[PATCH net-next 11/13] bnxt_en: Add support for UDP GSO on 5760X chips
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STALE997d
LANDED: 2 (0M)
From: Michael Chan <michael.chan@broadcom.com>
Date: 2023-12-12 00:52:00
Subsystem:
broadcom bnxt_en 50 gigabit ethernet driver, networking drivers, the rest · Maintainers:
Michael Chan, Pavan Chebbi, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Revision v1 of 2 in this series; 2 review trailers; landed in mainline as feeef68f6f3d on 2023-12-13.
Revisions (2)
- v1
- v1 current
The new 5760X chips supports UDP GSO. Tested using udpgso_bench_tx. Reviewed-by: Andy Gospodarek <redacted> Reviewed-by: Somnath Kotur <redacted> Signed-off-by: Michael Chan <michael.chan@broadcom.com> --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 21 ++++++++++++++++++--- drivers/net/ethernet/broadcom/bnxt/bnxt.h | 1 + 2 files changed, 19 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 3594290e187a..be3fa0545fdc 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c@@ -587,12 +587,21 @@ static netdev_tx_t bnxt_start_xmit(struct sk_buff *skb, struct net_device *dev) txbd1->tx_bd_hsize_lflags = lflags; if (skb_is_gso(skb)) { + bool udp_gso = !!(skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4); u32 hdr_len; - if (skb->encapsulation) - hdr_len = skb_inner_tcp_all_headers(skb); - else + if (skb->encapsulation) { + if (udp_gso) + hdr_len = skb_inner_transport_offset(skb) + + sizeof(struct udphdr); + else + hdr_len = skb_inner_tcp_all_headers(skb); + } else if (udp_gso) { + hdr_len = skb_transport_offset(skb) + + sizeof(struct udphdr); + } else { hdr_len = skb_tcp_all_headers(skb); + } txbd1->tx_bd_hsize_lflags |= cpu_to_le32(TX_BD_FLAGS_LSO | TX_BD_FLAGS_T_IPID |
@@ -8345,6 +8354,8 @@ static int __bnxt_hwrm_func_qcaps(struct bnxt *bp) flags_ext2 = le32_to_cpu(resp->flags_ext2); if (flags_ext2 & FUNC_QCAPS_RESP_FLAGS_EXT2_RX_ALL_PKTS_TIMESTAMPS_SUPPORTED) bp->fw_cap |= BNXT_FW_CAP_RX_ALL_PKT_TS; + if (flags_ext2 & FUNC_QCAPS_RESP_FLAGS_EXT2_UDP_GSO_SUPPORTED) + bp->flags |= BNXT_FLAG_UDP_GSO_CAP; bp->tx_push_thresh = 0; if ((flags & FUNC_QCAPS_RESP_FLAGS_PUSH_MODE_SUPPORTED) &&
@@ -14351,6 +14362,8 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_GSO_GRE_CSUM | NETIF_F_GSO_PARTIAL | NETIF_F_RXHASH | NETIF_F_RXCSUM | NETIF_F_GRO; + if (bp->flags & BNXT_FLAG_UDP_GSO_CAP) + dev->hw_features |= NETIF_F_GSO_UDP_L4; if (BNXT_SUPPORTS_TPA(bp)) dev->hw_features |= NETIF_F_LRO;
@@ -14361,6 +14374,8 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_GRE | NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_GSO_GRE_CSUM | NETIF_F_GSO_IPXIP4 | NETIF_F_GSO_PARTIAL; + if (bp->flags & BNXT_FLAG_UDP_GSO_CAP) + dev->hw_enc_features |= NETIF_F_GSO_UDP_L4; if (bp->flags & BNXT_FLAG_CHIP_P7) dev->udp_tunnel_nic_info = &bnxt_udp_tunnels_p7; else
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index 15d33f4a61c2..1269463b9b04 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h@@ -2044,6 +2044,7 @@ struct bnxt { #define BNXT_FLAG_MULTI_HOST 0x100000 #define BNXT_FLAG_DSN_VALID 0x200000 #define BNXT_FLAG_DOUBLE_DB 0x400000 + #define BNXT_FLAG_UDP_GSO_CAP 0x800000 #define BNXT_FLAG_CHIP_NITRO_A0 0x1000000 #define BNXT_FLAG_DIM 0x2000000 #define BNXT_FLAG_ROCE_MIRROR_CAP 0x4000000
--
2.30.1
Attachments
- smime.p7s [application/pkcs7-signature] 4209 bytes