@@ -972,27 +972,33 @@ bool iavf_alloc_rx_buffers(struct iavf_ring *rx_ring, u16 cleaned_count)
return true;
}
+/* iavf_rx_csum_decoded
+ *
+ * Checksum offload bits decoded from the receive descriptor.
+ */
+struct iavf_rx_csum_decoded {
+ u8 l3l4p : 1;
+ u8 ipe : 1;
+ u8 eipe : 1;
+ u8 eudpe : 1;
+ u8 ipv6exadd : 1;
+ u8 l4e : 1;
+ u8 pprs : 1;
+ u8 nat : 1;
+};
+
/**
- * iavf_rx_checksum - Indicate in skb if hw indicated a good cksum
+ * iavf_rx_csum - Indicate in skb if hw indicated a good checksum
* @vsi: the VSI we care about
* @skb: skb currently being received and modified
- * @rx_desc: the receive descriptor
+ * @ptype: decoded ptype information
+ * @csum_bits: decoded Rx descriptor information
**/
-static void iavf_rx_checksum(struct iavf_vsi *vsi,
- struct sk_buff *skb,
- union iavf_rx_desc *rx_desc)
+static void iavf_rx_csum(struct iavf_vsi *vsi, struct sk_buff *skb,
+ struct iavf_rx_ptype_decoded *ptype,
+ struct iavf_rx_csum_decoded *csum_bits)
{
- struct iavf_rx_ptype_decoded decoded;
- u32 rx_error, rx_status;
bool ipv4, ipv6;
- u8 ptype;
- u64 qword;
-
- qword = le64_to_cpu(rx_desc->wb.qword1.status_error_len);
- ptype = FIELD_GET(IAVF_RXD_QW1_PTYPE_MASK, qword);
- rx_error = FIELD_GET(IAVF_RXD_QW1_ERROR_MASK, qword);
- rx_status = FIELD_GET(IAVF_RXD_QW1_STATUS_MASK, qword);
- decoded = decode_rx_desc_ptype(ptype);
skb->ip_summed = CHECKSUM_NONE;
@@ -1003,42 +1009,45 @@ static void iavf_rx_checksum(struct iavf_vsi *vsi,
return;
/* did the hardware decode the packet and checksum? */
- if (!(rx_status & BIT(IAVF_RX_DESC_STATUS_L3L4P_SHIFT)))
+ if (!csum_bits->l3l4p)
return;
/* both known and outer_ip must be set for the below code to work */
- if (!(decoded.known && decoded.outer_ip))
+ if (!(ptype->known && ptype->outer_ip))
return;
- ipv4 = (decoded.outer_ip == IAVF_RX_PTYPE_OUTER_IP) &&
- (decoded.outer_ip_ver == IAVF_RX_PTYPE_OUTER_IPV4);
- ipv6 = (decoded.outer_ip == IAVF_RX_PTYPE_OUTER_IP) &&
- (decoded.outer_ip_ver == IAVF_RX_PTYPE_OUTER_IPV6);
+ ipv4 = (ptype->outer_ip == IAVF_RX_PTYPE_OUTER_IP) &&
+ (ptype->outer_ip_ver == IAVF_RX_PTYPE_OUTER_IPV4);
+ ipv6 = (ptype->outer_ip == IAVF_RX_PTYPE_OUTER_IP) &&
+ (ptype->outer_ip_ver == IAVF_RX_PTYPE_OUTER_IPV6);
- if (ipv4 &&
- (rx_error & (BIT(IAVF_RX_DESC_ERROR_IPE_SHIFT) |
- BIT(IAVF_RX_DESC_ERROR_EIPE_SHIFT))))
+ if (ipv4 && (csum_bits->ipe || csum_bits->eipe))
goto checksum_fail;
/* likely incorrect csum if alternate IP extension headers found */
- if (ipv6 &&
- rx_status & BIT(IAVF_RX_DESC_STATUS_IPV6EXADD_SHIFT))
- /* don't increment checksum err here, non-fatal err */
+ if (ipv6 && csum_bits->ipv6exadd)
return;
/* there was some L4 error, count error and punt packet to the stack */
- if (rx_error & BIT(IAVF_RX_DESC_ERROR_L4E_SHIFT))
+ if (csum_bits->l4e)
goto checksum_fail;
/* handle packets that were not able to be checksummed due
* to arrival speed, in this case the stack can compute
* the csum.
*/
- if (rx_error & BIT(IAVF_RX_DESC_ERROR_PPRS_SHIFT))
+ if (csum_bits->pprs)
return;
+ /* If there is an outer header present that might contain a checksum
+ * we need to bump the checksum level by 1 to reflect the fact that
+ * we are indicating we validated the inner checksum.
