aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/ethernet/chelsio
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/ethernet/chelsio')
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/cxgb4.h1
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c1
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c3
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c11
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/sge.c159
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h14
6 files changed, 139 insertions, 50 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
index 61a2cf62f694..04cb8909feeb 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
@@ -772,6 +772,7 @@ struct sge_eth_txq { /* state for an SGE Ethernet Tx queue */
u8 dbqt; /* SGE Doorbell Queue Timer in use */
unsigned int dbqtimerix; /* SGE Doorbell Queue Timer Index */
unsigned long tso; /* # of TSO requests */
+ unsigned long uso; /* # of USO requests */
unsigned long tx_cso; /* # of Tx checksum offloads */
unsigned long vlan_ins; /* # of Tx VLAN insertions */
unsigned long mapping_err; /* # of I/O MMU packet mapping errors */
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
index a13b03f771cc..fa229d0f1016 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
@@ -2748,6 +2748,7 @@ do { \
RL("RxDrops:", stats.rx_drops);
RL("RxBadPkts:", stats.bad_rx_pkts);
TL("TSO:", tso);
+ TL("USO:", uso);
TL("TxCSO:", tx_cso);
TL("VLANins:", vlan_ins);
TL("TxQFull:", q.stops);
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c
index 76538f4cd595..f57457453561 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c
@@ -91,6 +91,7 @@ static const char stats_strings[][ETH_GSTRING_LEN] = {
"rx_bg3_frames_trunc ",
"tso ",
+ "uso ",
"tx_csum_offload ",
"rx_csum_good ",
"vlan_extractions ",
@@ -220,6 +221,7 @@ static void get_strings(struct net_device *dev, u32 stringset, u8 *data)
*/
struct queue_port_stats {
u64 tso;
+ u64 uso;
u64 tx_csum;
u64 rx_csum;
u64 vlan_ex;
@@ -247,6 +249,7 @@ static void collect_sge_port_stats(const struct adapter *adap,
memset(s, 0, sizeof(*s));
for (i = 0; i < p->nqsets; i++, rx++, tx++) {
s->tso += tx->tso;
+ s->uso += tx->uso;
s->tx_csum += tx->tx_cso;
s->rx_csum += rx->stats.rx_cso;
s->vlan_ex += rx->stats.vlan_ex;
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index e8a1826a1e90..12ff69b3ba91 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -1136,11 +1136,17 @@ static u16 cxgb_select_queue(struct net_device *dev, struct sk_buff *skb,
if (dev->num_tc) {
struct port_info *pi = netdev2pinfo(dev);
+ u8 ver, proto;
+
+ ver = ip_hdr(skb)->version;
+ proto = (ver == 6) ? ipv6_hdr(skb)->nexthdr :
+ ip_hdr(skb)->protocol;
/* Send unsupported traffic pattern to normal NIC queues. */
txq = netdev_pick_tx(dev, skb, sb_dev);
if (xfrm_offload(skb) || is_ptp_enabled(skb, dev) ||
- ip_hdr(skb)->protocol != IPPROTO_TCP)
+ skb->encapsulation ||
+ (proto != IPPROTO_TCP && proto != IPPROTO_UDP))
txq = txq % pi->nqsets;
return txq;
@@ -5838,7 +5844,8 @@ static void free_some_resources(struct adapter *adapter)
t4_fw_bye(adapter, adapter->pf);
}
-#define TSO_FLAGS (NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_TSO_ECN)
+#define TSO_FLAGS (NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_TSO_ECN | \
+ NETIF_F_GSO_UDP_L4)
#define VLAN_FEAT (NETIF_F_SG | NETIF_F_IP_CSUM | TSO_FLAGS | \
NETIF_F_GRO | NETIF_F_IPV6_CSUM | NETIF_F_HIGHDMA)
#define SEGMENT_SIZE 128
diff --git a/drivers/net/ethernet/chelsio/cxgb4/sge.c b/drivers/net/ethernet/chelsio/cxgb4/sge.c
index 5ad54493f825..53f9a821c29f 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/sge.c
@@ -734,6 +734,8 @@ static inline int is_eth_imm(const struct sk_buff *skb, unsigned int chip_ver)
chip_ver > CHELSIO_T5) {
hdrlen = sizeof(struct cpl_tx_tnl_lso);
hdrlen += sizeof(struct cpl_tx_pkt_core);
+ } else if (skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4) {
+ return 0;
} else {
hdrlen = skb_shinfo(skb)->gso_size ?
