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 9E68825553D; Wed, 11 Dec 2024 18:54:11 +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=1733943251; cv=none; b=N3ELUqKKejENd+ut4A97vpYz3E4bRUWawnfRJBjXtieBWplzYIZzctuqZaxOvkyVZWmSv+DX0CaX9ykJvXLzi6l2xe3+Gs170DuMMj9HV/IONoSmbCWXZBEYpryKEUUmvHqGEdi1knLCWaLv6ydGoMSvdmvNRrXmrMlMMxNlrPw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733943251; c=relaxed/simple; bh=LS/prfdudnyizGxAyFq1i7ISPOp2WtySokBWdeB3kbs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=S0qvYaWkIJ70MhD3wi1rcz7Fd6p4JrtpyRoi5QVO3iDgskpfmmdy/ykOrYIUFrmC7K369dYBhrQsSFgRj+Hs9n97J4hE/wI8RoHk1nY5sGiDjVZiiy9vUohnRKMHM/ih3OEasyxEFNjVOBwVxEzqoIJxL+Id+PQYmh09RgnseTM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Dvlf7rdo; 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="Dvlf7rdo" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1A75CC4CED2; Wed, 11 Dec 2024 18:54:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1733943251; bh=LS/prfdudnyizGxAyFq1i7ISPOp2WtySokBWdeB3kbs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Dvlf7rdo2o7Ng063jy5sTloEP/Y0N0LiXaA+jwpVHnQXEAURE3/YXzn3QgH63V006 X3g0WI4ds+yjT18bnG652mUQd8P7Ju8rYjqH8wCqTVnPRkDVs5UkjDD6oNKcx1jz+P QEpCcswofRpSkpmVzwtUxCOtGlACD8NkrMM+35Md9ssITrVnZhWK7TviicKEzBG0bH cEW3qbPo2oWnFzfH2UsTBEKZm5QxKwaWddVS4hg7TLhEgFo3SrZn/Mxl8uzGTwx3Oi Cm7W12OFSA2hlb0Lhif/51LCd33dg9T85ioLvjN7vck/1sz9jf61CIv2zGA0sAnN0M fkwMKDrAfPe2g== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Ranjan Kumar , "Martin K . Petersen" , Sasha Levin , sathya.prakash@broadcom.com, sreekanth.reddy@broadcom.com, suganath-prabu.subramani@broadcom.com, James.Bottomley@HansenPartnership.com, MPT-FusionLinux.pdl@broadcom.com, linux-scsi@vger.kernel.org Subject: [PATCH AUTOSEL 5.15 08/10] scsi: mpt3sas: Diag-Reset when Doorbell-In-Use bit is set during driver load time Date: Wed, 11 Dec 2024 13:53:49 -0500 Message-ID: <20241211185355.3842902-8-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241211185355.3842902-1-sashal@kernel.org> References: <20241211185355.3842902-1-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 5.15.173 Content-Transfer-Encoding: 8bit From: Ranjan Kumar [ Upstream commit 3f5eb062e8aa335643181c480e6c590c6cedfd22 ] Issue a Diag-Reset when the "Doorbell-In-Use" bit is set during the driver load/initialization. Signed-off-by: Ranjan Kumar Link: https://lore.kernel.org/r/20241110173341.11595-2-ranjan.kumar@broadcom.com Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/scsi/mpt3sas/mpt3sas_base.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c index 0fc2c355fc379..0c768c404d3d8 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.c +++ b/drivers/scsi/mpt3sas/mpt3sas_base.c @@ -6901,11 +6901,12 @@ _base_handshake_req_reply_wait(struct MPT3SAS_ADAPTER *ioc, int request_bytes, int i; u8 failed; __le32 *mfp; + int ret_val; /* make sure doorbell is not in use */ if ((ioc->base_readl_ext_retry(&ioc->chip->Doorbell) & MPI2_DOORBELL_USED)) { ioc_err(ioc, "doorbell is in use (line=%d)\n", __LINE__); - return -EFAULT; + goto doorbell_diag_reset; } /* clear pending doorbell interrupts from previous state changes */ @@ -6995,6 +6996,10 @@ _base_handshake_req_reply_wait(struct MPT3SAS_ADAPTER *ioc, int request_bytes, le32_to_cpu(mfp[i])); } return 0; + +doorbell_diag_reset: + ret_val = _base_diag_reset(ioc); + return ret_val; } /** -- 2.43.0