+ */
+ if (ptype->tunnel_type >= IAVF_RX_PTYPE_TUNNEL_IP_GRENAT)
+ skb->csum_level = 1;
+
/* Only report checksum unnecessary for TCP, UDP, or SCTP */
- switch (decoded.inner_prot) {
+ switch (ptype->inner_prot) {
case IAVF_RX_PTYPE_INNER_PROT_TCP:
case IAVF_RX_PTYPE_INNER_PROT_UDP:
case IAVF_RX_PTYPE_INNER_PROT_SCTP:
@@ -1054,13 +1063,89 @@ static void iavf_rx_checksum(struct iavf_vsi *vsi,
vsi->back->hw_csum_rx_error++;
}
+/**
+ * iavf_legacy_rx_csum - Indicate in skb if hw indicated a good cksum
+ * @vsi: the VSI we care about
+ * @skb: skb currently being received and modified
+ * @rx_desc: the receive descriptor
+ *
+ * This function only operates on the VIRTCHNL_RXDID_1_32B_BASE legacy 32byte
+ * descriptor writeback format.
+ **/
+static void iavf_legacy_rx_csum(struct iavf_vsi *vsi,
+ struct sk_buff *skb,
+ union iavf_rx_desc *rx_desc)
+{
+ struct iavf_rx_csum_decoded csum_bits;
+ struct iavf_rx_ptype_decoded decoded;
+ u32 rx_error;
+ u64 qword;
+ u16 ptype;
+
+ qword = le64_to_cpu(rx_desc->wb.qword1.status_error_len);
+ ptype = FIELD_GET(IAVF_RXD_QW1_PTYPE_MASK, qword);
+ rx_error = FIELD_GET(IAVF_RXD_QW1_ERROR_MASK, qword);
+ decoded = decode_rx_desc_ptype(ptype);
+
+ csum_bits.ipe = FIELD_GET(IAVF_RX_DESC_ERROR_IPE_MASK, rx_error);
+ csum_bits.eipe = FIELD_GET(IAVF_RX_DESC_ERROR_EIPE_MASK, rx_error);
+ csum_bits.l4e = FIELD_GET(IAVF_RX_DESC_ERROR_L4E_MASK, rx_error);
+ csum_bits.pprs = FIELD_GET(IAVF_RX_DESC_ERROR_PPRS_MASK, rx_error);
+ csum_bits.l3l4p = FIELD_GET(IAVF_RX_DESC_STATUS_L3L4P_MASK, rx_error);
+ csum_bits.ipv6exadd = FIELD_GET(IAVF_RX_DESC_STATUS_IPV6EXADD_MASK,
+ rx_error);
+ csum_bits.nat = 0;
+ csum_bits.eudpe = 0;
+
+ iavf_rx_csum(vsi, skb, &decoded, &csum_bits);
+}
+
+/**
+ * iavf_flex_rx_csum - Indicate in skb if hw indicated a good cksum
+ * @vsi: the VSI we care about
+ * @skb: skb currently being received and modified
+ * @rx_desc: the receive descriptor
+ *
+ * This function only operates on the VIRTCHNL_RXDID_2_FLEX_SQ_NIC flexible
+ * descriptor writeback format.
+ **/
+static void iavf_flex_rx_csum(struct iavf_vsi *vsi, struct sk_buff *skb,
+ union iavf_rx_desc *rx_desc)
+{
+ struct iavf_rx_csum_decoded csum_bits;
+ struct iavf_rx_ptype_decoded decoded;
+ u16 rx_status0, ptype;
+
+ rx_status0 = le16_to_cpu(rx_desc->flex_wb.status_error0);
+ ptype = FIELD_GET(IAVF_RX_FLEX_DESC_PTYPE_M,
+ le16_to_cpu(rx_desc->flex_wb.ptype_flexi_flags0));
+ decoded = decode_rx_desc_ptype(ptype);
+
+ csum_bits.ipe = FIELD_GET(IAVF_RX_FLEX_DESC_STATUS0_XSUM_IPE_M,
+ rx_status0);
+ csum_bits.eipe = FIELD_GET(IAVF_RX_FLEX_DESC_STATUS0_XSUM_EIPE_M,
+ rx_status0);
+ csum_bits.l4e = FIELD_GET(IAVF_RX_FLEX_DESC_STATUS0_XSUM_L4E_M,
+ rx_status0);
+ csum_bits.eudpe = FIELD_GET(IAVF_RX_FLEX_DESC_STATUS0_XSUM_EUDPE_M,
+ rx_status0);
+ csum_bits.l3l4p = FIELD_GET(IAVF_RX_FLEX_DESC_STATUS0_L3L4P_M,
+ rx_status0);
+ csum_bits.ipv6exadd = FIELD_GET(IAVF_RX_FLEX_DESC_STATUS0_IPV6EXADD_M,
+ rx_status0);
+ csum_bits.nat = FIELD_GET(IAVF_RX_FLEX_DESC_STATUS1_NAT_M, rx_status0);
+ csum_bits.pprs = 0;
+
+ iavf_rx_csum(vsi, skb, &decoded, &csum_bits);
+}
+
/**
* iavf_ptype_to_htype - get a hash type
* @ptype: the ptype value from the descriptor
*
* Returns a hash type to be used by skb_set_hash
**/
-static int iavf_ptype_to_htype(u8 ptype)
+static int iavf_ptype_to_htype(u16 ptype)
{
struct iavf_rx_ptype_decoded decoded = decode_rx_desc_ptype(ptype);
@@ -1078,21 +1163,21 @@ static int iavf_ptype_to_htype(u8 ptype)
}
/**
- * iavf_rx_hash - set the hash value in the skb
+ * iavf_legacy_rx_hash - set the hash value in the skb
* @ring: descriptor ring
* @rx_desc: specific descriptor
* @skb: skb currently being received and modified
* @rx_ptype: Rx packet type
+ *
+ * This function only operates on the VIRTCHNL_RXDID_1_32B_BASE legacy 32byte
+ * descriptor writeback format.
