From nobody Mon Jun 15 19:01:46 2026 Received: from out-182.mta1.migadu.com (out-182.mta1.migadu.com [95.215.58.182]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 74BF47DA66 for ; Mon, 13 Apr 2026 06:38:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.182 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776062323; cv=none; b=n5N2aF0fXFCdtG6TKi6tjuaJsD8yqbi4+Gw11PSmXn6GIajJv09q5W9Sn2S5L/KsjswpyiXjACW9Au0Hfye8sCFPlJa8q+aKZqsSfjX8kofCJ9RLWJTuTLWUJyO3mVqRO/dJaZAMxucIOTrtnsb4K9rkEjVLvxJYlU9iw4lSDdg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776062323; c=relaxed/simple; bh=cw4GjcWsuYnUl046fx3PRCDnY8sVbCME0H9EzD/IhbA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=qZfzTqXnCdeQdkIGqXqBgj0Gerxp7U6l9TEbsktioAwZJTxym0jEcjeseBrbs1Dphx5ynUE/qy5QDg5RMijFRYJGE7KZ6g0R5JRG6y55WEHaYVf+PDza3iz1toWIfqOHr/bn1NmrDLIqhV7ndXZbUCg6Tp8JGNppaNQ8qvnoJ/A= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=iAdsajVO; arc=none smtp.client-ip=95.215.58.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="iAdsajVO" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1776062319; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=JRFy4q6+w0PLU2dSrVBHct706edyWSjeEhmFgbFlE9k=; b=iAdsajVOioTkx8Wb9lSjgzgLR9DiIont54yenWa/ZK01X5+26bJRD08p7t6kaH18xlemyL QMSy1PAiA5+SWRqAKHU02gtr3Msdp+YRn+/dAzrGFEgE8vpQRWSOhmazTMgnyWQvQKWBJf DWi9vB2StWnAJVnyafgSV1DRc//jngk= From: zhenwei pi To: linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org Cc: zyjzyj2000@gmail.com, jgg@ziepe.ca, leon@kernel.org, zhenwei pi Subject: [PATCH v6 1/4] RDMA/rxe: remove rxe_ib_device_get_netdev() and RXE_PORT Date: Mon, 13 Apr 2026 14:38:14 +0800 Message-ID: <20260413063817.636423-2-zhenwei.pi@linux.dev> In-Reply-To: <20260413063817.636423-1-zhenwei.pi@linux.dev> References: <20260413063817.636423-1-zhenwei.pi@linux.dev> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Migadu-Flow: FLOW_OUT Content-Type: text/plain; charset="utf-8" Suggested by Leon, remove the rxe_ib_device_get_netdev() wrapper and the RXE_PORT definition. These additions do not improve readability, and RXE has always had only a single port. Signed-off-by: zhenwei pi --- drivers/infiniband/sw/rxe/rxe_mcast.c | 4 ++-- drivers/infiniband/sw/rxe/rxe_net.c | 7 +++---- drivers/infiniband/sw/rxe/rxe_verbs.c | 4 ++-- drivers/infiniband/sw/rxe/rxe_verbs.h | 6 ------ 4 files changed, 7 insertions(+), 14 deletions(-) diff --git a/drivers/infiniband/sw/rxe/rxe_mcast.c b/drivers/infiniband/sw/= rxe/rxe_mcast.c index 5cad72073eca..acd03bd87794 100644 --- a/drivers/infiniband/sw/rxe/rxe_mcast.c +++ b/drivers/infiniband/sw/rxe/rxe_mcast.c @@ -34,7 +34,7 @@ static int rxe_mcast_add(struct rxe_dev *rxe, union ib_gi= d *mgid) struct net_device *ndev; int ret; =20 - ndev =3D rxe_ib_device_get_netdev(&rxe->ib_dev); + ndev =3D ib_device_get_netdev(&rxe->ib_dev, 1); if (!ndev) return -ENODEV; =20 @@ -59,7 +59,7 @@ static int rxe_mcast_del(struct rxe_dev *rxe, union ib_gi= d *mgid) struct net_device *ndev; int ret; =20 - ndev =3D rxe_ib_device_get_netdev(&rxe->ib_dev); + ndev =3D ib_device_get_netdev(&rxe->ib_dev, 1); if (!ndev) return -ENODEV; =20 diff --git a/drivers/infiniband/sw/rxe/rxe_net.c