From patchwork Tue Jan 9 12:14:58 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nilesh Javali X-Patchwork-Id: 761690 Received: from mx0b-0016f401.pphosted.com (mx0a-0016f401.pphosted.com [67.231.148.174]) (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 932FC381B5 for ; Tue, 9 Jan 2024 12:15:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=marvell.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=marvell.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=marvell.com header.i=@marvell.com header.b="B0hxFZiT" Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 409Bvalg018237; Tue, 9 Jan 2024 04:15:26 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding:content-type; s= pfpt0220; bh=vpOTykXRxJH4boh4qu3+H+w+jfHTB4Kab7aYQJdVAGU=; b=B0h xFZiTvag8u45FTDSeK543hSH2sPG8EEID4yaZHMflemZ0dm/bQiy/8UlPKsJHUEB xy/3CbDLKXPL14jZ8htT8r5bKWJXBTMhDe+8YGF33/PlpzQa+QnWFGoTjHYz23M3 S9osYnpFBfUOXEvQbAM3koSBwzDN9mKLxI1yDKTOuVC7/EpA+sveSsyTrK78mLku 030wCJjXqxQNNzMh6+Yo1IIYx0kCXyL4yO57bk0dccuHHYKBsZOo7sNmMEnalbYG p85LikxnlIS01Ge1dTKe+utyZe+zMmqXr5zTDZvsCk0FVjhS2lL3e3zhIKYRgMQ5 +zCOL3Xsz0RBZC6Wt/g== Received: from dc5-exch01.marvell.com ([199.233.59.181]) by mx0a-0016f401.pphosted.com (PPS) with ESMTPS id 3vh5qt02tm-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Tue, 09 Jan 2024 04:15:26 -0800 (PST) Received: from DC5-EXCH02.marvell.com (10.69.176.39) by DC5-EXCH01.marvell.com (10.69.176.38) with Microsoft SMTP Server (TLS) id 15.0.1497.48; Tue, 9 Jan 2024 04:15:25 -0800 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server id 15.0.1497.48 via Frontend Transport; Tue, 9 Jan 2024 04:15:24 -0800 Received: from stgdev-a5u16.punelab.marvell.com (stgdev-a5u16.punelab.marvell.com [10.31.33.187]) by maili.marvell.com (Postfix) with ESMTP id DBB633F708E; Tue, 9 Jan 2024 04:15:22 -0800 (PST) From: Nilesh Javali To: , , CC: , , Subject: [PATCH v3 3/3] cnic,bnx2,bnx2x: page align uio mmap allocations Date: Tue, 9 Jan 2024 17:44:58 +0530 Message-ID: <20240109121458.26475-4-njavali@marvell.com> X-Mailer: git-send-email 2.23.1 In-Reply-To: <20240109121458.26475-1-njavali@marvell.com> References: <20240109121458.26475-1-njavali@marvell.com> Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Proofpoint-ORIG-GUID: mXUjLIKGQ0fMnWQBLnJ8nDDZ97c-ZLuN X-Proofpoint-GUID: mXUjLIKGQ0fMnWQBLnJ8nDDZ97c-ZLuN X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-12-09_02,2023-12-07_01,2023-05-22_02 From: Chris Leech Allocations in these drivers that will be mmaped through a uio device should be made in multiples of PAGE_SIZE to avoid exposing additional kernel memory unintentionally. Signed-off-by: Nilesh Javali Signed-off-by: Chris Leech --- drivers/net/ethernet/broadcom/bnx2.c | 1 + drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 8 ++++---- drivers/net/ethernet/broadcom/cnic.c | 8 +++++--- 3 files changed, 10 insertions(+), 7 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnx2.c b/drivers/net/ethernet/broadcom/bnx2.c index b65b8592ad75..490f88ad3bd2 100644 --- a/drivers/net/ethernet/broadcom/bnx2.c +++ b/drivers/net/ethernet/broadcom/bnx2.c @@ -838,6 +838,7 @@ bnx2_alloc_stats_blk(struct net_device *dev) BNX2_SBLK_MSIX_ALIGN_SIZE); bp->status_stats_size = status_blk_size + sizeof(struct statistics_block); + bp->status_stats_size = PAGE_ALIGN(bp->status_stats_size); status_blk = dma_alloc_coherent(&bp->pdev->dev, bp->status_stats_size, &bp->status_blk_mapping, GFP_KERNEL); if (!status_blk) diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c index 678829646cec..1d7be7b7c63f 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c @@ -8270,10 +8270,10 @@ void bnx2x_free_mem_cnic(struct bnx2x *bp) if (!CHIP_IS_E1x(bp)) BNX2X_PCI_FREE(bp->cnic_sb.e2_sb, bp->cnic_sb_mapping, - sizeof(struct host_hc_status_block_e2)); + PAGE_ALIGN(sizeof(struct host_hc_status_block_e2))); else BNX2X_PCI_FREE(bp->cnic_sb.e1x_sb, bp->cnic_sb_mapping, - sizeof(struct host_hc_status_block_e1x)); + PAGE_ALIGN(sizeof(struct host_hc_status_block_e1x))); BNX2X_PCI_FREE(bp->t2, bp->t2_mapping, SRC_T2_SZ); } @@ -8316,12 +8316,12 @@ int bnx2x_alloc_mem_cnic(struct bnx2x *bp) if (!CHIP_IS_E1x(bp)) { /* size = the status block + ramrod buffers */ bp->cnic_sb.e2_sb = BNX2X_PCI_ALLOC(&bp->cnic_sb_mapping, - sizeof(struct host_hc_status_block_e2)); + PAGE_ALIGN(sizeof(struct host_hc_status_block_e2))); if (!bp->cnic_sb.e2_sb) goto alloc_mem_err; } else { bp->cnic_sb.e1x_sb = BNX2X_PCI_ALLOC(&bp->cnic_sb_mapping, - sizeof(struct host_hc_status_block_e1x)); + PAGE_ALIGN(sizeof(struct host_hc_status_block_e1x))); if (!bp->cnic_sb.e1x_sb) goto alloc_mem_err; } diff --git a/drivers/net/ethernet/broadcom/cnic.c b/drivers/net/ethernet/broadcom/cnic.c index e2069a984764..ec4333e1ac9b 100644 --- a/drivers/net/ethernet/broadcom/cnic.c +++ b/drivers/net/ethernet/broadcom/cnic.c @@ -1026,6 +1026,7 @@ static int __cnic_alloc_uio_rings(struct cnic_uio_dev *udev, int pages) return 0; udev->l2_ring_size = pages * CNIC_PAGE_SIZE; + udev->l2_ring_size = PAGE_ALIGN(udev->l2_ring_size); udev->l2_ring = dma_alloc_coherent(&udev->pdev->dev, udev->l2_ring_size, &udev->l2_ring_map, GFP_KERNEL); if (!udev->l2_ring) @@ -1033,6 +1034,7 @@ static int __cnic_alloc_uio_rings(struct cnic_uio_dev *udev, int pages) udev->l2_buf_size = (cp->l2_rx_ring_size + 1) * cp->l2_single_buf_size; udev->l2_buf_size = CNIC_PAGE_ALIGN(udev->l2_buf_size); + udev->l2_buf_size = PAGE_ALIGN(udev->l2_buf_size); udev->l2_buf = dma_alloc_coherent(&udev->pdev->dev, udev->l2_buf_size, &udev->l2_buf_map, GFP_KERNEL); if (!udev->l2_buf) { @@ -1109,9 +1111,9 @@ static int cnic_init_uio(struct cnic_dev *dev) CNIC_PAGE_MASK; uinfo->mem[1].dma_addr = cp->status_blk_map; if (cp->ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) - uinfo->mem[1].size = BNX2_SBLK_MSIX_ALIGN_SIZE * 9; + uinfo->mem[1].size = PAGE_ALIGN(BNX2_SBLK_MSIX_ALIGN_SIZE * 9); else - uinfo->mem[1].size = BNX2_SBLK_MSIX_ALIGN_SIZE; + uinfo->mem[1].size = PAGE_ALIGN(BNX2_SBLK_MSIX_ALIGN_SIZE); uinfo->name = "bnx2_cnic"; } else if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) { @@ -1120,7 +1122,7 @@ static int cnic_init_uio(struct cnic_dev *dev) uinfo->mem[1].addr = (unsigned long) cp->bnx2x_def_status_blk & CNIC_PAGE_MASK; uinfo->mem[1].dma_addr = cp->status_blk_map; - uinfo->mem[1].size = sizeof(*cp->bnx2x_def_status_blk); + uinfo->mem[1].size = PAGE_ALIGN(sizeof(*cp->bnx2x_def_status_blk)); uinfo->name = "bnx2x_cnic"; }