**/
-static void iavf_rx_hash(struct iavf_ring *ring,
- union iavf_rx_desc *rx_desc,
- struct sk_buff *skb,
- u8 rx_ptype)
+static void iavf_legacy_rx_hash(struct iavf_ring *ring,
+ union iavf_rx_desc *rx_desc,
+ struct sk_buff *skb, u8 rx_ptype)
{
+ const __le64 rss_mask = cpu_to_le64(IAVF_RX_DESC_STATUS_FLTSTAT_MASK);
u32 hash;
- const __le64 rss_mask =
- cpu_to_le64((u64)IAVF_RX_DESC_FLTSTAT_RSS_HASH <<
- IAVF_RX_DESC_STATUS_FLTSTAT_SHIFT);
if (!(ring->netdev->features & NETIF_F_RXHASH))
return;
@@ -1103,6 +1188,33 @@ static void iavf_rx_hash(struct iavf_ring *ring,
}
}
+/**
+ * iavf_flex_rx_hash - set the hash value in the skb
+ * @ring: descriptor ring
+ * @rx_desc: specific descriptor
+ * @skb: skb currently being received and modified
+ * @rx_ptype: Rx packet type
+ *
+ * This function only operates on the VIRTCHNL_RXDID_2_FLEX_SQ_NIC flexible
+ * descriptor writeback format.
+ **/
+static void iavf_flex_rx_hash(struct iavf_ring *ring,
+ union iavf_rx_desc *rx_desc,
+ struct sk_buff *skb, u16 rx_ptype)
+{
+ __le16 status0;
+
+ if (!(ring->netdev->features & NETIF_F_RXHASH))
+ return;
+
+ status0 = rx_desc->flex_wb.status_error0;
+ if (status0 & cpu_to_le16(IAVF_RX_FLEX_DESC_STATUS0_RSS_VALID_M)) {
+ u32 hash = le32_to_cpu(rx_desc->flex_wb.rss_hash);
+
+ skb_set_hash(skb, hash, iavf_ptype_to_htype(rx_ptype));
+ }
+}
+
/**
* iavf_process_skb_fields - Populate skb header fields from Rx descriptor
* @rx_ring: rx descriptor ring packet is being transacted on
@@ -1114,14 +1226,19 @@ static void iavf_rx_hash(struct iavf_ring *ring,
* order to populate the hash, checksum, VLAN, protocol, and
* other fields within the skb.
**/
-static void
-iavf_process_skb_fields(struct iavf_ring *rx_ring,
- union iavf_rx_desc *rx_desc, struct sk_buff *skb,
- u8 rx_ptype)
+static void iavf_process_skb_fields(struct iavf_ring *rx_ring,
+ union iavf_rx_desc *rx_desc,
+ struct sk_buff *skb, u16 rx_ptype)
{
- iavf_rx_hash(rx_ring, rx_desc, skb, rx_ptype);
+ if (rx_ring->rxdid == VIRTCHNL_RXDID_1_32B_BASE) {
+ iavf_legacy_rx_hash(rx_ring, rx_desc, skb, rx_ptype);
+
+ iavf_legacy_rx_csum(rx_ring->vsi, skb, rx_desc);
+ } else {
+ iavf_flex_rx_hash(rx_ring, rx_desc, skb, rx_ptype);
- iavf_rx_checksum(rx_ring->vsi, skb, rx_desc);
+ iavf_flex_rx_csum(rx_ring->vsi, skb, rx_desc);
+ }
skb_record_rx_queue(skb, rx_ring->queue_index);
@@ -1448,7 +1565,7 @@ static void iavf_put_rx_buffer(struct iavf_ring *rx_ring,
/**
* iavf_is_non_eop - process handling of non-EOP buffers
* @rx_ring: Rx ring being processed
- * @rx_desc: Rx descriptor for current buffer
+ * @fields: Rx descriptor extracted fields
* @skb: Current socket buffer containing buffer in progress
*
* This function updates next to clean. If the buffer is an EOP buffer
@@ -1457,7 +1574,7 @@ static void iavf_put_rx_buffer(struct iavf_ring *rx_ring,
* that this is in fact a non-EOP buffer.
