From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 EB8761A6160; Tue, 30 Jul 2024 16:26:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722356762; cv=none; b=p2I4CUDkg7Z8XiEhf9TkROUfbhNGFHECitnC/mDwfAy10RMw3FL9g9na4hhw6PVcdiO/MnK5uBD7kx/wJHM2KCa1cGDEzMZB6Jm0sfPqKHabSKJY8wLF6AGnEfgqqWA1ChJhuQRDchjz5Ubocnt9FIwoOCeLCuA2qLZoDuceu9w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722356762; c=relaxed/simple; bh=79h+wFfCL9SPdHKrfUGcHopCB3zWsJNRzNf2o1fktUU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=PHcJG9NJTqK0QV/XVKBNhyAmEMOWjn8V+N/+vFf9BS3pQk9IcKf8zq/uCsvWTpEMG77Apr+PHliiGVqgx1Vw7tZFYH83/00sMgLSZ1Oa05bOER1p8Ed7F4CH8/3Uz+ZJIndAAhS9HP07eWQEEjTPUktYk/2R2dVYleq0Ntk2Xo4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=beG3cV/n; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="beG3cV/n" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 74802C32782; Tue, 30 Jul 2024 16:26:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1722356761; bh=79h+wFfCL9SPdHKrfUGcHopCB3zWsJNRzNf2o1fktUU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=beG3cV/ni5rj0c1oeXirX0SpXFvZVdtrSPP138mf7gwHeuf0ZKHNcNHRTcYegiho7 PvD+KK+YAKKKvJzt+Tg9Sa06vKp2eetrYiXNNYcGpsohKRBScu0KZWNsx5OqnYB39g IX/bOrNWT4EVBQoorc62rPyMGSjNAACZ2eVKM8iI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Chengchang Tang , Junxian Huang , Leon Romanovsky , Sasha Levin Subject: [PATCH 6.1 226/440] RDMA/hns: Fix insufficient extend DB for VFs. Date: Tue, 30 Jul 2024 17:47:39 +0200 Message-ID: <20240730151624.687354090@linuxfoundation.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240730151615.753688326@linuxfoundation.org> References: <20240730151615.753688326@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Chengchang Tang [ Upstream commit 0b8e658f70ffd5dc7cda3872fd524d657d4796b7 ] VFs and its PF will share the memory of the extend DB. Currently, the number of extend DB allocated by driver is only enough for PF. This leads to a probability of DB loss and some other problems in scenarios where both PF and VFs use a large number of QPs. Fixes: 6b63597d3540 ("RDMA/hns: Add TSQ link table support") Signed-off-by: Chengchang Tang Signed-off-by: Junxian Huang Link: https://lore.kernel.org/r/20240710133705.896445-8-huangjunxian6@hisilicon.com Signed-off-by: Leon Romanovsky Signed-off-by: Sasha Levin --- drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c index b592f1c1e2f5b..c4521ab66ee45 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -2574,14 +2574,16 @@ static int set_llm_cfg_to_hw(struct hns_roce_dev *hr_dev, static struct hns_roce_link_table * alloc_link_table_buf(struct hns_roce_dev *hr_dev) { + u16 total_sl = hr_dev->caps.sl_num * hr_dev->func_num; struct hns_roce_v2_priv *priv = hr_dev->priv; struct hns_roce_link_table *link_tbl; u32 pg_shift, size, min_size; link_tbl = &priv->ext_llm; pg_shift = hr_dev->caps.llm_buf_pg_sz + PAGE_SHIFT; - size = hr_dev->caps.num_qps * HNS_ROCE_V2_EXT_LLM_ENTRY_SZ; - min_size = HNS_ROCE_EXT_LLM_MIN_PAGES(hr_dev->caps.sl_num) << pg_shift; + size = hr_dev->caps.num_qps * hr_dev->func_num * + HNS_ROCE_V2_EXT_LLM_ENTRY_SZ; + min_size = HNS_ROCE_EXT_LLM_MIN_PAGES(total_sl) << pg_shift; /* Alloc data table */ size = max(size, min_size); -- 2.43.0