From patchwork Tue Feb 6 00:59:27 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sinthu Raja X-Patchwork-Id: 13546482 Received: from egress-ip12b.ess.de.barracuda.com (egress-ip12b.ess.de.barracuda.com [18.185.115.216]) (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 7D1B04A02 for ; Tue, 6 Feb 2024 00:59:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=18.185.115.216 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707181188; cv=none; b=McqsBX7z2DNVHx1tFUpCF7ygQ4OlrSJTckNB4hjVlGKGZ230IrEzAKRWnf77ceHbPC0H8hP8lMlyMM4KASvlCSTzhn9MOfDchsJx6X3CENIfNASd1o6CIXmIkQQJh3+Xp8YA7jYUM2NpQigVgJkziwAXn5tgKdz+ek3mKMA6vTs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707181188; c=relaxed/simple; bh=HoeyniJL4CsApGog4Sdv28aS5xczQ9ENGv9KZ37K+DI=; 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Mon, 05 Feb 2024 16:59:41 -0800 (PST) X-Forwarded-Encrypted: i=0; AJvYcCUgGUdcJO/rMjWKaqgxD2VTI38z/8rfDvr+/aHlfjiz2gPIOCzRPcTCxzc52uW+5dUBXVccazrENfLLv4JzIdSNFvae4dD2ovgFN/FYT2UiC11j336GtWED49jcYatv8JIS0Q3ciK3LYlvaxY5TXOtIsULHS2/AH0VLGNdU8Xr4fmhA4paUAFWo4hKV4IK6s5Hm6XKgz6+YZWHXwDqoPkr38ofEmAtoFzssJjRBJP6c Received: from localhost.localdomain ([49.207.212.181]) by smtp.gmail.com with ESMTPSA id le11-20020a170902fb0b00b001d8f251c8b2sm496534plb.221.2024.02.05.16.59.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 05 Feb 2024 16:59:40 -0800 (PST) From: Sinthu Raja X-Google-Original-From: Sinthu Raja To: Denis Kirjanov , Siddharth Vadapalli , Ravi Gunasekaran , Roger Quadros Cc: linux-omap@vger.kernel.org, netdev@vger.kernel.org, Sinthu Raja , stable@vger.kernel.org Subject: [PATCH V3 1/2] net: ethernet: ti: cpsw_new: enable mac_managed_pm to fix mdio Date: Tue, 6 Feb 2024 06:29:27 +0530 Message-Id: <20240206005928.15703-2-sinthu.raja@ti.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20240206005928.15703-1-sinthu.raja@ti.com> References: <20240206005928.15703-1-sinthu.raja@ti.com> Precedence: bulk X-Mailing-List: linux-omap@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-BESS-ID: 1707181183-304267-30762-4856-1 X-BESS-VER: 2019.1_20240205.2236 X-BESS-Apparent-Source-IP: 209.85.214.199 X-BESS-Parts: H4sIAAAAAAACA4uuVkqtKFGyUirNy1bSUcovVrIyMjE0ArIygIImRuZGicamlm lJSZZGphaJySmWqUlGZilp5sYGlkmpRkq1sQD8VWC5QQAAAA== X-BESS-Outbound-Spam-Score: 0.00 X-BESS-Outbound-Spam-Report: Code version 3.2, rules version 3.2.2.254014 [from cloudscan14-232.eu-central-1a.ess.aws.cudaops.com] Rule breakdown below pts rule name description ---- ---------------------- -------------------------------- 0.00 BSF_SC0_MISMATCH_TO META: Envelope rcpt doesn't match header 0.00 BSF_BESS_OUTBOUND META: BESS Outbound X-BESS-Outbound-Spam-Status: SCORE=0.00 using account:ESS91090 scores of KILL_LEVEL=7.0 tests=BSF_SC0_MISMATCH_TO, BSF_BESS_OUTBOUND X-BESS-BRTS-Status: 1 From: Sinthu Raja The below commit introduced a WARN when phy state is not in the states: PHY_HALTED, PHY_READY and PHY_UP. commit 744d23c71af3 ("net: phy: Warn about incorrect mdio_bus_phy_resume() state") When cpsw_new resumes, there have port in PHY_NOLINK state, so the below warning comes out. Set mac_managed_pm be true to tell mdio that the phy resume/suspend is managed by the mac, to fix the following warning: WARNING: CPU: 0 PID: 965 at drivers/net/phy/phy_device.c:326 