summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--drivers/net/ethernet/freescale/enetc/enetc.c53
-rw-r--r--drivers/net/ethernet/freescale/enetc/enetc.h2
-rw-r--r--drivers/net/ethernet/freescale/enetc/enetc_hw.h15
-rw-r--r--drivers/net/ethernet/freescale/enetc/enetc_pf_common.c3
4 files changed, 63 insertions, 10 deletions
diff --git a/drivers/net/ethernet/freescale/enetc/enetc.c b/drivers/net/ethernet/freescale/enetc/enetc.c
index 535969fa0fdb..88f12c88110f 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc.c
@@ -146,6 +146,27 @@ static int enetc_ptp_parse(struct sk_buff *skb, u8 *udp,
return 0;
}
+static bool enetc_tx_csum_offload_check(struct sk_buff *skb)
+{
+ switch (skb->csum_offset) {
+ case offsetof(struct tcphdr, check):
+ case offsetof(struct udphdr, check):
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool enetc_skb_is_ipv6(struct sk_buff *skb)
+{
+ return vlan_get_protocol(skb) == htons(ETH_P_IPV6);
+}
+
+static bool enetc_skb_is_tcp(struct sk_buff *skb)
+{
+ return skb->csum_offset == offsetof(struct tcphdr, check);
+}
+
static int enetc_map_tx_buffs(struct enetc_bdr *tx_ring, struct sk_buff *skb)
{
bool do_vlan, do_onestep_tstamp = false, do_twostep_tstamp = false;
@@ -163,6 +184,29 @@ static int enetc_map_tx_buffs(struct enetc_bdr *tx_ring, struct sk_buff *skb)
dma_addr_t dma;
u8 flags = 0;
+ enetc_clear_tx_bd(&temp_bd);
+ if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ /* Can not support TSD and checksum offload at the same time */
+ if (priv->active_offloads & ENETC_F_TXCSUM &&
+ enetc_tx_csum_offload_check(skb) && !tx_ring->tsd_enable) {
+ temp_bd.l3_aux0 = FIELD_PREP(ENETC_TX_BD_L3_START,
+ skb_network_offset(skb));
+ temp_bd.l3_aux1 = FIELD_PREP(ENETC_TX_BD_L3_HDR_LEN,
+ skb_network_header_len(skb) / 4);
+ temp_bd.l3_aux1 |= FIELD_PREP(ENETC_TX_BD_L3T,
+ enetc_skb_is_ipv6(skb));
+ if (enetc_skb_is_tcp(skb))
+ temp_bd.l4_aux = FIELD_PREP(ENETC_TX_BD_L4T,
+ ENETC_TXBD_L4T_TCP);
+ else
+ temp_bd.l4_aux = FIELD_PREP(ENETC_TX_BD_L4T,
+ ENETC_TXBD_L4T_UDP);
+ flags |= ENETC_TXBD_FLAGS_CSUM_LSO | ENETC_TXBD_FLAGS_L4CS;
+ } else if (skb_checksum_help(skb)) {
+ return 0;
+ }
+ }
+
i = tx_ring->next_to_use;
txbd = ENETC_TXBD(*tx_ring, i);
prefetchw(txbd);
@@ -173,7 +217,6 @@ static int enetc_map_tx_buffs(struct enetc_bdr *tx_ring, struct sk_buff *skb)
temp_bd.addr = cpu_to_le64(dma);
temp_bd.buf_len = cpu_to_le16(len);
- temp_bd.lstatus = 0;
tx_swbd = &tx_ring->tx_swbd[i];
tx_swbd->dma = dma;
@@ -594,7 +637,7 @@ static netdev_tx_t enetc_start_xmit(struct sk_buff *skb,
{
struct enetc_ndev_priv *priv = netdev_priv(ndev);
struct enetc_bdr *tx_ring;
- int count, err;
+ int count;
/* Queue one-step Sync packet if already locked */
if (skb->cb[0] & ENETC_F_TX_ONESTEP_SYNC_TSTAMP) {
@@ -627,11 +670,6 @@ static netdev_tx_t enetc_start_xmit(struct sk_buff *skb,
return NETDEV_TX_BUSY;
}
- if (skb->ip_summed == CHECKSUM_PARTIAL) {