**/
static bool iavf_is_non_eop(struct iavf_ring *rx_ring,
- union iavf_rx_desc *rx_desc,
+ struct iavf_rx_extracted *fields,
struct sk_buff *skb)
{
u32 ntc = rx_ring->next_to_clean + 1;
@@ -1469,8 +1586,7 @@ static bool iavf_is_non_eop(struct iavf_ring *rx_ring,
prefetch(IAVF_RX_DESC(rx_ring, ntc));
/* if we are the last buffer then there is nothing else to do */
-#define IAVF_RXD_EOF BIT(IAVF_RX_DESC_STATUS_EOF_SHIFT)
- if (likely(iavf_test_staterr(rx_desc, IAVF_RXD_EOF)))
+ if (likely(fields->end_of_packet))
return false;
rx_ring->rx_stats.non_eop_descs++;
@@ -1478,6 +1594,92 @@ static bool iavf_is_non_eop(struct iavf_ring *rx_ring,
return true;
}
+/**
+ * iavf_extract_legacy_rx_fields - Extract fields from the Rx descriptor
+ * @rx_ring: rx descriptor ring
+ * @rx_desc: the descriptor to process
+ * @fields: storage for extracted values
+ *
+ * Decode the Rx descriptor and extract relevant information including the
+ * size, VLAN tag, Rx packet type, end of packet field and RXE field value.
+ *
+ * This function only operates on the VIRTCHNL_RXDID_1_32B_BASE legacy 32byte
+ * descriptor writeback format.
+ */
+static void iavf_extract_legacy_rx_fields(struct iavf_ring *rx_ring,
+ union iavf_rx_desc *rx_desc,
+ struct iavf_rx_extracted *fields)
+{
+ u64 qword = le64_to_cpu(rx_desc->wb.qword1.status_error_len);
+
+ fields->size = FIELD_GET(IAVF_RXD_QW1_LENGTH_PBUF_MASK, qword);
+ fields->rx_ptype = FIELD_GET(IAVF_RXD_QW1_PTYPE_MASK, qword);
+
+ if (qword & IAVF_RX_DESC_STATUS_L2TAG1P_MASK &&
+ rx_ring->flags & IAVF_TXRX_FLAGS_VLAN_TAG_LOC_L2TAG1)
+ fields->vlan_tag = le16_to_cpu(rx_desc->wb.qword0.lo_dword.l2tag1);
+
+ if (rx_desc->wb.qword2.ext_status &
+ cpu_to_le16(BIT(IAVF_RX_DESC_EXT_STATUS_L2TAG2P_SHIFT)) &&
+ rx_ring->flags & IAVF_RXR_FLAGS_VLAN_TAG_LOC_L2TAG2_2)
+ fields->vlan_tag = le16_to_cpu(rx_desc->wb.qword2.l2tag2_2);
+
+ fields->end_of_packet = FIELD_GET(IAVF_RX_DESC_STATUS_EOF_MASK, qword);
+ fields->rxe = FIELD_GET(BIT(IAVF_RXD_QW1_ERROR_SHIFT), qword);
+}
+
+/**
+ * iavf_extract_flex_rx_fields - Extract fields from the Rx descriptor
+ * @rx_ring: rx descriptor ring
+ * @rx_desc: the descriptor to process
+ * @fields: storage for extracted values
+ *
+ * Decode the Rx descriptor and extract relevant information including the
+ * size, VLAN tag, Rx packet type, end of packet field and RXE field value.
+ *
+ * This function only operates on the VIRTCHNL_RXDID_2_FLEX_SQ_NIC flexible
+ * descriptor writeback format.
+ */
+static void iavf_extract_flex_rx_fields(struct iavf_ring *rx_ring,
+ union iavf_rx_desc *rx_desc,
+ struct iavf_rx_extracted *fields)
+{
+ __le16 status0, status1, flexi_flags0;
+
+ fields->size = FIELD_GET(IAVF_RX_FLEX_DESC_PKT_LEN_M,
+ le16_to_cpu(rx_desc->flex_wb.pkt_len));
+
+ flexi_flags0 = rx_desc->flex_wb.ptype_flexi_flags0;
+
+ fields->rx_ptype = FIELD_GET(IAVF_RX_FLEX_DESC_PTYPE_M,
+ le16_to_cpu(flexi_flags0));
+
+ status0 = rx_desc->flex_wb.status_error0;
+ if (status0 & cpu_to_le16(IAVF_RX_FLEX_DESC_STATUS0_L2TAG1P_M) &&
+ rx_ring->flags & IAVF_TXRX_FLAGS_VLAN_TAG_LOC_L2TAG1)
+ fields->vlan_tag = le16_to_cpu(rx_desc->flex_wb.l2tag1);
+
+ status1 = rx_desc->flex_wb.status_error1;
+ if (status1 & cpu_to_le16(IAVF_RX_FLEX_DESC_STATUS1_L2TAG2P_M) &&
+ rx_ring->flags & IAVF_RXR_FLAGS_VLAN_TAG_LOC_L2TAG2_2)
+ fields->vlan_tag = le16_to_cpu(rx_desc->flex_wb.l2tag2_2nd);
+
