revert two stable patches that have reports about regressions
we never released them yet (only introduced after 6.1.0), but there are upstream reports about regressions for them at: https://lore.kernel.org/netdev/CAK8fFZ5pzMaw3U1KXgC_OK4shKGsN=HDcR62cfPOuL0umXE1Ww@mail.gmail.com/ https://lore.kernel.org/netdev/CAK8fFZ6A_Gphw_3-QMGKEFQk=sfCw1Qmq0TVZK3rtAi7vb621A@mail.gmail.com/ So do a preventive revert. Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
This commit is contained in:
Thomas Lamprecht
parent
898be11352
commit
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@ -0,0 +1,68 @@
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Thomas Lamprecht <t.lamprecht@proxmox.com>
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Date: Sat, 7 Jan 2023 13:48:41 +0100
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Subject: [PATCH] Revert "RDMA/irdma: Report the correct link speed"
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seem to cause a regression with some NICs:
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https://lore.kernel.org/netdev/CAK8fFZ6A_Gphw_3-QMGKEFQk=sfCw1Qmq0TVZK3rtAi7vb621A@mail.gmail.com/
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This reverts commit e8553504e366c8a47d1f6156c30d6eb9778cda13.
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Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
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---
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drivers/infiniband/hw/irdma/verbs.c | 35 ++++++++++++++++++++++++++---
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1 file changed, 32 insertions(+), 3 deletions(-)
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diff --git a/drivers/infiniband/hw/irdma/verbs.c b/drivers/infiniband/hw/irdma/verbs.c
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index f6973ea55eda..132fe91bb799 100644
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--- a/drivers/infiniband/hw/irdma/verbs.c
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+++ b/drivers/infiniband/hw/irdma/verbs.c
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@@ -63,6 +63,36 @@ static int irdma_query_device(struct ib_device *ibdev,
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return 0;
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}
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+/**
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+ * irdma_get_eth_speed_and_width - Get IB port speed and width from netdev speed
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+ * @link_speed: netdev phy link speed
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+ * @active_speed: IB port speed
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+ * @active_width: IB port width
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+ */
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+static void irdma_get_eth_speed_and_width(u32 link_speed, u16 *active_speed,
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+ u8 *active_width)
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+{
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+ if (link_speed <= SPEED_1000) {
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+ *active_width = IB_WIDTH_1X;
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+ *active_speed = IB_SPEED_SDR;
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+ } else if (link_speed <= SPEED_10000) {
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+ *active_width = IB_WIDTH_1X;
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+ *active_speed = IB_SPEED_FDR10;
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+ } else if (link_speed <= SPEED_20000) {
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+ *active_width = IB_WIDTH_4X;
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+ *active_speed = IB_SPEED_DDR;
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+ } else if (link_speed <= SPEED_25000) {
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+ *active_width = IB_WIDTH_1X;
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+ *active_speed = IB_SPEED_EDR;
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+ } else if (link_speed <= SPEED_40000) {
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+ *active_width = IB_WIDTH_4X;
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+ *active_speed = IB_SPEED_FDR10;
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+ } else {
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+ *active_width = IB_WIDTH_4X;
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+ *active_speed = IB_SPEED_EDR;
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+ }
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+}
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+
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/**
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* irdma_query_port - get port attributes
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* @ibdev: device pointer from stack
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@@ -90,9 +120,8 @@ static int irdma_query_port(struct ib_device *ibdev, u32 port,
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props->state = IB_PORT_DOWN;
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props->phys_state = IB_PORT_PHYS_STATE_DISABLED;
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}
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-
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- ib_get_eth_speed(ibdev, port, &props->active_speed,
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- &props->active_width);
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+ irdma_get_eth_speed_and_width(SPEED_100000, &props->active_speed,
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+ &props->active_width);
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if (rdma_protocol_roce(ibdev, 1)) {
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props->gid_tbl_len = 32;
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@ -0,0 +1,118 @@
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Thomas Lamprecht <t.lamprecht@proxmox.com>
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Date: Sat, 7 Jan 2023 13:50:22 +0100
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Subject: [PATCH] Revert "gro: add support of (hw)gro packets to gro stack"
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Seems to be the cause of a regression in network performance:
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https://lore.kernel.org/netdev/CAK8fFZ5pzMaw3U1KXgC_OK4shKGsN=HDcR62cfPOuL0umXE1Ww@mail.gmail.com/
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This reverts commit 5eddb24901ee49eee23c0bfce6af2e83fd5679bd.