mdio_bus_phy_resume+0x140/0x144 CPU: 0 PID: 965 Comm: sh Tainted: G O 6.1.46-g247b2535b2 #1 Hardware name: Generic AM33XX (Flattened Device Tree) unwind_backtrace from show_stack+0x18/0x1c show_stack from dump_stack_lvl+0x24/0x2c dump_stack_lvl from __warn+0x84/0x15c __warn from warn_slowpath_fmt+0x1a8/0x1c8 warn_slowpath_fmt from mdio_bus_phy_resume+0x140/0x144 mdio_bus_phy_resume from dpm_run_callback+0x3c/0x140 dpm_run_callback from device_resume+0xb8/0x2b8 device_resume from dpm_resume+0x144/0x314 dpm_resume from dpm_resume_end+0x14/0x20 dpm_resume_end from suspend_devices_and_enter+0xd0/0x924 suspend_devices_and_enter from pm_suspend+0x2e0/0x33c pm_suspend from state_store+0x74/0xd0 state_store from kernfs_fop_write_iter+0x104/0x1ec kernfs_fop_write_iter from vfs_write+0x1b8/0x358 vfs_write from ksys_write+0x78/0xf8 ksys_write from ret_fast_syscall+0x0/0x54 Exception stack(0xe094dfa8 to 0xe094dff0) dfa0: 00000004 005c3fb8 00000001 005c3fb8 00000004 00000001 dfc0: 00000004 005c3fb8 b6f6bba0 00000004 00000004 0059edb8 00000000 00000000 dfe0: 00000004 bed918f0 b6f09bd3 b6e89a66 Cc: # v6.0+ Fixes: 744d23c71af3 ("net: phy: Warn about incorrect mdio_bus_phy_resume() state") Signed-off-by: Sinthu Raja --- Changes in V3: - No Change Changes in V2: - Add fixes tag. drivers/net/ethernet/ti/cpsw_new.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ethernet/ti/cpsw_new.c b/drivers/net/ethernet/ti/cpsw_new.c index 498c50c6d1a7..087dcb67505a 100644 --- a/drivers/net/ethernet/ti/cpsw_new.c +++ b/drivers/net/ethernet/ti/cpsw_new.c @@ -773,6 +773,9 @@ static void cpsw_slave_open(struct cpsw_slave *slave, struct cpsw_priv *priv) slave->slave_num); return; } + + phy->mac_managed_pm = true; + slave->phy = phy; phy_attached_info(slave->phy); From patchwork Tue Feb 6 00:59:28 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sinthu Raja X-Patchwork-Id: 13546484 Received: from egress-ip43a.ess.de.barracuda.com (egress-ip43a.ess.de.barracuda.com [18.185.115.202]) (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 E4ECD1870 for ; Tue, 6 Feb 2024 00:59:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=18.185.115.202 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707181190; cv=none; b=QhC8lXRu/m/XbmblH2ggMzcPbaui1qtQ2chLzACM0nsJInkF50vUK/YonkWvDDSvW6pU/S6/Lft82ITDcNYrcrt3JApUsl3x0BUXDh7AHNxyzEaf6JSRZJenT0ii3RePDF+Tw369av6ewTjpacNy/MK24TSJSl79XnpljspiaRo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; 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Mon, 05 Feb 2024 16:59:45 -0800 (PST) X-Forwarded-Encrypted: i=0; AJvYcCWz/WSqyM10dRAG0UpNtz48TCpwSK/9J6LcnyWL7CyLcLv7sHdiB5wyp6X9o2IaDjsJ7MrT7O77b38629bOz/H1BtbigQrNgoVY5xi+jUndtH41j9kZ3H9JYa+wk1eBP26O2xxlClOfXFSeSvcwpBkGMiX3SFV9pqyFxmQHn7S7eQrL3p1l+0k1FShba1fWhxbm/p8OrgZ3TVdAt3omfxroGoJ4GK2g/Jw8UaRwT2Tj Received: from localhost.localdomain ([49.207.212.181]) by smtp.gmail.com with ESMTPSA id le11-20020a170902fb0b00b001d8f251c8b2sm496534plb.221.2024.02.05.16.59.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 05 Feb 2024 16:59:44 -0800 (PST) From: Sinthu Raja X-Google-Original-From: Sinthu Raja To: Denis Kirjanov , Siddharth Vadapalli , Ravi Gunasekaran , Roger Quadros Cc: linux-omap@vger.kernel.org, netdev@vger.kernel.org, Sinthu Raja , stable@vger.kernel.org Subject: [PATCH V3 2/2] net: ethernet: ti: cpsw: enable mac_managed_pm to fix mdio Date: Tue, 6 Feb 2024 06:29:28 +0530 Message-Id: <20240206005928.15703-3-sinthu.raja@ti.