+ fields->end_of_packet = FIELD_GET(IAVF_RX_FLEX_DESC_STATUS_ERR0_EOP_BIT,
+ le16_to_cpu(status0));
+ fields->rxe = FIELD_GET(IAVF_RX_FLEX_DESC_STATUS_ERR0_RXE_BIT,
+ le16_to_cpu(status0));
+}
+
+static void iavf_extract_rx_fields(struct iavf_ring *rx_ring,
+ union iavf_rx_desc *rx_desc,
+ struct iavf_rx_extracted *fields)
+{
+ if (rx_ring->rxdid == VIRTCHNL_RXDID_1_32B_BASE)
+ iavf_extract_legacy_rx_fields(rx_ring, rx_desc, fields);
+ else
+ iavf_extract_flex_rx_fields(rx_ring, rx_desc, fields);
+}
+
/**
* iavf_clean_rx_irq - Clean completed descriptors from Rx ring - bounce buf
* @rx_ring: rx descriptor ring to transact packets on
@@ -1498,12 +1700,9 @@ static int iavf_clean_rx_irq(struct iavf_ring *rx_ring, int budget)
bool failure = false;
while (likely(total_rx_packets < (unsigned int)budget)) {
+ struct iavf_rx_extracted fields = {};
struct iavf_rx_buffer *rx_buffer;
union iavf_rx_desc *rx_desc;
- unsigned int size;
- u16 vlan_tag = 0;
- u8 rx_ptype;
- u64 qword;
/* return some buffers to hardware, one at a time is too slow */
if (cleaned_count >= IAVF_RX_BUFFER_WRITE) {
@@ -1514,39 +1713,32 @@ static int iavf_clean_rx_irq(struct iavf_ring *rx_ring, int budget)
rx_desc = IAVF_RX_DESC(rx_ring, rx_ring->next_to_clean);
- /* status_error_len will always be zero for unused descriptors
- * because it's cleared in cleanup, and overlaps with hdr_addr
- * which is always zero because packet split isn't used, if the
- * hardware wrote DD then the length will be non-zero
- */
- qword = le64_to_cpu(rx_desc->wb.qword1.status_error_len);
-
/* This memory barrier is needed to keep us from reading
* any other fields out of the rx_desc until we have
* verified the descriptor has been written back.
*/
dma_rmb();
-#define IAVF_RXD_DD BIT(IAVF_RX_DESC_STATUS_DD_SHIFT)
- if (!iavf_test_staterr(rx_desc, IAVF_RXD_DD))
+ if (!iavf_test_staterr(rx_desc, IAVF_RX_DESC_STATUS_DD_MASK))
break;
- size = FIELD_GET(IAVF_RXD_QW1_LENGTH_PBUF_MASK, qword);
+ iavf_extract_rx_fields(rx_ring, rx_desc, &fields);
iavf_trace(clean_rx_irq, rx_ring, rx_desc, skb);
- rx_buffer = iavf_get_rx_buffer(rx_ring, size);
+ rx_buffer = iavf_get_rx_buffer(rx_ring, fields.size);
/* retrieve a buffer from the ring */
if (skb)
- iavf_add_rx_frag(rx_ring, rx_buffer, skb, size);
+ iavf_add_rx_frag(rx_ring, rx_buffer, skb, fields.size);
else if (ring_uses_build_skb(rx_ring))
- skb = iavf_build_skb(rx_ring, rx_buffer, size);
+ skb = iavf_build_skb(rx_ring, rx_buffer, fields.size);
else
- skb = iavf_construct_skb(rx_ring, rx_buffer, size);
+ skb = iavf_construct_skb(rx_ring, rx_buffer,
+ fields.size);
/* exit if we failed to retrieve a buffer */
if (!skb) {
rx_ring->rx_stats.alloc_buff_failed++;
- if (rx_buffer && size)
+ if (rx_buffer && fields.size)
rx_buffer->pagecnt_bias++;
break;
}
@@ -1554,15 +1746,14 @@ static int iavf_clean_rx_irq(struct iavf_ring *rx_ring, int budget)
iavf_put_rx_buffer(rx_ring, rx_buffer);
cleaned_count++;
- if (iavf_is_non_eop(rx_ring, rx_desc, skb))
+ if (iavf_is_non_eop(rx_ring, &fields, skb))
continue;
- /* ERR_MASK will only have valid bits if EOP set, and
- * what we are doing here is actually checking
- * IAVF_RX_DESC_ERROR_RXE_SHIFT, since it is the zeroth bit in
- * the error field
+ /* RXE field in descriptor is an indication of the MAC errors
+ * (like CRC, alignment, oversize etc). If it is set then iavf
+ * should finish.