sizeof(struct cpl_tx_pkt_lso_core) : 0;
@@ -775,12 +777,20 @@ static inline unsigned int calc_tx_flits(const struct sk_buff *skb,
*/
flits = sgl_len(skb_shinfo(skb)->nr_frags + 1);
if (skb_shinfo(skb)->gso_size) {
- if (skb->encapsulation && chip_ver > CHELSIO_T5)
+ if (skb->encapsulation && chip_ver > CHELSIO_T5) {
hdrlen = sizeof(struct fw_eth_tx_pkt_wr) +
sizeof(struct cpl_tx_tnl_lso);
- else
+ } else if (skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4) {
+ u32 pkt_hdrlen;
+
+ pkt_hdrlen = eth_get_headlen(skb->dev, skb->data,
+ skb_headlen(skb));
+ hdrlen = sizeof(struct fw_eth_tx_eo_wr) +
+ round_up(pkt_hdrlen, 16);
+ } else {
hdrlen = sizeof(struct fw_eth_tx_pkt_wr) +
sizeof(struct cpl_tx_pkt_lso_core);
+ }
hdrlen += sizeof(struct cpl_tx_pkt_core);
flits += (hdrlen / sizeof(__be64));
@@ -1345,6 +1355,25 @@ static inline int cxgb4_validate_skb(struct sk_buff *skb,
return 0;
}
+static void *write_eo_udp_wr(struct sk_buff *skb, struct fw_eth_tx_eo_wr *wr,
+ u32 hdr_len)
+{
+ wr->u.udpseg.type = FW_ETH_TX_EO_TYPE_UDPSEG;
+ wr->u.udpseg.ethlen = skb_network_offset(skb);
+ wr->u.udpseg.iplen = cpu_to_be16(skb_network_header_len(skb));
+ wr->u.udpseg.udplen = sizeof(struct udphdr);
+ wr->u.udpseg.rtplen = 0;
+ wr->u.udpseg.r4 = 0;
+ if (skb_shinfo(skb)->gso_size)
+ wr->u.udpseg.mss = cpu_to_be16(skb_shinfo(skb)->gso_size);
+ else
+ wr->u.udpseg.mss = cpu_to_be16(skb->len - hdr_len);
+ wr->u.udpseg.schedpktsize = wr->u.udpseg.mss;
+ wr->u.udpseg.plen = cpu_to_be32(skb->len - hdr_len);
+
+ return (void *)(wr + 1);
+}
+
/**
* cxgb4_eth_xmit - add a packet to an Ethernet Tx queue
* @skb: the packet
@@ -1357,14 +1386,15 @@ static netdev_tx_t cxgb4_eth_xmit(struct sk_buff *skb, struct net_device *dev)
enum cpl_tx_tnl_lso_type tnl_type = TX_TNL_TYPE_OPAQUE;
bool ptp_enabled = is_ptp_enabled(skb, dev);
unsigned int last_desc, flits, ndesc;
+ u32 wr_mid, ctrl0, op, sgl_off = 0;
const struct skb_shared_info *ssi;
+ int len, qidx, credits, ret, left;
struct tx_sw_desc *sgl_sdesc;
+ struct fw_eth_tx_eo_wr *eowr;
struct fw_eth_tx_pkt_wr *wr;
struct cpl_tx_pkt_core *cpl;
- int len, qidx, credits, ret;
const struct port_info *pi;
bool immediate = false;
- u32 wr_mid, ctrl0, op;
u64 cntrl, *end, *sgl;
struct sge_eth_txq *q;
unsigned int chip_ver;
@@ -1469,13 +1499,17 @@ static netdev_tx_t cxgb4_eth_xmit(struct sk_buff *skb, struct net_device *dev)
}
wr = (void *)&q->q.desc[q->q.pidx];
+ eowr = (void *)&q->q.desc[q->q.pidx];
wr->equiq_to_len16 = htonl(wr_mid);
wr->r3 = cpu_to_be64(0);
- end = (u64 *)wr + flits;
+ if (skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4)
+ end = (u64 *)eowr + flits;
+ else
+ end = (u64 *)wr + flits;
len = immediate ? skb->len : 0;
len += sizeof(*cpl);
- if (ssi->gso_size) {
+ if (ssi->gso_size && !(ssi->gso_type & SKB_GSO_UDP_L4)) {
struct cpl_tx_pkt_lso_core *lso = (void *)(wr + 1);
struct cpl_tx_tnl_lso *tnl_lso = (void *)(wr + 1);
@@ -1507,20 +1541,29 @@ static netdev_tx_t cxgb4_eth_xmit(struct sk_buff *skb, struct net_device *dev)
cntrl = hwcsum(adap->params.chip, skb);
}
sgl = (u64 *)(cpl + 1); /* sgl start here */
- if (unlikely((u8 *)sgl >= (u8 *)q->q.stat)) {
- /* If current position is already at the end of the
- * txq, reset the current to point to start of the queue
- * and update the end ptr as well.