b/drivers/infiniband/sw/rx= e/rxe_net.c index 211bd3000acc..6621d01ac32d 100644 --- a/drivers/infiniband/sw/rxe/rxe_net.c +++ b/drivers/infiniband/sw/rxe/rxe_net.c @@ -602,7 +602,7 @@ const char *rxe_parent_name(struct rxe_dev *rxe, unsign= ed int port_num) struct net_device *ndev; char *ndev_name; =20 - ndev =3D rxe_ib_device_get_netdev(&rxe->ib_dev); + ndev =3D ib_device_get_netdev(&rxe->ib_dev, 1); if (!ndev) return NULL; ndev_name =3D ndev->name; @@ -646,12 +646,11 @@ static void rxe_sock_put(struct sock *sk, =20 void rxe_net_del(struct ib_device *dev) { - struct rxe_dev *rxe =3D container_of(dev, struct rxe_dev, ib_dev); struct net_device *ndev; struct sock *sk; struct net *net; =20 - ndev =3D rxe_ib_device_get_netdev(&rxe->ib_dev); + ndev =3D ib_device_get_netdev(dev, 1); if (!ndev) return; =20 @@ -699,7 +698,7 @@ void rxe_set_port_state(struct rxe_dev *rxe) { struct net_device *ndev; =20 - ndev =3D rxe_ib_device_get_netdev(&rxe->ib_dev); + ndev =3D ib_device_get_netdev(&rxe->ib_dev, 1); if (!ndev) return; =20 diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.c b/drivers/infiniband/sw/= rxe/rxe_verbs.c index 4d4891dc2884..eb17b6086d5e 100644 --- a/drivers/infiniband/sw/rxe/rxe_verbs.c +++ b/drivers/infiniband/sw/rxe/rxe_verbs.c @@ -50,7 +50,7 @@ static int rxe_query_port(struct ib_device *ibdev, goto err_out; } =20 - ndev =3D rxe_ib_device_get_netdev(ibdev); + ndev =3D ib_device_get_netdev(ibdev, 1); if (!ndev) { err =3D -ENODEV; goto err_out; @@ -1441,7 +1441,7 @@ static int rxe_enable_driver(struct ib_device *ib_dev) struct rxe_dev *rxe =3D container_of(ib_dev, struct rxe_dev, ib_dev); struct net_device *ndev; =20 - ndev =3D rxe_ib_device_get_netdev(ib_dev); + ndev =3D ib_device_get_netdev(ib_dev, 1); if (!ndev) return -ENODEV; =20 diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.h b/drivers/infiniband/sw/= rxe/rxe_verbs.h index d92f80d16f78..e800545d1046 100644 --- a/drivers/infiniband/sw/rxe/rxe_verbs.h +++ b/drivers/infiniband/sw/rxe/rxe_verbs.h @@ -415,7 +415,6 @@ struct rxe_port { u32 qp_gsi_index; }; =20 -#define RXE_PORT 1 struct rxe_dev { struct ib_device ib_dev; struct ib_device_attr attr; @@ -451,11 +450,6 @@ struct rxe_dev { struct rxe_port port; }; =20 -static inline struct net_device *rxe_ib_device_get_netdev(struct ib_device= *dev) -{ - return ib_device_get_netdev(dev, RXE_PORT); -} - static inline void rxe_counter_inc(struct rxe_dev *rxe, enum rxe_counters = index) { atomic64_inc(&rxe->stats_counters[index]); --=20 2.43.0 From nobody Mon Jun 15 19:01:46 2026 Received: from out-178.mta1.migadu.com (out-178.mta1.migadu.com [95.215.58.178]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4919839281E for ; Mon, 13 Apr 2026 06:38:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.178 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776062327; cv=none; b=RP27bd9bNj4cnZMjZ0nKeMmEJMlt9j2R2vVMF89fKULsZ77Qazt/Rdf+Vbff13UcCuArRLS8gPSo4N5dp48SbCqHbysUrIxEDn1bK1KnmGMK1BxRt0RK5vUMMk+1rGyChM6RAdULTUsoNI0nkx/fpJecuFyV97ZTNCR1NN1aYmw= ARC-Message-Signature: i=1; 