*/
- if (unlikely(iavf_test_staterr(rx_desc, BIT(IAVF_RXD_QW1_ERROR_SHIFT)))) {
+ if (unlikely(fields.rxe)) {
dev_kfree_skb_any(skb);
skb = NULL;
continue;
@@ -1576,22 +1767,11 @@ static int iavf_clean_rx_irq(struct iavf_ring *rx_ring, int budget)
/* probably a little skewed due to removing CRC */
total_rx_bytes += skb->len;
- qword = le64_to_cpu(rx_desc->wb.qword1.status_error_len);
- rx_ptype = FIELD_GET(IAVF_RXD_QW1_PTYPE_MASK, qword);
-
/* populate checksum, VLAN, and protocol */
- iavf_process_skb_fields(rx_ring, rx_desc, skb, rx_ptype);
-
- if (qword & BIT(IAVF_RX_DESC_STATUS_L2TAG1P_SHIFT) &&
- rx_ring->flags & IAVF_TXRX_FLAGS_VLAN_TAG_LOC_L2TAG1)
- vlan_tag = le16_to_cpu(rx_desc->wb.qword0.lo_dword.l2tag1);
- if (rx_desc->wb.qword2.ext_status &
- cpu_to_le16(BIT(IAVF_RX_DESC_EXT_STATUS_L2TAG2P_SHIFT)) &&
- rx_ring->flags & IAVF_RXR_FLAGS_VLAN_TAG_LOC_L2TAG2_2)
- vlan_tag = le16_to_cpu(rx_desc->wb.qword2.l2tag2_2);
+ iavf_process_skb_fields(rx_ring, rx_desc, skb, fields.rx_ptype);
iavf_trace(clean_rx_irq_rx, rx_ring, rx_desc, skb);
- iavf_receive_skb(rx_ring, skb, vlan_tag);
+ iavf_receive_skb(rx_ring, skb, fields.vlan_tag);
skb = NULL;
/* update budget accounting */
@@ -170,6 +170,14 @@ static inline bool iavf_test_staterr(union iavf_rx_desc *rx_desc,
cpu_to_le64(stat_err_bits));
}
+struct iavf_rx_extracted {
+ unsigned int size;
+ u16 vlan_tag;
+ u16 rx_ptype;
+ u8 end_of_packet:1;
+ u8 rxe:1;
+};
+
/* How many Rx Buffers do we bundle into one write to the hardware ? */
#define IAVF_RX_INCREMENT(r, i) \
do { \
@@ -208,6 +208,45 @@ union iavf_16byte_rx_desc {
} wb; /* writeback */
};
+/* Rx Flex Descriptor NIC Profile
+ * RxDID Profile ID 2
+ * Flex-field 0: RSS hash lower 16-bits
+ * Flex-field 1: RSS hash upper 16-bits
+ * Flex-field 2: Flow ID lower 16-bits
+ * Flex-field 3: Flow ID higher 16-bits
+ * Flex-field 4: reserved, VLAN ID taken from L2Tag
+ */
+struct iavf_32byte_rx_flex_wb {
+ /* Qword 0 */
+ u8 rxdid;
+ u8 mir_id_umb_cast;
+ __le16 ptype_flexi_flags0;
+ __le16 pkt_len;
+ __le16 hdr_len_sph_flex_flags1;
+
+ /* Qword 1 */
+ __le16 status_error0;
+ __le16 l2tag1;
+ __le32 rss_hash;
+
+ /* Qword 2 */
+ __le16 status_error1;
+ u8 flexi_flags2;
+ u8 ts_low;
+ __le16 l2tag2_1st;
+ __le16 l2tag2_2nd;
+
+ /* Qword 3 */
+ __le32 flow_id;
+ union {
+ struct {
+ __le16 rsvd;
+ __le16 flow_id_ipv6;
+ } flex;
+ __le32 ts_high;
+ } flex_ts;
+};
+
union iavf_32byte_rx_desc {
struct {
__le64 pkt_addr; /* Packet buffer address */
@@ -255,35 +294,34 @@ union iavf_32byte_rx_desc {
} hi_dword;
} qword3;
} wb; /* writeback */
-};
+ struct iavf_32byte_rx_flex_wb flex_wb;
+};
+
+/* Note: These are predefined bit offsets */
+#define IAVF_RX_DESC_STATUS_DD_MASK BIT(0)
+#define IAVF_RX_DESC_STATUS_EOF_MASK BIT(1)
+#define IAVF_RX_DESC_STATUS_L2TAG1P_MASK BIT(2)
+#define IAVF_RX_DESC_STATUS_L3L4P_MASK BIT(3)
+#define IAVF_RX_DESC_STATUS_CRCP_MASK BIT(4)
+#define IAVF_RX_DESC_STATUS_TSYNINDX_MASK GENMASK_ULL(6, 5)
