From: Daniel Machon <daniel.machon@microchip.com> To: "David S. Miller" <davem@davemloft.net>, Eric Dumazet <edumazet@google.com>, Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>, Lars Povlsen <lars.povlsen@microchip.com>, "Steen Hegelund" <Steen.Hegelund@microchip.com>, <UNGLinuxDriver@microchip.com>, Bjarni Jonasson <bjarni.jonasson@microchip.com> Cc: <netdev@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org>, <linux-kernel@vger.kernel.org>, Steen Hegelund <steen.hegelund@microchip.com>, Daniel Machon <daniel.machon@microchip.com> Subject: [PATCH net] net: sparx5: fix reconfiguration of PCS on link mode change Date: Fri, 5 Apr 2024 11:53:15 +0200 [thread overview] Message-ID: <20240405-link-mode-reconfiguration-fix-v1-1-c1480bc2346a@microchip.com> (raw) It was observed that the PCS would be misconfigured on link mode change, if the negotiated link mode went from no-inband capabilities to in-band capabilities. This bug appeared after the neg_mode change of phylink [1], but is really due to the wrong config being used when reconfiguring the PCS. Fix this by correctly using the new port configuration instead of the old one. [1] https://lore.kernel.org/netdev/ZIxQIBfO9dH5xFlg@shell.armlinux.org.uk/ Fixes: 946e7fd5053a ("net: sparx5: add port module support") Signed-off-by: Daniel Machon <daniel.machon@microchip.com> --- drivers/net/ethernet/microchip/sparx5/sparx5_port.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_port.c b/drivers/net/ethernet/microchip/sparx5/sparx5_port.c index 3a1b1a1f5a19..60dd2fd603a8 100644 --- a/drivers/net/ethernet/microchip/sparx5/sparx5_port.c +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_port.c @@ -731,7 +731,7 @@ static int sparx5_port_pcs_low_set(struct sparx5 *sparx5, bool sgmii = false, inband_aneg = false; int err; - if (port->conf.inband) { + if (conf->inband) { if (conf->portmode == PHY_INTERFACE_MODE_SGMII || conf->portmode == PHY_INTERFACE_MODE_QSGMII) inband_aneg = true; /* Cisco-SGMII in-band-aneg */ @@ -948,7 +948,7 @@ int sparx5_port_pcs_set(struct sparx5 *sparx5, if (err) return -EINVAL; - if (port->conf.inband) { + if (conf->inband) { /* Enable/disable 1G counters in ASM */ spx5_rmw(ASM_PORT_CFG_CSC_STAT_DIS_SET(high_speed_dev), ASM_PORT_CFG_CSC_STAT_DIS, --- base-commit: d76c740b2eaaddc5fc3a8b21eaec5b6b11e8c3f5 change-id: 20240305-link-mode-reconfiguration-fix-df961fef5505 Best regards, -- Daniel Machon <daniel.machon@microchip.com>
WARNING: multiple messages have this Message-ID (diff)
From: Daniel Machon <daniel.machon@microchip.com> To: "David S. Miller" <davem@davemloft.net>, Eric Dumazet <edumazet@google.com>, Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>, Lars Povlsen <lars.povlsen@microchip.com>, "Steen Hegelund" <Steen.Hegelund@microchip.com>, <UNGLinuxDriver@microchip.com>, Bjarni Jonasson <bjarni.jonasson@microchip.com> Cc: <netdev@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org>, <linux-kernel@vger.kernel.org>, Steen Hegelund <steen.hegelund@microchip.com>, Daniel Machon <daniel.machon@microchip.com> Subject: [PATCH net] net: sparx5: fix reconfiguration of PCS on link mode change Date: Fri, 5 Apr 2024 11:53:15 +0200 [thread overview] Message-ID: <20240405-link-mode-reconfiguration-fix-v1-1-c1480bc2346a@microchip.com> (raw) It was observed that the PCS would be misconfigured on link mode change, if the negotiated link mode went from no-inband capabilities to in-band capabilities. This bug appeared after the neg_mode change of phylink [1], but is really due to the wrong config being used when reconfiguring the PCS. Fix this by correctly using the new port configuration instead of the old one. [1] https://lore.kernel.org/netdev/ZIxQIBfO9dH5xFlg@shell.armlinux.org.uk/ Fixes: 946e7fd5053a ("net: sparx5: add port module support") Signed-off-by: Daniel Machon <daniel.machon@microchip.com> --- drivers/net/ethernet/microchip/sparx5/sparx5_port.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_port.c b/drivers/net/ethernet/microchip/sparx5/sparx5_port.c index 3a1b1a1f5a19..60dd2fd603a8 100644 --- a/drivers/net/ethernet/microchip/sparx5/sparx5_port.c +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_port.c @@ -731,7 +731,7 @@ static int sparx5_port_pcs_low_set(struct sparx5 *sparx5, bool sgmii = false, inband_aneg = false; int err; - if (port->conf.inband) { + if (conf->inband) { if (conf->portmode == PHY_INTERFACE_MODE_SGMII || conf->portmode == PHY_INTERFACE_MODE_QSGMII) inband_aneg = true; /* Cisco-SGMII in-band-aneg */ @@ -948,7 +948,7 @@ int sparx5_port_pcs_set(struct sparx5 *sparx5, if (err) return -EINVAL; - if (port->conf.inband) { + if (conf->inband) { /* Enable/disable 1G counters in ASM */ spx5_rmw(ASM_PORT_CFG_CSC_STAT_DIS_SET(high_speed_dev), ASM_PORT_CFG_CSC_STAT_DIS, --- base-commit: d76c740b2eaaddc5fc3a8b21eaec5b6b11e8c3f5 change-id: 20240305-link-mode-reconfiguration-fix-df961fef5505 Best regards, -- Daniel Machon <daniel.machon@microchip.com> _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2024-04-05 9:54 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-04-05 9:53 Daniel Machon [this message] 2024-04-05 9:53 ` [PATCH net] net: sparx5: fix reconfiguration of PCS on link mode change Daniel Machon 2024-04-05 10:20 ` Russell King (Oracle) 2024-04-05 10:20 ` Russell King (Oracle) 2024-04-05 19:45 ` Daniel Machon 2024-04-05 19:45 ` Daniel Machon 2024-04-05 20:05 ` Russell King (Oracle) 2024-04-05 20:05 ` Russell King (Oracle)
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20240405-link-mode-reconfiguration-fix-v1-1-c1480bc2346a@microchip.com \ --to=daniel.machon@microchip.com \ --cc=Steen.Hegelund@microchip.com \ --cc=UNGLinuxDriver@microchip.com \ --cc=bjarni.jonasson@microchip.com \ --cc=davem@davemloft.net \ --cc=edumazet@google.com \ --cc=kuba@kernel.org \ --cc=lars.povlsen@microchip.com \ --cc=linux-arm-kernel@lists.infradead.org \ --cc=linux-kernel@vger.kernel.org \ --cc=netdev@vger.kernel.org \ --cc=pabeni@redhat.com \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.