From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 AAA8112E1FA; Tue, 13 Feb 2024 00:24:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707783864; cv=none; b=HaBNypjPcE8f0kjY0+3KgVbIjPlB982yqZSx1HVmLoi3EYE9ZcpH1uhJKlyzgMPu3JIpWBMEIltM9r9Vz86CTzFlpYCKr5IT/bKKotqfye2YPaaLyrOWCdrE2siJjBAYQeDTCkjeYNrMLEGTCNybd4jhmNv8ruTIKlmx+YaPZDc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707783864; c=relaxed/simple; bh=BO2iAHGlSeGV+lZ4bF31NOK1cyuTN+llG3Hrw17KFmo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=U9VbhefVLLxOxaXmEiR56NU4ys+RxjbjGNS1Q5CJh0ZmYaHrSNkhMDKZe3eCA2miS+xNb+xV4w5aFXFC3tfSwwtj7Sxxc5PfcLILGcM2olq8Skq/L/hLfSXUJlFEKip3mRBUpWiEamc4wZfZZNvQNXKHnxrg52uL5vlnTo5RCOM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=spZ9Ism1; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="spZ9Ism1" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 54D4FC43394; Tue, 13 Feb 2024 00:24:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1707783864; bh=BO2iAHGlSeGV+lZ4bF31NOK1cyuTN+llG3Hrw17KFmo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=spZ9Ism1joLcFFVIrfbNf2ma9my8ahDLSsNPALhl0HGr8HfYCkF9kCgX/C2RJaL4B Tgs7Q9NeB9LZn46bcFv3UPV01g+Y849cgfsyrZZmDnXGc0v/ec8RMV6kn64wi59bGO U9XFRq8ftr+iCYNl81tsdUvxBYI5JSwjjwGGO3EKLGVMpFNs84XNlNpz4UJFdhDsYP c3zX9NG8FsgrArxYJa7MsxqDty7ku092rxLc8+Er3tLzpDwgJ1GCC3cWXKloDNftMU zBQREQE5lRMycS76mmqNM7gw6Ua9+LKPzlkPxGiefR2Vb5jtpOcbqmW69TcZj0XRNO RbW2kudvhX7WQ== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Hannes Reinecke , Daniel Wagner , "Martin K . Petersen" , Sasha Levin , james.smart@broadcom.com, dick.kennedy@broadcom.com, jejb@linux.ibm.com, linux-scsi@vger.kernel.org Subject: [PATCH AUTOSEL 5.4 2/4] scsi: lpfc: Use unsigned type for num_sge Date: Mon, 12 Feb 2024 19:24:17 -0500 Message-ID: <20240213002420.673218-2-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240213002420.673218-1-sashal@kernel.org> References: <20240213002420.673218-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 5.4.268 Content-Transfer-Encoding: 8bit From: Hannes Reinecke [ Upstream commit d6c1b19153f92e95e5e1801d540e98771053afae ] LUNs going into "failed ready running" state observed on >1T and on even numbers of size (2T, 4T, 6T, 8T and 10T). The issue occurs when DIF is enabled at the host. The kernel logs: Cannot setup S/G List for HBAIO segs 1/1 SGL 512 SCSI 256: 3 0 The host lpfc driver is failing to setup scatter/gather list (protection data) for the I/Os. The return type lpfc_bg_setup_sgl()/lpfc_bg_setup_sgl_prot() causes the compiler to remove the most significant bit. Use an unsigned type instead. Signed-off-by: Hannes Reinecke [dwagner: added commit message] Signed-off-by: Daniel Wagner Link: https://lore.kernel.org/r/20231220162658.12392-1-dwagner@suse.de Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/scsi/lpfc/lpfc_scsi.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index cbab15d299ca..816235ccd299 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -1942,7 +1942,7 @@ lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, * * Returns the number of SGEs added to the SGL. **/ -static int +static uint32_t lpfc_bg_setup_sgl(struct lpfc_hba *phba, struct scsi_cmnd *sc, struct sli4_sge *sgl, int datasegcnt, struct lpfc_io_buf *lpfc_cmd) @@ -1950,8 +1950,8 @@ lpfc_bg_setup_sgl(struct lpfc_hba *phba, struct scsi_cmnd *sc, struct scatterlist *sgde = NULL; /* s/g data entry */ struct sli4_sge_diseed *diseed = NULL; dma_addr_t physaddr; - int i = 0, num_sge = 0, status; - uint32_t reftag; + int i = 0, status; + uint32_t reftag, num_sge = 0; uint8_t txop, rxop; #ifdef CONFIG_SCSI_LPFC_DEBUG_FS uint32_t rc; @@ -2122,7 +2122,7 @@ lpfc_bg_setup_sgl(struct lpfc_hba *phba, struct scsi_cmnd *sc, * * Returns the number of SGEs added to the SGL. **/ -static int +static uint32_t lpfc_bg_setup_sgl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, struct sli4_sge *sgl, int datacnt, int protcnt, struct lpfc_io_buf *lpfc_cmd) @@ -2146,8 +2146,8 @@ lpfc_bg_setup_sgl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, uint32_t rc; #endif uint32_t checking = 1; - uint32_t dma_offset = 0; - int num_sge = 0, j = 2; + uint32_t dma_offset = 0, num_sge = 0; + int j = 2; struct sli4_hybrid_sgl *sgl_xtra = NULL; sgpe = scsi_prot_sglist(sc); -- 2.43.0