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20240206005928.15703-1-sinthu.raja@ti.com> References: <20240206005928.15703-1-sinthu.raja@ti.com> Precedence: bulk X-Mailing-List: linux-omap@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-BESS-ID: 1707181185-302766-3502-4669-1 X-BESS-VER: 2019.1_20240205.2236 X-BESS-Apparent-Source-IP: 209.85.214.199 X-BESS-Parts: H4sIAAAAAAACA4uuVkqtKFGyUirNy1bSUcovVrIyMrI0AbIygILmiaYmJmZmqW aJSUaGZkbmxmbJacYpqSYmhpaJxmlJiUq1sQABbgJlQQAAAA== X-BESS-Outbound-Spam-Score: 0.00 X-BESS-Outbound-Spam-Report: Code version 3.2, rules version 3.2.2.254014 [from cloudscan20-2.eu-central-1b.ess.aws.cudaops.com] Rule breakdown below pts rule name description ---- ---------------------- -------------------------------- 0.00 BSF_BESS_OUTBOUND META: BESS Outbound 0.00 BSF_SC0_MISMATCH_TO META: Envelope rcpt doesn't match header X-BESS-Outbound-Spam-Status: SCORE=0.00 using account:ESS91090 scores of KILL_LEVEL=7.0 tests=BSF_BESS_OUTBOUND, BSF_SC0_MISMATCH_TO X-BESS-BRTS-Status: 1 From: Sinthu Raja The below commit introduced a WARN when phy state is not in the states: PHY_HALTED, PHY_READY and PHY_UP. commit 744d23c71af3 ("net: phy: Warn about incorrect mdio_bus_phy_resume() state") When cpsw resumes, there have port in PHY_NOLINK state, so the below warning comes out. Set mac_managed_pm be true to tell mdio that the phy resume/suspend is managed by the mac, to fix the following warning: WARNING: CPU: 0 PID: 965 at drivers/net/phy/phy_device.c:326 mdio_bus_phy_resume+0x140/0x144 CPU: 0 PID: 965 Comm: sh Tainted: G O 6.1.46-g247b2535b2 #1 Hardware name: Generic AM33XX (Flattened Device Tree) unwind_backtrace from show_stack+0x18/0x1c show_stack from dump_stack_lvl+0x24/0x2c dump_stack_lvl from __warn+0x84/0x15c __warn from warn_slowpath_fmt+0x1a8/0x1c8 warn_slowpath_fmt from mdio_bus_phy_resume+0x140/0x144 mdio_bus_phy_resume from dpm_run_callback+0x3c/0x140 dpm_run_callback from device_resume+0xb8/0x2b8 device_resume from dpm_resume+0x144/0x314 dpm_resume from dpm_resume_end+0x14/0x20 dpm_resume_end from suspend_devices_and_enter+0xd0/0x924 suspend_devices_and_enter from pm_suspend+0x2e0/0x33c pm_suspend from state_store+0x74/0xd0 state_store from kernfs_fop_write_iter+0x104/0x1ec kernfs_fop_write_iter from vfs_write+0x1b8/0x358 vfs_write from ksys_write+0x78/0xf8 ksys_write from ret_fast_syscall+0x0/0x54 Exception stack(0xe094dfa8 to 0xe094dff0) dfa0: 00000004 005c3fb8 00000001 005c3fb8 00000004 00000001 dfc0: 00000004 005c3fb8 b6f6bba0 00000004 00000004 0059edb8 00000000 00000000 dfe0: 00000004 bed918f0 b6f09bd3 b6e89a66 Cc: # v6.0+ Fixes: 744d23c71af3 ("net: phy: Warn about incorrect mdio_bus_phy_resume() state") Signed-off-by: Sinthu Raja --- drivers/net/ethernet/ti/cpsw.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index ea85c6dd5484..c0a5abd8d9a8 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -631,6 +631,8 @@ static void cpsw_slave_open(struct cpsw_slave *slave, struct cpsw_priv *priv) } } + phy->mac_managed_pm = true; + slave->phy = phy; phy_attached_info(slave->phy);