+#define IAVF_RX_DESC_STATUS_TSYNVALID_MASK BIT(7)
+/* Note: Bit 8 is reserved in X710 and XL710 */
+#define IAVF_RX_DESC_STATUS_EXT_UDP_0_MASK BIT(8)
+#define IAVF_RX_DESC_STATUS_UMBCAST_MASK GENMASK_ULL(10, 9)
+#define IAVF_RX_DESC_STATUS_FLM_MASK BIT(11)
+#define IAVF_RX_DESC_STATUS_FLTSTAT_MASK GENMASK_ULL(13, 12)
+#define IAVF_RX_DESC_STATUS_LPBK_MASK BIT(14)
+#define IAVF_RX_DESC_STATUS_IPV6EXADD_MASK BIT(15)
+#define IAVF_RX_DESC_STATUS_RESERVED_MASK GENMASK_ULL(17, 16)
+/* Note: For non-tunnel packets INT_UDP_0 is the right status for
+ * UDP header
+ */
+#define IAVF_RX_DESC_STATUS_INT_UDP_0_MASK BIT(18)
-enum iavf_rx_desc_status_bits {
- /* Note: These are predefined bit offsets */
- IAVF_RX_DESC_STATUS_DD_SHIFT = 0,
- IAVF_RX_DESC_STATUS_EOF_SHIFT = 1,
- IAVF_RX_DESC_STATUS_L2TAG1P_SHIFT = 2,
- IAVF_RX_DESC_STATUS_L3L4P_SHIFT = 3,
- IAVF_RX_DESC_STATUS_CRCP_SHIFT = 4,
- IAVF_RX_DESC_STATUS_TSYNINDX_SHIFT = 5, /* 2 BITS */
- IAVF_RX_DESC_STATUS_TSYNVALID_SHIFT = 7,
- /* Note: Bit 8 is reserved in X710 and XL710 */
- IAVF_RX_DESC_STATUS_EXT_UDP_0_SHIFT = 8,
- IAVF_RX_DESC_STATUS_UMBCAST_SHIFT = 9, /* 2 BITS */
- IAVF_RX_DESC_STATUS_FLM_SHIFT = 11,
- IAVF_RX_DESC_STATUS_FLTSTAT_SHIFT = 12, /* 2 BITS */
- IAVF_RX_DESC_STATUS_LPBK_SHIFT = 14,
- IAVF_RX_DESC_STATUS_IPV6EXADD_SHIFT = 15,
- IAVF_RX_DESC_STATUS_RESERVED_SHIFT = 16, /* 2 BITS */
- /* Note: For non-tunnel packets INT_UDP_0 is the right status for
- * UDP header
- */
- IAVF_RX_DESC_STATUS_INT_UDP_0_SHIFT = 18,
- IAVF_RX_DESC_STATUS_LAST /* this entry must be last!!! */
-};
+#define IAVF_RX_FLEX_DESC_STATUS_ERR0_EOP_BIT BIT(1)
+#define IAVF_RX_FLEX_DESC_STATUS_ERR0_RXE_BIT BIT(10)
-#define IAVF_RXD_QW1_STATUS_SHIFT 0
-#define IAVF_RXD_QW1_STATUS_MASK ((BIT(IAVF_RX_DESC_STATUS_LAST) - 1) \
- << IAVF_RXD_QW1_STATUS_SHIFT)
+#define IAVF_RXD_QW1_STATUS_MASK (BIT(19) - 1)
#define IAVF_RXD_QW1_STATUS_TSYNINDX_SHIFT IAVF_RX_DESC_STATUS_TSYNINDX_SHIFT
#define IAVF_RXD_QW1_STATUS_TSYNINDX_MASK (0x3UL << \
@@ -303,18 +341,16 @@ enum iavf_rx_desc_fltstat_values {
#define IAVF_RXD_QW1_ERROR_SHIFT 19
#define IAVF_RXD_QW1_ERROR_MASK (0xFFUL << IAVF_RXD_QW1_ERROR_SHIFT)
-enum iavf_rx_desc_error_bits {
- /* Note: These are predefined bit offsets */
- IAVF_RX_DESC_ERROR_RXE_SHIFT = 0,
- IAVF_RX_DESC_ERROR_RECIPE_SHIFT = 1,
- IAVF_RX_DESC_ERROR_HBO_SHIFT = 2,
- IAVF_RX_DESC_ERROR_L3L4E_SHIFT = 3, /* 3 BITS */
- IAVF_RX_DESC_ERROR_IPE_SHIFT = 3,
- IAVF_RX_DESC_ERROR_L4E_SHIFT = 4,
- IAVF_RX_DESC_ERROR_EIPE_SHIFT = 5,
- IAVF_RX_DESC_ERROR_OVERSIZE_SHIFT = 6,
- IAVF_RX_DESC_ERROR_PPRS_SHIFT = 7
-};
+/* Note: These are predefined bit offsets */
+#define IAVF_RX_DESC_ERROR_RXE_MASK BIT(0)
+#define IAVF_RX_DESC_ERROR_RECIPE_MASK BIT(1)
+#define IAVF_RX_DESC_ERROR_HBO_MASK BIT(2)
+#define IAVF_RX_DESC_ERROR_L3L4E_MASK GENMASK_ULL(5, 3)
+#define IAVF_RX_DESC_ERROR_IPE_MASK BIT(3)
+#define IAVF_RX_DESC_ERROR_L4E_MASK BIT(4)