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DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1776062323; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=khPAm7yRKyvsyjet7XrXUNeDJARjrHbHUKpjHIDa6EI=; b=C4+LocfMIb50G4BOWfJpMZH7hJ97+QTpJZ98v+ZVtH+9UJrsuQZfE/GfAUlFmKqmwWjE1e BM8Om0ig8u0RE/r6XtZkYPYxRXg5410ufZewJMHWcnHcaqQOTqZyY5OOSo9iKBZg27TxcP PQveuiaMsFe418Sf+d8AlycduR87obw= From: zhenwei pi To: linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org Cc: zyjzyj2000@gmail.com, jgg@ziepe.ca, leon@kernel.org, zhenwei pi Subject: [PATCH v6 2/4] RDMA/rxe: add SENT/RCVD bytes Date: Mon, 13 Apr 2026 14:38:15 +0800 Message-ID: <20260413063817.636423-3-zhenwei.pi@linux.dev> In-Reply-To: <20260413063817.636423-1-zhenwei.pi@linux.dev> References: <20260413063817.636423-1-zhenwei.pi@linux.dev> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Migadu-Flow: FLOW_OUT Content-Type: text/plain; charset="utf-8" There is a lack of sent/received counter in bytes. Signed-off-by: zhenwei pi --- drivers/infiniband/sw/rxe/rxe_hw_counters.c | 2 ++ drivers/infiniband/sw/rxe/rxe_hw_counters.h | 2 ++ drivers/infiniband/sw/rxe/rxe_net.c | 2 ++ drivers/infiniband/sw/rxe/rxe_recv.c | 2 ++ drivers/infiniband/sw/rxe/rxe_verbs.h | 6 ++++++ 5 files changed, 14 insertions(+) diff --git a/drivers/infiniband/sw/rxe/rxe_hw_counters.c b/drivers/infiniba= nd/sw/rxe/rxe_hw_counters.c index 437917a7d8f2..17edaa9a9b9b 100644 --- a/drivers/infiniband/sw/rxe/rxe_hw_counters.c +++ b/drivers/infiniband/sw/rxe/rxe_hw_counters.c @@ -22,6 +22,8 @@ static const struct rdma_stat_desc rxe_counter_descs[] = =3D { [RXE_CNT_LINK_DOWNED].name =3D "link_downed", [RXE_CNT_RDMA_SEND].name =3D "rdma_sends", [RXE_CNT_RDMA_RECV].name =3D "rdma_recvs", + [RXE_CNT_SENT_BYTES].name =3D "sent_bytes", + [RXE_CNT_RCVD_BYTES].name =3D "rcvd_bytes", }; =20 int rxe_ib_get_hw_stats(struct ib_device *ibdev, diff --git a/drivers/infiniband/sw/rxe/rxe_hw_counters.h b/drivers/infiniba= nd/sw/rxe/rxe_hw_counters.h index 051f9e1c3852..01b355103cbc 100644 --- a/drivers/infiniband/sw/rxe/rxe_hw_counters.h +++ b/drivers/infiniband/sw/rxe/rxe_hw_counters.h @@ -26,6 +26,8 @@ enum rxe_counters { RXE_CNT_LINK_DOWNED, RXE_CNT_RDMA_SEND, RXE_CNT_RDMA_RECV, + RXE_CNT_SENT_BYTES, + RXE_CNT_RCVD_BYTES, RXE_NUM_OF_COUNTERS }; =20 diff --git a/drivers/infiniband/sw/rxe/rxe_net.c b/drivers/infiniband/sw/rx= e/rxe_net.c index 6621d01ac32d..86660031ffa2 100644 --- a/drivers/infiniband/sw/rxe/rxe_net.c +++ b/drivers/infiniband/sw/rxe/rxe_net.c @@ -503,6 +503,7 @@ int rxe_xmit_packet(struct rxe_qp *qp, struct rxe_pkt_i= nfo *pkt, int err; int is_request =3D pkt->mask & RXE_REQ_MASK; struct rxe_dev *rxe =3D to_rdev(qp->ibqp.device); + unsigned int skblen =3D skb->len; unsigned long flags; =20 spin_lock_irqsave(&qp->state_lock, flags); @@ -526,6 +527,7 @@ int rxe_xmit_packet(struct rxe_qp *qp, struct rxe_pkt_i= nfo *pkt, } =20 rxe_counter_inc(rxe, RXE_CNT_SENT_PKTS); + rxe_counter_add(rxe, RXE_CNT_SENT_BYTES, skblen); goto done; =20 drop: diff --git a/drivers/infiniband/sw/rxe/rxe_recv.c b/drivers/infiniband/sw/r= xe/rxe_recv.c index 5861e4244049..e7bab89e7d8d 100644 --- a/drivers/infiniband/sw/rxe/rxe_recv.c +++ b/drivers/infiniband/sw/rxe/rxe_recv.c @@ -318,6 +318,7 @@ void rxe_rcv(struct sk_buff *skb) int err; struct