From patchwork Wed Oct 19 22:24:02 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Long Li X-Patchwork-Id: 13012384 X-Patchwork-Delegate: kuba@kernel.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 38885C4332F for ; Wed, 19 Oct 2022 22:24:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229682AbiJSWYc (ORCPT ); Wed, 19 Oct 2022 18:24:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34572 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231187AbiJSWY0 (ORCPT ); Wed, 19 Oct 2022 18:24:26 -0400 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 25E262719; Wed, 19 Oct 2022 15:24:23 -0700 (PDT) Received: by linux.microsoft.com (Postfix, from userid 1004) id E508F20FE898; Wed, 19 Oct 2022 15:24:22 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com E508F20FE898 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxonhyperv.com; s=default; t=1666218262; bh=8Z6yW2KqbQl4Wyror+q4zSVQuzt8hLhkxhobys217qM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:Reply-To:From; b=ioL2vpSZnlDz3s0xHQSjrYwE5iIm31aTfiquHiSbCzNcQH9hS0eHF+kUcOCUEIOvE S5abgwupVwDPRkqKtJIp3rs+9d87AO2eqlFCxB9hulj4KZaMXCh+Bm5n8ujmFF1uGx CaKa2VWj6n09PW12Yf7nzV85gb+XCTWlIivwDNgs= From: longli@linuxonhyperv.com To: "K. Y. Srinivasan" , Haiyang Zhang , Stephen Hemminger , Wei Liu , Dexuan Cui , "David S. Miller" , Jakub Kicinski , Paolo Abeni , Jason Gunthorpe , Leon Romanovsky , edumazet@google.com, shiraz.saleem@intel.com, Ajay Sharma Cc: linux-hyperv@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, Long Li Subject: [Patch v8 02/12] net: mana: Record the physical address for doorbell page region Date: Wed, 19 Oct 2022 15:24:02 -0700 Message-Id: <1666218252-32191-3-git-send-email-longli@linuxonhyperv.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1666218252-32191-1-git-send-email-longli@linuxonhyperv.com> References: <1666218252-32191-1-git-send-email-longli@linuxonhyperv.com> Reply-To: longli@microsoft.com Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Long Li For supporting RDMA device with multiple user contexts with their individual doorbell pages, record the start address of doorbell page region for use by the RDMA driver to allocate user context doorbell IDs. Reviewed-by: Dexuan Cui Signed-off-by: Long Li Acked-by: Haiyang Zhang --- Change log: v6: rebased to rdma-next drivers/net/ethernet/microsoft/mana/gdma.h | 2 ++ drivers/net/ethernet/microsoft/mana/gdma_main.c | 4 ++++ 2 files changed, 6 insertions(+) diff --git a/drivers/net/ethernet/microsoft/mana/gdma.h b/drivers/net/ethernet/microsoft/mana/gdma.h index f321a2616d03..72eaec2470c0 100644 --- a/drivers/net/ethernet/microsoft/mana/gdma.h +++ b/drivers/net/ethernet/microsoft/mana/gdma.h @@ -351,9 +351,11 @@ struct gdma_context { u32 test_event_eq_id; bool is_pf; + phys_addr_t bar0_pa; void __iomem *bar0_va; void __iomem *shm_base; void __iomem *db_page_base; + phys_addr_t phys_db_page_base; u32 db_page_size; /* Shared memory chanenl (used to bootstrap HWC) */ diff --git a/drivers/net/ethernet/microsoft/mana/gdma_main.c b/drivers/net/ethernet/microsoft/mana/gdma_main.c index 5f9240182351..0cfe5f15458e 100644 --- a/drivers/net/ethernet/microsoft/mana/gdma_main.c +++ b/drivers/net/ethernet/microsoft/mana/gdma_main.c @@ -44,6 +44,9 @@ static void mana_gd_init_vf_regs(struct pci_dev *pdev) gc->db_page_base = gc->bar0_va + mana_gd_r64(gc, GDMA_REG_DB_PAGE_OFFSET); + gc->phys_db_page_base = gc->bar0_pa + + mana_gd_r64(gc, GDMA_REG_DB_PAGE_OFFSET); + gc->shm_base = gc->bar0_va + mana_gd_r64(gc, GDMA_REG_SHM_OFFSET); } @@ -1367,6 +1370,7 @@ static int mana_gd_probe(struct pci_dev *pdev, const struct pci_device_id *ent) mutex_init(&gc->eq_test_event_mutex); pci_set_drvdata(pdev, gc); + gc->bar0_pa = pci_resource_start(pdev, 0); bar0_va = pci_iomap(pdev, bar, 0); if (!bar0_va)