- */
- if (sgl == (u64 *)q->q.stat) {
- int left = (u8 *)end - (u8 *)q->q.stat;
-
- end = (void *)q->q.desc + left;
- sgl = (void *)q->q.desc;
- }
- }
q->tso++;
q->tx_cso += ssi->gso_segs;
+ } else if (ssi->gso_size) {
+ u64 *start;
+ u32 hdrlen;
+
+ hdrlen = eth_get_headlen(dev, skb->data, skb_headlen(skb));
+ len += hdrlen;
+ wr->op_immdlen = cpu_to_be32(FW_WR_OP_V(FW_ETH_TX_EO_WR) |
+ FW_ETH_TX_EO_WR_IMMDLEN_V(len));
+ cpl = write_eo_udp_wr(skb, eowr, hdrlen);
+ cntrl = hwcsum(adap->params.chip, skb);
+
+ start = (u64 *)(cpl + 1);
+ sgl = (u64 *)inline_tx_skb_header(skb, &q->q, (void *)start,
+ hdrlen);
+ if (unlikely(start > sgl)) {
+ left = (u8 *)end - (u8 *)q->q.stat;
+ end = (void *)q->q.desc + left;
+ }
+ sgl_off = hdrlen;
+ q->uso++;
+ q->tx_cso += ssi->gso_segs;
} else {
if (ptp_enabled)
op = FW_PTP_TX_PKT_WR;
@@ -1537,6 +1580,16 @@ static netdev_tx_t cxgb4_eth_xmit(struct sk_buff *skb, struct net_device *dev)
}
}
+ if (unlikely((u8 *)sgl >= (u8 *)q->q.stat)) {
+ /* If current position is already at the end of the
+ * txq, reset the current to point to start of the queue
+ * and update the end ptr as well.
+ */
+ left = (u8 *)end - (u8 *)q->q.stat;
+ end = (void *)q->q.desc + left;
+ sgl = (void *)q->q.desc;
+ }
+
if (skb_vlan_tag_present(skb)) {
q->vlan_ins++;
cntrl |= TXPKT_VLAN_VLD_F | TXPKT_VLAN_V(skb_vlan_tag_get(skb));
@@ -1566,7 +1619,7 @@ static netdev_tx_t cxgb4_eth_xmit(struct sk_buff *skb, struct net_device *dev)
cxgb4_inline_tx_skb(skb, &q->q, sgl);
dev_consume_skb_any(skb);
} else {
- cxgb4_write_sgl(skb, &q->q, (void *)sgl, end, 0,
+ cxgb4_write_sgl(skb, &q->q, (void *)sgl, end, sgl_off,
sgl_sdesc->addr);
skb_orphan(skb);
sgl_sdesc->skb = skb;
@@ -2024,7 +2077,8 @@ static inline u8 ethofld_calc_tx_flits(struct adapter *adap,
u32 wrlen;
wrlen = sizeof(struct fw_eth_tx_eo_wr) + sizeof(struct cpl_tx_pkt_core);
- if (skb_shinfo(skb)->gso_size)
+ if (skb_shinfo(skb)->gso_size &&
+ !(skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4))
wrlen += sizeof(struct cpl_tx_pkt_lso_core);
wrlen += roundup(hdr_len, 16);
@@ -2032,10 +2086,14 @@ static inline u8 ethofld_calc_tx_flits(struct adapter *adap,
/* Packet headers + WR + CPLs */
flits = DIV_ROUND_UP(wrlen, 8);
- if (skb_shinfo(skb)->nr_frags > 0)
- nsgl = sgl_len(skb_shinfo(skb)->nr_frags);
- else if (skb->len - hdr_len)
+ if (skb_shinfo(skb)->nr_frags > 0) {
+ if (skb_headlen(skb) - hdr_len)
+ nsgl = sgl_len(skb_shinfo(skb)->nr_frags + 1);
+ else
+ nsgl = sgl_len(skb_shinfo(skb)->nr_frags);
+ } else if (skb->len - hdr_len) {
nsgl = sgl_len(1);
+ }
return flits + nsgl;
}
@@ -2049,16 +2107,16 @@ static inline void *write_eo_wr(struct adapter *adap,
struct cpl_tx_pkt_core *cpl;
u32 immd_len, wrlen16;
bool compl = false;
+ u8 ver, proto;
+
+ ver = ip_hdr(skb)->version;
+ proto = (ver == 6) ? ipv6_hdr(skb)->nexthdr : ip_hdr(skb)->protocol;
wrlen16 = DIV_ROUND_UP(wrlen, 16);
immd_len = sizeof(struct cpl_tx_pkt_core);
- if (skb_shinfo(skb)->gso_size) {