+#define IAVF_RX_DESC_ERROR_EIPE_MASK BIT(5)
+#define IAVF_RX_DESC_ERROR_OVERSIZE_MASK BIT(6)
+#define IAVF_RX_DESC_ERROR_PPRS_MASK BIT(7)
enum iavf_rx_desc_error_l3l4e_fcoe_masks {
IAVF_RX_DESC_ERROR_L3L4E_NONE = 0,
@@ -327,6 +363,41 @@ enum iavf_rx_desc_error_l3l4e_fcoe_masks {
#define IAVF_RXD_QW1_PTYPE_SHIFT 30
#define IAVF_RXD_QW1_PTYPE_MASK (0xFFULL << IAVF_RXD_QW1_PTYPE_SHIFT)
+/* for iavf_32byte_rx_flex_wb.ptype_flexi_flags0 member */
+#define IAVF_RX_FLEX_DESC_PTYPE_M (0x3FF) /* 10-bits */
+
+/* for iavf_32byte_rx_flex_wb.pkt_length member */
+#define IAVF_RX_FLEX_DESC_PKT_LEN_M (0x3FFF) /* 14-bits */
+
+/* Note: These are predefined bit offsets */
+#define IAVF_RX_FLEX_DESC_STATUS0_DD_M BIT(0)
+#define IAVF_RX_FLEX_DESC_STATUS0_EOF_M BIT(1)
+#define IAVF_RX_FLEX_DESC_STATUS0_HBO_M BIT(2)
+#define IAVF_RX_FLEX_DESC_STATUS0_L3L4P_M BIT(3)
+#define IAVF_RX_FLEX_DESC_STATUS0_XSUM_IPE_M BIT(4)
+#define IAVF_RX_FLEX_DESC_STATUS0_XSUM_L4E_M BIT(5)
+#define IAVF_RX_FLEX_DESC_STATUS0_XSUM_EIPE_M BIT(6)
+#define IAVF_RX_FLEX_DESC_STATUS0_XSUM_EUDPE_M BIT(7)
+#define IAVF_RX_FLEX_DESC_STATUS0_LPBK_M BIT(8)
+#define IAVF_RX_FLEX_DESC_STATUS0_IPV6EXADD_M BIT(9)
+#define IAVF_RX_FLEX_DESC_STATUS0_RXE_M BIT(10)
+#define IAVF_RX_FLEX_DESC_STATUS0_CRCP_ BIT(11)
+#define IAVF_RX_FLEX_DESC_STATUS0_RSS_VALID_M BIT(12)
+#define IAVF_RX_FLEX_DESC_STATUS0_L2TAG1P_M BIT(13)
+#define IAVF_RX_FLEX_DESC_STATUS0_XTRMD0_VALID_M BIT(14)
+#define IAVF_RX_FLEX_DESC_STATUS0_XTRMD1_VALID_M BIT(15)
+
+/* Note: These are predefined bit offsets */
+#define IAVF_RX_FLEX_DESC_STATUS1_CPM_M (0xFULL) /* 4 bits */
+#define IAVF_RX_FLEX_DESC_STATUS1_NAT_M BIT(4)
+#define IAVF_RX_FLEX_DESC_STATUS1_CRYPTO_M BIT(5)
+/* [10:6] reserved */
+#define IAVF_RX_FLEX_DESC_STATUS1_L2TAG2P_M BIT(11)
+#define IAVF_RX_FLEX_DESC_STATUS1_XTRMD2_VALID_M BIT(12)
+#define IAVF_RX_FLEX_DESC_STATUS1_XTRMD3_VALID_M BIT(13)
+#define IAVF_RX_FLEX_DESC_STATUS1_XTRMD4_VALID_M BIT(14)
+#define IAVF_RX_FLEX_DESC_STATUS1_XTRMD5_VALID_M BIT(15)
+
/* Packet type non-ip values */
enum iavf_rx_l2_ptype {
IAVF_RX_PTYPE_L2_RESERVED = 0,
@@ -397,6 +397,7 @@ void iavf_configure_queues(struct iavf_adapter *adapter)
int i, max_frame = adapter->vf_res->max_mtu;
int pairs = adapter->num_active_queues;
struct virtchnl_queue_pair_info *vqpi;
+ u8 rx_flags = 0;
size_t len;
if (max_frame > IAVF_MAX_RXBUFFER || !max_frame)
@@ -414,6 +415,9 @@ void iavf_configure_queues(struct iavf_adapter *adapter)
if (!vqci)
return;
+ if (iavf_ptp_cap_supported(adapter, VIRTCHNL_1588_PTP_CAP_RX_TSTAMP))
+ rx_flags |= VIRTCHNL_PTP_RX_TSTAMP;
+
/* Limit maximum frame size when jumbo frames is not enabled */
if (!(adapter->flags & IAVF_FLAG_LEGACY_RX) &&
(adapter->netdev->mtu <= ETH_DATA_LEN))
@@ -443,6 +447,7 @@ void iavf_configure_queues(struct iavf_adapter *adapter)
if (CRC_OFFLOAD_ALLOWED(adapter))
vqpi->rxq.crc_disable = !!(adapter->netdev->features &
NETIF_F_RXFCS);
+ vqpi->rxq.flags = rx_flags;
vqpi++;
}