From patchwork Thu Mar 3 14:02:30 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sreekanth Reddy X-Patchwork-Id: 12767470 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 A05A6C433EF for ; Thu, 3 Mar 2022 13:52:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233772AbiCCNxE (ORCPT ); Thu, 3 Mar 2022 08:53:04 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35404 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230384AbiCCNxE (ORCPT ); Thu, 3 Mar 2022 08:53:04 -0500 Received: from mail-pj1-x1034.google.com (mail-pj1-x1034.google.com [IPv6:2607:f8b0:4864:20::1034]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6A19E1795DC for ; Thu, 3 Mar 2022 05:52:18 -0800 (PST) Received: by mail-pj1-x1034.google.com with SMTP id bx5so4629872pjb.3 for ; Thu, 03 Mar 2022 05:52:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; h=from:to:cc:subject:date:message-id:mime-version; bh=athXeL9enq5NDZ2c8XIOUaCPv0/mTgSdb3Eh7gkk5OI=; b=NhSd7RGEgJFvniyppuWF7xFSTMKP1j7HogVSLq6TYX4OXtCbkImxUrn/qwjcWv/kRn v2N+R5FVws9uyR9z30qEGL3GnjRWkAsbhvQGFUyfNcRYYCIgSgRdsEOPDqFJXK1a3RGJ l0ULWQHo/mYkX/s4rI32/jzh3cpXHbGqPtbMk= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version; bh=athXeL9enq5NDZ2c8XIOUaCPv0/mTgSdb3Eh7gkk5OI=; b=Ty4ddtrjUaZFblC30VqL2HVZDt/xpOgTid6rDzbW2GFBpOcAxzIHGWR70Bn63vCe5c egFkALZCP3KVmmhO2DGA7J8gYlrcdCuB3akF2rHij+tQphc7XkBF4oTyYSgu+7ayUIoZ 4SH0k4h8Si7Sv8mRWMzszARNrWxrc/9vTUOVywgwkmd9aZ1C7Lb0aCfBbXSk72tfzDnd TbIWM4MXG4jpQPJEc1kmIGzhFbfVtw5bL0GBbpcxeSc3Js2HEjW3XWZL5ZJUbi5GEoAn jxLKTjw35MbmzbiAbliaJbfAh7SjA7ciSooNEL+GyXdpPwXbnttif82CQ24XPd3WvXSG hzSA== X-Gm-Message-State: AOAM533q6NyNkLb1pb+v5ioL27H3iZn+8lH4CUaxrzAFD801mrSVEYnn iZs/cVQVWNjPfhOe1kxcrPjUhoiJC3cVuDL5tvN7qKxZyFCrBGpj4cIXTG/aeRfSJhOY/Y3hYFG rbH5tvWRZZqMVeAVXcT55RttA/0cxoEcHUPx7F/Avk5qUPRnJ73Uxe7dcj6Un5x38zOOakhrq4y eUIvr/emXgLLo= X-Google-Smtp-Source: ABdhPJwduJDi9rzsgU6fSSckuTpDAPjQxLuSyxq41Mm4OBnCMdfl6T2xe0AWirkqP/G5jKn0dec8ZQ== X-Received: by 2002:a17:90a:bf86:b0:1bd:6057:b77c with SMTP id d6-20020a17090abf8600b001bd6057b77cmr5418470pjs.72.1646315537343; Thu, 03 Mar 2022 05:52:17 -0800 (PST) Received: from dhcp-10-123-20-36.dhcp.broadcom.net ([192.19.234.250]) by smtp.gmail.com with ESMTPSA id i128-20020a626d86000000b004f3f2929d7asm2579757pfc.217.2022.03.03.05.52.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 03 Mar 2022 05:52:16 -0800 (PST) From: Sreekanth Reddy To: linux-scsi@vger.kernel.org Cc: martin.petersen@oracle.com, Sreekanth Reddy Subject: [PATCH] mpt3sas: Fix incorrect 4gb boundary check Date: Thu, 3 Mar 2022 19:32:30 +0530 Message-Id: <20220303140230.13098-1-sreekanth.reddy@broadcom.com> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Driver has to do a 4gb boundary check using the pool's dma address instead of using a virtual address. Fixes: d6adc251dd2f("mpt3sas: Force PCIe scatterlist allocations to be within same 4 GB region") Signed-off-by: Sreekanth Reddy --- drivers/scsi/mpt3sas/mpt3sas_base.c | 25 ++++++++++++------------- 1 file changed, 12 insertions(+), 13 deletions(-) diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c index ebb61b47dc2f..a10ceaa8f881 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.c +++ b/drivers/scsi/mpt3sas/mpt3sas_base.c @@ -5723,14 +5723,13 @@ _base_release_memory_pools(struct MPT3SAS_ADAPTER *ioc) */ static int -mpt3sas_check_same_4gb_region(long