From patchwork Fri Apr 4 14:45:54 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Konstantin Taranov X-Patchwork-Id: 14038576 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by smtp.subspace.kernel.org (Postfix) with ESMTP id CFE381F419D; Fri, 4 Apr 2025 14:46:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=13.77.154.182 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743777965; cv=none; b=mW0y5Me1vPh8nipuFGubaRkKaPb8arz4dDQyGKp2K32Luyd9p31nhALy0fUCtD8lNlfbmTTS/lvXwZ5fNhkr9fFBylsL6aiyszbR2VFKtV+x03xZOaK3sjo+AF0lrLjlaxOs3Am9x4riONElHi13rddJXhSBDbrxBpwRhA1ABP0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743777965; c=relaxed/simple; bh=vtUO3I0GfR3soW4psczNy/v5iTEKL5+K9N1+eicoi9M=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=NCPFTp6z0KEjPUiYSE+w43F3mVA6w5dlakb/ln6xurZqRjkgTDZO12Gl++ld9miCnA8IeqgYK6Z3ECv43Gv5BufCfcQXcvss3NGvDAt8oat5ZHlE4nb6Z93laJlcU//wDFXxTjjHMK506t3o4I+vxvkDEsVHvvwhGBK9t/llHsA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com; spf=pass smtp.mailfrom=linux.microsoft.com; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b=GQ6LMU49; arc=none smtp.client-ip=13.77.154.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b="GQ6LMU49" Received: by linux.microsoft.com (Postfix, from userid 1186) id EEA822027E10; Fri, 4 Apr 2025 07:45:55 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com EEA822027E10 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1743777955; bh=FKKQQzJvIk0F8xIfgA7X5Zz753fbLzvsg6P9j7X+2sM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GQ6LMU49zajhWDVDAUM2smqu4cnxFVKPt+1KlMC8/dQZMGh8y41gawsf1PkdYlHey +W0xc6nzsYR9lfrj/wCPXcRvylnw8og3H0ZMaWlAbburm0DXltAPjwS5l88rMrekzd pU9t6SRGL1R2E0MDUY9Slc1MCcyEsa8Dym0rgJbU= From: Konstantin Taranov To: kotaranov@microsoft.com, pabeni@redhat.com, haiyangz@microsoft.com, kys@microsoft.com, edumazet@google.com, kuba@kernel.org, davem@davemloft.net, decui@microsoft.com, wei.liu@kernel.org, longli@microsoft.com, jgg@ziepe.ca, leon@kernel.org Cc: linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH rdma-next 2/3] RDMA/mana_ib: support of the zero based MRs Date: Fri, 4 Apr 2025 07:45:54 -0700 Message-Id: <1743777955-2316-3-git-send-email-kotaranov@linux.microsoft.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1743777955-2316-1-git-send-email-kotaranov@linux.microsoft.com> References: <1743777955-2316-1-git-send-email-kotaranov@linux.microsoft.com> Precedence: bulk X-Mailing-List: linux-rdma@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: From: Konstantin Taranov Add IB_ZERO_BASED to the valid flags and use the corresponding MR creation request for the zero based memory. Signed-off-by: Konstantin Taranov --- drivers/infiniband/hw/mana/mr.c | 24 +++++++++++++++++------- include/net/mana/gdma.h | 11 ++++++++++- 2 files changed, 27 insertions(+), 8 deletions(-) diff --git a/drivers/infiniband/hw/mana/mr.c b/drivers/infiniband/hw/mana/mr.c index e4a9f53..6d974d0 100644 --- a/drivers/infiniband/hw/mana/mr.c +++ b/drivers/infiniband/hw/mana/mr.c @@ -6,7 +6,7 @@ #include "mana_ib.h" #define VALID_MR_FLAGS (IB_ACCESS_LOCAL_WRITE | IB_ACCESS_REMOTE_WRITE | IB_ACCESS_REMOTE_READ |\ - IB_ACCESS_REMOTE_ATOMIC) + IB_ACCESS_REMOTE_ATOMIC | IB_ZERO_BASED) #define VALID_DMA_MR_FLAGS (IB_ACCESS_LOCAL_WRITE) @@ -51,7 +51,10 @@ static int mana_ib_gd_create_mr(struct mana_ib_dev *dev, struct mana_ib_mr *mr, req.gva.virtual_address = mr_params->gva.virtual_address; req.gva.access_flags = mr_params->gva.access_flags; break; - + case GDMA_MR_TYPE_ZBVA: + req.zbva.dma_region_handle = mr_params->zbva.dma_region_handle; + req.zbva.access_flags = mr_params->zbva.access_flags; + break; default: ibdev_dbg(&dev->ib_dev, "invalid param (GDMA_MR_TYPE) passed, type %d\n", @@ -147,11 +150,18 @@ struct ib_mr *mana_ib_reg_user_mr(struct ib_pd *ibpd, u64 start, u64 length, dma_region_handle); mr_params.pd_handle = pd->pd_handle; - mr_params.mr_type = GDMA_MR_TYPE_GVA; - mr_params.gva.dma_region_handle = dma_region_handle; - mr_params.gva.virtual_address = iova; - mr_params.gva.access_flags = - mana_ib_verbs_to_gdma_access_flags(access_flags); + if (access_flags & IB_ZERO_BASED) { + mr_params.mr_type = GDMA_MR_TYPE_ZBVA; + mr_params.zbva.dma_region_handle = dma_region_handle; + mr_params.zbva.access_flags = + mana_ib_verbs_to_gdma_access_flags(access_flags); + } else { + mr_params.mr_type = GDMA_MR_TYPE_GVA; + mr_params.gva.dma_region_handle = dma_region_handle; + mr_params.gva.virtual_address = iova; + mr_params.gva.access_flags = + mana_ib_verbs_to_gdma_access_flags(access_flags); + } err = mana_ib_gd_create_mr(dev, mr, &mr_params); if (err) diff --git a/include/net/mana/gdma.h b/include/net/mana/gdma.h index 50ffbc4..3db506d 100644 --- a/include/net/mana/gdma.h +++ b/include/net/mana/gdma.h @@ -812,6 +812,8 @@ enum gdma_mr_type { * address that is set up in the MST */ GDMA_MR_TYPE_GVA = 2, + /* Guest zero-based address MRs */ + GDMA_MR_TYPE_ZBVA = 4, }; struct gdma_create_mr_params { @@ -823,6 +825,10 @@ struct gdma_create_mr_params { u64 virtual_address; enum gdma_mr_access_flags access_flags; } gva; + struct { + u64 dma_region_handle; + enum gdma_mr_access_flags access_flags; + } zbva; }; }; @@ -838,7 +844,10 @@ struct gdma_create_mr_request { u64 virtual_address; enum gdma_mr_access_flags access_flags; } gva; - + struct { + u64 dma_region_handle; + enum gdma_mr_access_flags access_flags; + } zbva; }; u32 reserved_2; };/* HW DATA */