From patchwork Wed Sep 21 01:22:22 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Long Li X-Patchwork-Id: 12982933 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 7E94BC6FA93 for ; Wed, 21 Sep 2022 01:23:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231321AbiIUBXH (ORCPT ); Tue, 20 Sep 2022 21:23:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34210 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231320AbiIUBXD (ORCPT ); Tue, 20 Sep 2022 21:23:03 -0400 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 91A657B1DF; Tue, 20 Sep 2022 18:22:59 -0700 (PDT) Received: by linux.microsoft.com (Postfix, from userid 1004) id 9EC4920B929C; Tue, 20 Sep 2022 18:22:58 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com 9EC4920B929C DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxonhyperv.com; s=default; t=1663723378; bh=8Z6yW2KqbQl4Wyror+q4zSVQuzt8hLhkxhobys217qM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:Reply-To:From; b=Aj/JFqTEjtU136yAKnA7RohurT5WdCYs8MydhMlE3md78mbJVWw2OmrGW1etyzAb3 gk8n02lf8WEdA2U0z6dQYSl6gS4o9U7+NcDor7TSFF6DLl3L9bH3H0H7WK734hwoqi qTVyTsokP04Orsjtd5yyUPuQNX9Y3rML5lnHUR80= 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 v6 02/12] net: mana: Record the physical address for doorbell page region Date: Tue, 20 Sep 2022 18:22:22 -0700 Message-Id: <1663723352-598-3-git-send-email-longli@linuxonhyperv.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1663723352-598-1-git-send-email-longli@linuxonhyperv.com> References: <1663723352-598-1-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)