_map(struct i40e_ring *tx_ring, struct sk_buff *skb,
+ struct i40e_tx_buffer *first, u32 tx_flags,
+ const u8 hdr_len, u32 td_cmd, u32 td_offset)
+#else
static void i40e_tx_map(struct i40e_ring *tx_ring, struct sk_buff *skb,
struct i40e_tx_buffer *first, u32 tx_flags,
const u8 hdr_len, u32 td_cmd, u32 td_offset)
+#endif
{
unsigned int data_len = skb->data_len;
unsigned int size = skb_headlen(skb);
@@ -2192,7 +2219,11 @@ static inline int __i40e_maybe_stop_tx(struct i40e_ring *tx_ring, int size)
*
* Returns 0 if stop is not needed
**/
+#ifdef I40E_FCOE
+int i40e_maybe_stop_tx(struct i40e_ring *tx_ring, int size)
+#else
static int i40e_maybe_stop_tx(struct i40e_ring *tx_ring, int size)
+#endif
{
if (likely(I40E_DESC_UNUSED(tx_ring) >= size))
return 0;
@@ -2208,8 +2239,13 @@ static int i40e_maybe_stop_tx(struct i40e_ring *tx_ring, int size)
* there is not enough descriptors available in this ring since we need at least
* one descriptor.
**/
+#ifdef I40E_FCOE
+int i40e_xmit_descriptor_count(struct sk_buff *skb,
+ struct i40e_ring *tx_ring)
+#else
static int i40e_xmit_descriptor_count(struct sk_buff *skb,
struct i40e_ring *tx_ring)
+#endif
{
unsigned int f;
int count = 0;
@@ -2278,13 +2314,13 @@ static netdev_tx_t i40e_xmit_frame_ring(struct sk_buff *skb,
else if (tso)
tx_flags |= I40E_TX_FLAGS_TSO;
- skb_tx_timestamp(skb);
-
tsyn = i40e_tsyn(tx_ring, skb, tx_flags, &cd_type_cmd_tso_mss);
if (tsyn)
tx_flags |= I40E_TX_FLAGS_TSYN;
+ skb_tx_timestamp(skb);
+
/* always enable CRC insertion offload */
td_cmd |= I40E_TX_DESC_CMD_ICRC;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.