- if (skb->encapsulation &&
- CHELSIO_CHIP_VERSION(adap->params.chip) > CHELSIO_T5)
- immd_len += sizeof(struct cpl_tx_tnl_lso);
- else
- immd_len += sizeof(struct cpl_tx_pkt_lso_core);
- }
+ if (skb_shinfo(skb)->gso_size &&
+ !(skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4))
+ immd_len += sizeof(struct cpl_tx_pkt_lso_core);
immd_len += hdr_len;
if (!eosw_txq->ncompl ||
@@ -2074,23 +2132,27 @@ static inline void *write_eo_wr(struct adapter *adap,
wr->equiq_to_len16 = cpu_to_be32(FW_WR_LEN16_V(wrlen16) |
FW_WR_FLOWID_V(eosw_txq->hwtid));
wr->r3 = 0;
- wr->u.tcpseg.type = FW_ETH_TX_EO_TYPE_TCPSEG;
- wr->u.tcpseg.ethlen = skb_network_offset(skb);
- wr->u.tcpseg.iplen = cpu_to_be16(skb_network_header_len(skb));
- wr->u.tcpseg.tcplen = tcp_hdrlen(skb);
- wr->u.tcpseg.tsclk_tsoff = 0;
- wr->u.tcpseg.r4 = 0;
- wr->u.tcpseg.r5 = 0;
- wr->u.tcpseg.plen = cpu_to_be32(skb->len - hdr_len);
-
- if (ssi->gso_size) {
- struct cpl_tx_pkt_lso_core *lso = (void *)(wr + 1);
-
- wr->u.tcpseg.mss = cpu_to_be16(ssi->gso_size);
- cpl = write_tso_wr(adap, skb, lso);
+ if (proto == IPPROTO_UDP) {
+ cpl = write_eo_udp_wr(skb, wr, hdr_len);
} else {
- wr->u.tcpseg.mss = cpu_to_be16(0xffff);
- cpl = (void *)(wr + 1);
+ wr->u.tcpseg.type = FW_ETH_TX_EO_TYPE_TCPSEG;
+ wr->u.tcpseg.ethlen = skb_network_offset(skb);
+ wr->u.tcpseg.iplen = cpu_to_be16(skb_network_header_len(skb));
+ wr->u.tcpseg.tcplen = tcp_hdrlen(skb);
+ wr->u.tcpseg.tsclk_tsoff = 0;
+ wr->u.tcpseg.r4 = 0;
+ wr->u.tcpseg.r5 = 0;
+ wr->u.tcpseg.plen = cpu_to_be32(skb->len - hdr_len);
+
+ if (ssi->gso_size) {
+ struct cpl_tx_pkt_lso_core *lso = (void *)(wr + 1);
+
+ wr->u.tcpseg.mss = cpu_to_be16(ssi->gso_size);
+ cpl = write_tso_wr(adap, skb, lso);
+ } else {
+ wr->u.tcpseg.mss = cpu_to_be16(0xffff);
+ cpl = (void *)(wr + 1);
+ }
}
eosw_txq->cred -= wrlen16;
@@ -4312,7 +4374,10 @@ int t4_sge_alloc_eth_txq(struct adapter *adap, struct sge_eth_txq *txq,
txq->q.q_type = CXGB4_TXQ_ETH;
init_txq(adap, &txq->q, FW_EQ_ETH_CMD_EQID_G(ntohl(c.eqid_pkd)));
txq->txq = netdevq;
- txq->tso = txq->tx_cso = txq->vlan_ins = 0;
+ txq->tso = 0;
+ txq->uso = 0;
+ txq->tx_cso = 0;
+ txq->vlan_ins = 0;
txq->mapping_err = 0;
txq->dbqt = dbqt;
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h b/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
index 414e5cca293e..ac4fb43bdec6 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
@@ -536,7 +536,8 @@ struct fw_eth_tx_pkt_wr {
};
enum fw_eth_tx_eo_type {
- FW_ETH_TX_EO_TYPE_TCPSEG = 1,
+ FW_ETH_TX_EO_TYPE_UDPSEG = 0,
+ FW_ETH_TX_EO_TYPE_TCPSEG,
};
struct fw_eth_tx_eo_wr {
@@ -544,6 +545,17 @@ struct fw_eth_tx_eo_wr {
__be32 equiq_to_len16;
__be64 r3;
union fw_eth_tx_eo {
+ struct fw_eth_tx_eo_udpseg {
+ __u8 type;
+ __u8 ethlen;
+ __be16 iplen;
+ __u8 udplen;
+ __u8 rtplen;
+ __be16 r4;
+ __be16 mss;
+ __be16 schedpktsize;
+ __be32 plen;
+ } udpseg;
struct fw_eth_tx_eo_tcpseg {
__u8 type;
__u8 ethlen;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.