rxe_pkt_info *pkt =3D SKB_TO_PKT(skb); struct rxe_dev *rxe =3D pkt->rxe; + unsigned int skblen =3D skb->len - skb_network_offset(skb); =20 if (unlikely(skb->len < RXE_BTH_BYTES)) goto drop; @@ -341,6 +342,7 @@ void rxe_rcv(struct sk_buff *skb) if (unlikely(err)) goto drop; =20 + rxe_counter_add(rxe, RXE_CNT_RCVD_BYTES, skblen); rxe_counter_inc(rxe, RXE_CNT_RCVD_PKTS); =20 if (unlikely(bth_qpn(pkt) =3D=3D IB_MULTICAST_QPN)) diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.h b/drivers/infiniband/sw/= rxe/rxe_verbs.h index e800545d1046..0f5ffd94643f 100644 --- a/drivers/infiniband/sw/rxe/rxe_verbs.h +++ b/drivers/infiniband/sw/rxe/rxe_verbs.h @@ -455,6 +455,12 @@ static inline void rxe_counter_inc(struct rxe_dev *rxe= , enum rxe_counters index) atomic64_inc(&rxe->stats_counters[index]); } =20 +static inline void rxe_counter_add(struct rxe_dev *rxe, enum rxe_counters = index, + s64 val) +{ + atomic64_add(val, &rxe->stats_counters[index]); +} + static inline struct rxe_dev *to_rdev(struct ib_device *dev) { return dev ? container_of(dev, struct rxe_dev, ib_dev) : NULL; --=20 2.43.0 From nobody Mon Jun 15 19:01:46 2026 Received: from out-187.mta1.migadu.com (out-187.mta1.migadu.com [95.215.58.187]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9780E7DA66 for ; Mon, 13 Apr 2026 06:38:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.187 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776062331; cv=none; b=GCGcs4o5zzqaGK5VVA16L+ouNJadkAby/eFvotLxd/SswOdoJkEA/AFAgWVn3DSMpd15HF9lunM0BaZNW+9J7WqUGs9kS4FtPKK7ZC1tOXXmCNd+a9mQLlPILs93ZYFYLeNL+/g9N1kdB+ZHjqMeC+BeMirBs9aItZ+XwuxVmuQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776062331; c=relaxed/simple; bh=gG44iXHx9nTcl722pxo/EULpV1wt9L9h8ugZHQSema4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=OrjwT+SbACfyv48XPyuhtU/lX4560QETvmWh64f8/FD3r8xGTlTzF1pQbXv0pSG/yiQ/txhHkMBfU5GWCociWukHS26smJXtWU4UbuNGWTUlc+hy5w51oSLFJOgdu3iPs48UXXTnhndSIakkx97kF/oUMJEbCjXZjC5pl+hlW/Y= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=MIu5Gfyy; arc=none smtp.client-ip=95.215.58.187 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="MIu5Gfyy" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1776062326; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=jpPita2qv7oC8Q5RczDZc9Ulot3JW1NrQ3aoE//GC1c=; b=MIu5GfyyRopAnafMFGFM1oMJVVnKHoRE4xTLbCV6w1HuVT/FiyRFhffYaoHuwy1+qNnzuo 2Xt0AIjTFR8llWuwPRC3+GoDpL7fPWrHXgVLKtXbkp0vCimBg0bd+c2h4hDE/OQJLD6IiX IsxaJW+uPmYaP5h7Lh0UaGQg7zD+F4U= From: zhenwei pi To: linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org Cc: zyjzyj2000@gmail.com, jgg@ziepe.ca, leon@kernel.org, zhenwei pi Subject: [PATCH v6 3/4] RDMA/rxe: support perf mgmt GET method Date: Mon, 13 Apr 2026 14:38:16 +0800 Message-ID: <20260413063817.636423-4-zhenwei.pi@linux.dev> In-Reply-To: <20260413063817.636423-1-zhenwei.pi@linux.dev> References: <20260413063817.636423-1-zhenwei.pi@linux.dev> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Migadu-Flow: FLOW_OUT Content-Type: text/plain; charset="utf-8" In RXE, hardware counters are already supported, but not in a standardized manner. For instance, user-space monitoring tools like atop only read from the *counters* directory. Therefore, it is necessary to add perf management support to RXE. Also use rxe_counter_get instead of raw atomic64_read in hw-counters. Signed-off-by: zhenwei pi --- drivers/infiniband/sw/rxe/Makefile | 1 + drivers/infiniband/sw/rxe/rxe_loc.h | 6 ++ drivers/infiniband/sw/rxe/rxe_mad.c | 101 ++++++++++++++++++++++++++ drivers/infiniband/sw/rxe/rxe_verbs.c | 1 + 4 files changed, 109 insertions(+) create mode 100644 drivers/infiniband/sw/rxe/rxe_mad.c diff --git a/drivers/infiniband/sw/rxe/Makefile b/drivers/infiniband/sw/rxe= /Makefile index 3977f4f13258..e097c1ca1874 100644 --- a/drivers/infiniband/sw/rxe/Makefile +++ b/drivers/infiniband/sw/rxe/Makefile @@ -23,6 +23,7 @@ rdma_rxe-y :=3D \ rxe_task.o \ rxe_net.o \ rxe_hw_counters.o \ + rxe_mad.o \ rxe_ns.o =20 rdma_rxe-$(CONFIG_INFINIBAND_ON_DEMAND_PAGING) +=3D rxe_odp.o diff --git a/drivers/infiniband/sw/rxe/rxe_loc.h b/drivers/infiniband/sw/rx= e/rxe_loc.h index e095c12699cb..64d636bf80fd 100644 --- a/drivers/infiniband/sw/rxe/rxe_loc.h +++ b/drivers/infiniband/sw/rxe/rxe_loc.h @@ -242,4 +242,10 @@ static inline int rxe_ib_advise_mr(struct ib_pd *pd, =20 #endif /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */ =20 +/* rxe-mad.c */ +int rxe_process_mad(struct ib_device *ibdev, int mad_flags, u32 port_num, + const struct ib_wc *in_wc, const struct ib_grh *in_grh, + const struct ib_mad *in, struct ib_mad *out, + size_t *out_mad_size, u16 *out_mad_pkey_index); + #endif /* RXE_LOC_H */ diff --git a/drivers/infiniband/sw/rxe/rxe_mad.c b/drivers/infiniband/sw/rx= e/rxe_mad.c new file mode 100644 index 000000000000..d54ee49e225e --- /dev/null +++ b/drivers/infiniband/sw/rxe/rxe_mad.c @@ -0,0 +1,101 @@ +// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB +/* + * Copyright (c) 2026 zhenwei pi + */ + +#include +#include "rxe.h" +#include "rxe_hw_counters.h" + +static int rxe_get_pma_info(struct ib_mad *out) +{ + struct ib_class_port_info cpi =3D {}; + + cpi.capability_mask =3D IB_PMA_CLASS_CAP_EXT_WIDTH; + memcpy((out->data + 40), &cpi, sizeof(cpi)); + + return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY; +} + +static int rxe_get_pma_counters(struct rxe_dev *rxe, struct ib_mad *out) +{ + struct ib_pma_portcounters *pma_cnt =3D (struct ib_pma_portcounters *)(ou= t->data + 40); + s64 val; + + /* IBA release 1.8, 16.1.3.5: During operation, instead of overflowing, t= hey shall stop + * at all ones. + */ + val =3D atomic64_read(&rxe->stats_counters[RXE_CNT_LINK_DOWNED]); + if (val > U8_MAX) + pma_cnt->link_downed_counter =3D U8_MAX; + else + pma_cnt->link_downed_counter =3D (u8)val; + + return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY; +} + +static int rxe_get_pma_counters_ext(struct rxe_dev *rxe, struct ib_mad *ou= t) +{ + struct ib_pma_portcounters_ext *pma_cnt_ext =3D + (struct ib_pma_portcounters_ext *)(out->data + 40); + s64 val; + + val =3D atomic64_read(&rxe->stats_counters[RXE_CNT_SENT_BYTES]); + pma_cnt_ext->port_xmit_data =3D cpu_to_be64(val >> 2); + + val =3D atomic64_read(&rxe->stats_counters[RXE_CNT_RCVD_BYTES]); + pma_cnt_ext->port_rcv_data =3D cpu_to_be64(val >> 2); + + val =3D