- err = skb_checksum_help(skb);
- if (err)
- goto drop_packet_err;
- }
enetc_lock_mdio();
count = enetc_map_tx_buffs(tx_ring, skb);
enetc_unlock_mdio();
@@ -3274,6 +3312,7 @@ static const struct enetc_drvdata enetc_pf_data = {
static const struct enetc_drvdata enetc4_pf_data = {
.sysclk_freq = ENETC_CLK_333M,
+ .tx_csum = true,
.pmac_offset = ENETC4_PMAC_OFFSET,
.eth_ops = &enetc4_pf_ethtool_ops,
};
diff --git a/drivers/net/ethernet/freescale/enetc/enetc.h b/drivers/net/ethernet/freescale/enetc/enetc.h
index 72fa03dbc2dd..e82eb9a9137c 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc.h
+++ b/drivers/net/ethernet/freescale/enetc/enetc.h
@@ -234,6 +234,7 @@ enum enetc_errata {
struct enetc_drvdata {
u32 pmac_offset; /* Only valid for PSI which supports 802.1Qbu */
+ u8 tx_csum:1;
u64 sysclk_freq;
const struct ethtool_ops *eth_ops;
};
@@ -341,6 +342,7 @@ enum enetc_active_offloads {
ENETC_F_QBV = BIT(9),
ENETC_F_QCI = BIT(10),
ENETC_F_QBU = BIT(11),
+ ENETC_F_TXCSUM = BIT(12),
};
enum enetc_flags_bit {
diff --git a/drivers/net/ethernet/freescale/enetc/enetc_hw.h b/drivers/net/ethernet/freescale/enetc/enetc_hw.h
index 55ba949230ff..0e259baf36ee 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc_hw.h
+++ b/drivers/net/ethernet/freescale/enetc/enetc_hw.h
@@ -558,7 +558,16 @@ union enetc_tx_bd {
__le16 frm_len;
union {
struct {
- u8 reserved[3];
+ u8 l3_aux0;
+#define ENETC_TX_BD_L3_START GENMASK(6, 0)
+#define ENETC_TX_BD_IPCS BIT(7)
+ u8 l3_aux1;
+#define ENETC_TX_BD_L3_HDR_LEN GENMASK(6, 0)
+#define ENETC_TX_BD_L3T BIT(7)
+ u8 l4_aux;
+#define ENETC_TX_BD_L4T GENMASK(7, 5)
+#define ENETC_TXBD_L4T_UDP 1
+#define ENETC_TXBD_L4T_TCP 2
u8 flags;
}; /* default layout */
__le32 txstart;
@@ -582,10 +591,10 @@ union enetc_tx_bd {
};
enum enetc_txbd_flags {
- ENETC_TXBD_FLAGS_RES0 = BIT(0), /* reserved */
+ ENETC_TXBD_FLAGS_L4CS = BIT(0), /* For ENETC 4.1 and later */
ENETC_TXBD_FLAGS_TSE = BIT(1),
ENETC_TXBD_FLAGS_W = BIT(2),
- ENETC_TXBD_FLAGS_RES3 = BIT(3), /* reserved */
+ ENETC_TXBD_FLAGS_CSUM_LSO = BIT(3), /* For ENETC 4.1 and later */
ENETC_TXBD_FLAGS_TXSTART = BIT(4),
ENETC_TXBD_FLAGS_EX = BIT(6),
ENETC_TXBD_FLAGS_F = BIT(7)
diff --git a/drivers/net/ethernet/freescale/enetc/enetc_pf_common.c b/drivers/net/ethernet/freescale/enetc/enetc_pf_common.c
index 0eecfc833164..09f2d7ec44eb 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc_pf_common.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc_pf_common.c
@@ -119,6 +119,9 @@ void enetc_pf_netdev_setup(struct enetc_si *si, struct net_device *ndev,
ndev->priv_flags |= IFF_UNICAST_FLT;
+ if (si->drvdata->tx_csum)
+ priv->active_offloads |= ENETC_F_TXCSUM;
+
/* TODO: currently, i.MX95 ENETC driver does not support advanced features */
if (!is_enetc_rev1(si)) {
ndev->hw_features &= ~(NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_LOOPBACK);
generated by cgit v1.2.3 (git 2.46.0) at 2025-07-29 02:09:18 +0000