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Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
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---
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net/core/gro.c | 18 ++++--------------
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net/ipv4/tcp_offload.c | 17 ++---------------
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2 files changed, 6 insertions(+), 29 deletions(-)
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diff --git a/net/core/gro.c b/net/core/gro.c
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index bc9451743307..b4190eb08467 100644
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--- a/net/core/gro.c
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+++ b/net/core/gro.c
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@@ -160,7 +160,6 @@ int skb_gro_receive(struct sk_buff *p, struct sk_buff *skb)
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unsigned int gro_max_size;
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unsigned int new_truesize;
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struct sk_buff *lp;
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- int segs;
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/* pairs with WRITE_ONCE() in netif_set_gro_max_size() */
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gro_max_size = READ_ONCE(p->dev->gro_max_size);
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@@ -176,7 +175,6 @@ int skb_gro_receive(struct sk_buff *p, struct sk_buff *skb)
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return -E2BIG;
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}
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- segs = NAPI_GRO_CB(skb)->count;
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lp = NAPI_GRO_CB(p)->last;
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pinfo = skb_shinfo(lp);
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@@ -267,7 +265,7 @@ int skb_gro_receive(struct sk_buff *p, struct sk_buff *skb)
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lp = p;
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done:
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- NAPI_GRO_CB(p)->count += segs;
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+ NAPI_GRO_CB(p)->count++;
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p->data_len += len;
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p->truesize += delta_truesize;
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p->len += len;
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@@ -498,15 +496,8 @@ static enum gro_result dev_gro_receive(struct napi_struct *napi, struct sk_buff
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BUILD_BUG_ON(!IS_ALIGNED(offsetof(struct napi_gro_cb, zeroed),
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sizeof(u32))); /* Avoid slow unaligned acc */
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*(u32 *)&NAPI_GRO_CB(skb)->zeroed = 0;
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- NAPI_GRO_CB(skb)->flush = skb_has_frag_list(skb);
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+ NAPI_GRO_CB(skb)->flush = skb_is_gso(skb) || skb_has_frag_list(skb);
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NAPI_GRO_CB(skb)->is_atomic = 1;
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- NAPI_GRO_CB(skb)->count = 1;
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- if (unlikely(skb_is_gso(skb))) {
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- NAPI_GRO_CB(skb)->count = skb_shinfo(skb)->gso_segs;
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- /* Only support TCP at the moment. */
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- if (!skb_is_gso_tcp(skb))
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- NAPI_GRO_CB(skb)->flush = 1;
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- }
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/* Setup for GRO checksum validation */
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switch (skb->ip_summed) {
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@@ -554,10 +545,10 @@ static enum gro_result dev_gro_receive(struct napi_struct *napi, struct sk_buff
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else
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gro_list->count++;
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+ NAPI_GRO_CB(skb)->count = 1;
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NAPI_GRO_CB(skb)->age = jiffies;
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NAPI_GRO_CB(skb)->last = skb;
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- if (!skb_is_gso(skb))
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- skb_shinfo(skb)->gso_size = skb_gro_len(skb);
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+ skb_shinfo(skb)->gso_size = skb_gro_len(skb);
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list_add(&skb->list, &gro_list->list);
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ret = GRO_HELD;
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@@ -669,7 +660,6 @@ static void napi_reuse_skb(struct napi_struct *napi, struct sk_buff *skb)
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skb->encapsulation = 0;
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skb_shinfo(skb)->gso_type = 0;
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- skb_shinfo(skb)->gso_size = 0;
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if (unlikely(skb->slow_gro)) {
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skb_orphan(skb);
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skb_ext_reset(skb);
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diff --git a/net/ipv4/tcp_offload.c b/net/ipv4/tcp_offload.c
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index 45dda7889387..a844a0d38482 100644
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--- a/net/ipv4/tcp_offload.c
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+++ b/net/ipv4/tcp_offload.c
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@@ -255,15 +255,7 @@ struct sk_buff *tcp_gro_receive(struct list_head *head, struct sk_buff *skb)
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mss = skb_shinfo(p)->gso_size;
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- /* If skb is a GRO packet, make sure its gso_size matches prior packet mss.
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- * If it is a single frame, do not aggregate it if its length
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- * is bigger than our mss.
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- */
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- if (unlikely(skb_is_gso(skb)))
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- flush |= (mss != skb_shinfo(skb)->gso_size);
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- else
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- flush |= (len - 1) >= mss;
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-
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+ flush |= (len - 1) >= mss;
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flush |= (ntohl(th2->seq) + skb_gro_len(p)) ^ ntohl(th->seq);
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#ifdef CONFIG_TLS_DEVICE
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flush |= p->decrypted ^ skb->decrypted;
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@@ -277,12 +269,7 @@ struct sk_buff *tcp_gro_receive(struct list_head *head, struct sk_buff *skb)
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tcp_flag_word(th2) |= flags & (TCP_FLAG_FIN | TCP_FLAG_PSH);
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out_check_final:
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- /* Force a flush if last segment is smaller than mss. */
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- if (unlikely(skb_is_gso(skb)))
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- flush = len != NAPI_GRO_CB(skb)->count * skb_shinfo(skb)->gso_size;
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- else
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- flush = len < mss;
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-
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+ flush = len < mss;
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flush |= (__force int)(flags & (TCP_FLAG_URG | TCP_FLAG_PSH |
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TCP_FLAG_RST | TCP_FLAG_SYN |
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TCP_FLAG_FIN));
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