atomic64_read(&rxe->stats_counters[RXE_CNT_SENT_PKTS]); + pma_cnt_ext->port_xmit_packets =3D cpu_to_be64(val); + + val =3D atomic64_read(&rxe->stats_counters[RXE_CNT_RCVD_PKTS]); + pma_cnt_ext->port_rcv_packets =3D cpu_to_be64(val); + + return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY; +} + +static int rxe_get_perf_mgmt(struct rxe_dev *rxe, const struct ib_mad *in,= struct ib_mad *out) +{ + switch (in->mad_hdr.attr_id) { + case IB_PMA_CLASS_PORT_INFO: + return rxe_get_pma_info(out); + + case IB_PMA_PORT_COUNTERS: + return rxe_get_pma_counters(rxe, out); + + case IB_PMA_PORT_COUNTERS_EXT: + return rxe_get_pma_counters_ext(rxe, out); + + default: + out->mad_hdr.status =3D cpu_to_be16(IB_MGMT_MAD_STATUS_UNSUPPORTED_METHO= D_ATTRIB); + return IB_MAD_RESULT_SUCCESS; + } +} + +int rxe_process_mad(struct ib_device *ibdev, int mad_flags, u32 port_num, + const struct ib_wc *in_wc, const struct ib_grh *in_grh, + const struct ib_mad *in, struct ib_mad *out, + size_t *out_mad_size, u16 *out_mad_pkey_index) +{ + struct rxe_dev *rxe =3D to_rdev(ibdev); + u8 mgmt_class =3D in->mad_hdr.mgmt_class; + u8 method =3D in->mad_hdr.method; + + if (port_num !=3D 1) + return IB_MAD_RESULT_FAILURE; + + memset(out, 0, sizeof(*out)); + switch (mgmt_class) { + case IB_MGMT_CLASS_PERF_MGMT: + if (method =3D=3D IB_MGMT_METHOD_GET) + return rxe_get_perf_mgmt(rxe, in, out); + break; + + default: + out->mad_hdr.status =3D cpu_to_be16(IB_MGMT_MAD_STATUS_UNSUPPORTED_METHO= D); + return IB_MAD_RESULT_SUCCESS; + } + + return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY; +} diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.c b/drivers/infiniband/sw/= rxe/rxe_verbs.c index eb17b6086d5e..8edd4dd1f031 100644 --- a/drivers/infiniband/sw/rxe/rxe_verbs.c +++ b/drivers/infiniband/sw/rxe/rxe_verbs.c @@ -1496,6 +1496,7 @@ static const struct ib_device_ops rxe_dev_ops =3D { .post_recv =3D rxe_post_recv, .post_send =3D rxe_post_send, .post_srq_recv =3D rxe_post_srq_recv, + .process_mad =3D rxe_process_mad, .query_ah =3D rxe_query_ah, .query_device =3D rxe_query_device, .query_pkey =3D rxe_query_pkey, --=20 2.43.0 From nobody Mon Jun 15 19:01:46 2026 Received: from out-170.mta1.migadu.com (out-170.mta1.migadu.com [95.215.58.170]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3FF323FBA7 for ; Mon, 13 Apr 2026 06:38:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.170 ARC-Seal: i=1; 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DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1776062331; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=lI68vetGwZFB9nsMKM6FXIompXfL3fZ9cT5624ShDFI=; b=J//CGR5SV2bKavackYnDApA4OtPFjMF0oUdw2t8/8a19K7jiad1dybJRRd99kfZmxsH6i1 06/GMReLGAvBX4ULY4CWxSjvtqFF+kdD8VMvTYVJ7CdhEhSRZWNuqur15Y4bfQTy3EbRf9 HffTjqjSoOEKWdkADi56jspgAU/HFDw= From: zhenwei pi To: linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org Cc: zyjzyj2000@gmail.com, jgg@ziepe.ca, leon@kernel.org, Zhu Yanjun Subject: [PATCH v6 4/4] selftest/rxe: Add selftests for perf Date: Mon, 13 Apr 2026 14:38:17 +0800 Message-ID: <20260413063817.636423-5-zhenwei.pi@linux.dev> In-Reply-To: <20260413063817.636423-1-zhenwei.pi@linux.dev> References: <20260413063817.636423-1-zhenwei.pi@linux.dev> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Migadu-Flow: FLOW_OUT Content-Type: text/plain; charset="utf-8" From: Zhu Yanjun Create a virtual TUN net device with RXE support, then run rping server and client to invoke networking packets, finally compare both *sent_bytes* and *rcvd_bytes* of such device. Signed-off-by: Zhu Yanjun --- tools/testing/selftests/rdma/Makefile | 3 +- .../selftests/rdma/rxe_sent_rcvd_bytes.sh | 75 +++++++++++++++++++ 2 files changed, 77 insertions(+), 1 deletion(-) create mode 100755 tools/testing/selftests/rdma/rxe_sent_rcvd_bytes.sh diff --git a/tools/testing/selftests/rdma/Makefile b/tools/testing/selftest= s/rdma/Makefile index 7dd7cba7a73c..07af7f15c1bf 100644 --- a/tools/testing/selftests/rdma/Makefile +++ b/tools/testing/selftests/rdma/Makefile @@ -2,6 +2,7 @@ TEST_PROGS :=3D rxe_rping_between_netns.sh \ rxe_ipv6.sh \ rxe_socket_with_netns.sh \ - rxe_test_NETDEV_UNREGISTER.sh + rxe_test_NETDEV_UNREGISTER.sh \ + rxe_sent_rcvd_bytes.sh =20 include ../lib.mk diff --git a/tools/testing/selftests/rdma/rxe_sent_rcvd_bytes.sh b/tools/te= sting/selftests/rdma/rxe_sent_rcvd_bytes.sh new file mode 100755 index 000000000000..1375bd57048b --- /dev/null +++ b/tools/testing/selftests/rdma/rxe_sent_rcvd_bytes.sh @@ -0,0 +1,75 @@ +#!/bin/bash + +# Configuration +PORT=3D4791 +MODS=3D("tun" "rdma_rxe") + +exec > /dev/null + +# --- Helper: Cleanup Routine --- +cleanup() { + echo "Cleaning up resources..." + rdma link del rxe0 2>/dev/null + ip link del tun0 2>/dev/null + for m in "${MODS[@]}"; do modprobe -r "$m" 2>/dev/null; done +} + +# Ensure cleanup runs on script exit or interrupt +trap cleanup EXIT + +# --- Phase 1: Environment Check --- +if [[ $EUID -ne 0 ]]; then + echo "Error: This script must be run as root." + exit 1 +fi + +for m in "${MODS[@]}"; do + modprobe "$m" || { echo "Error: Failed to load $m"; exit 1; } +done + +# --- Phase 2: Create Interfaces & RXE Links --- +echo "Creating tun0 (1.1.1.1) and rxe0..." +ip tuntap add mode tun tun0 +ip addr add 1.1.1.1/24 dev tun0 +ip link set tun0 up +rdma link add rxe0 type rxe netdev tun0 + +# Verify port 4791 is listening +if ! ss -Huln sport =3D :$PORT | grep -q ":$PORT"; then + echo "Error: UDP port $PORT not found after rxe0 creation" + exit 1 +fi + +orig_s=3D`cat /sys/class/infiniband/rxe0/ports/1/hw_counters/sent_bytes` +orig_r=3D`cat /sys/class/infiniband/rxe0/ports/1/hw_counters/rcvd_bytes` + +rping -s -a 1.1.1.1 -C 3 -v & +sleep 1 +rping -c -a 1.1.1.1 -C 3 -d -v + +new_s=3D`cat /sys/class/infiniband/rxe0/ports/1/hw_counters/sent_bytes` +new_r=3D`cat /sys/class/infiniband/rxe0/ports/1/hw_counters/rcvd_bytes` + +echo sent $new_s $orig_s +echo rcvd $new_r $orig_r + +result0=3D$((new_s - orig_s)) +result1=3D$((new_r - orig_r)) + +if [ $result0 !=3D $result1 ]; then + echo "Error: sent and rcvd bytes different" + echo $result0 + echo $result1 + exit 1 +fi + +echo "Deleting rxe0..." +rdma link del rxe0 + +# Port should now be gone +if ss -Huln sport =3D :$PORT | grep -q ":$PORT"; then + echo "Error: UDP port $PORT still exists after all links deleted" + exit 1 +fi + +echo "Test passed successfully." --=20 2.43.0