reply_pool_start_address, u32 pool_sz) +mpt3sas_check_same_4gb_region(dma_addr_t start_address, u32 pool_sz) { - long reply_pool_end_address; + dma_addr_t end_address; - reply_pool_end_address = reply_pool_start_address + pool_sz; + end_address = start_address + pool_sz - 1; - if (upper_32_bits(reply_pool_start_address) == - upper_32_bits(reply_pool_end_address)) + if (upper_32_bits(start_address) == upper_32_bits(end_address)) return 1; else return 0; @@ -5791,7 +5790,7 @@ _base_allocate_pcie_sgl_pool(struct MPT3SAS_ADAPTER *ioc, u32 sz) } if (!mpt3sas_check_same_4gb_region( - (long)ioc->pcie_sg_lookup[i].pcie_sgl, sz)) { + ioc->pcie_sg_lookup[i].pcie_sgl_dma, sz)) { ioc_err(ioc, "PCIE SGLs are not in same 4G !! pcie sgl (0x%p) dma = (0x%llx)\n", ioc->pcie_sg_lookup[i].pcie_sgl, (unsigned long long) @@ -5846,8 +5845,8 @@ _base_allocate_chain_dma_pool(struct MPT3SAS_ADAPTER *ioc, u32 sz) GFP_KERNEL, &ctr->chain_buffer_dma); if (!ctr->chain_buffer) return -EAGAIN; - if (!mpt3sas_check_same_4gb_region((long) - ctr->chain_buffer, ioc->chain_segment_sz)) { + if (!mpt3sas_check_same_4gb_region( + ctr->chain_buffer_dma, ioc->chain_segment_sz)) { ioc_err(ioc, "Chain buffers are not in same 4G !!! Chain buff (0x%p) dma = (0x%llx)\n", ctr->chain_buffer, @@ -5883,7 +5882,7 @@ _base_allocate_sense_dma_pool(struct MPT3SAS_ADAPTER *ioc, u32 sz) GFP_KERNEL, &ioc->sense_dma); if (!ioc->sense) return -EAGAIN; - if (!mpt3sas_check_same_4gb_region((long)ioc->sense, sz)) { + if (!mpt3sas_check_same_4gb_region(ioc->sense_dma, sz)) { dinitprintk(ioc, pr_err( "Bad Sense Pool! sense (0x%p) sense_dma = (0x%llx)\n", ioc->sense, (unsigned long long) ioc->sense_dma)); @@ -5916,7 +5915,7 @@ _base_allocate_reply_pool(struct MPT3SAS_ADAPTER *ioc, u32 sz) &ioc->reply_dma); if (!ioc->reply) return -EAGAIN; - if (!mpt3sas_check_same_4gb_region((long)ioc->reply_free, sz)) { + if (!mpt3sas_check_same_4gb_region(ioc->reply_dma, sz)) { dinitprintk(ioc, pr_err( "Bad Reply Pool! Reply (0x%p) Reply dma = (0x%llx)\n", ioc->reply, (unsigned long long) ioc->reply_dma)); @@ -5951,7 +5950,7 @@ _base_allocate_reply_free_dma_pool(struct MPT3SAS_ADAPTER *ioc, u32 sz) GFP_KERNEL, &ioc->reply_free_dma); if (!ioc->reply_free) return -EAGAIN; - if (!mpt3sas_check_same_4gb_region((long)ioc->reply_free, sz)) { + if (!mpt3sas_check_same_4gb_region(ioc->reply_free_dma, sz)) { dinitprintk(ioc, pr_err("Bad Reply Free Pool! Reply Free (0x%p) Reply Free dma = (0x%llx)\n", ioc->reply_free, (unsigned long long) ioc->reply_free_dma)); @@ -5990,7 +5989,7 @@ _base_allocate_reply_post_free_array(struct MPT3SAS_ADAPTER *ioc, GFP_KERNEL, &ioc->reply_post_free_array_dma); if (!ioc->reply_post_free_array) return -EAGAIN; - if (!mpt3sas_check_same_4gb_region((long)ioc->reply_post_free_array, + if (!mpt3sas_check_same_4gb_region(ioc->reply_post_free_array_dma, reply_post_free_array_sz)) { dinitprintk(ioc, pr_err( "Bad Reply Free Pool! Reply Free (0x%p) Reply Free dma = (0x%llx)\n", @@ -6055,7 +6054,7 @@ base_alloc_rdpq_dma_pool(struct MPT3SAS_ADAPTER *ioc, int sz) * resources and set DMA mask to 32 and allocate. */ if (!mpt3sas_check_same_4gb_region( - (long)ioc->reply_post[i].reply_post_free, sz)) { + ioc->reply_post[i].reply_post_free_dma, sz)) { dinitprintk(ioc, ioc_err(ioc, "bad Replypost free pool(0x%p)" "reply_post_free_dma = (0x%llx)\n",