From: Conrad Kostecki <conikost@gentoo.org>
To: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: dlemoal@kernel.org, hdegoede@redhat.com
Subject: [PATCH] ahci: asm1166: correct count of reported ports
Date: Tue, 23 Jan 2024 19:30:02 +0100 [thread overview]
Message-ID: <20240123183002.15499-1-conikost@gentoo.org> (raw)
The ASM1166 SATA host controller always reports wrongly,
that it has 32 ports. But in reality, it only has six ports.
This seems to be a hardware issue, as all tested ASM1166
SATA host controllers reports such high count of ports.
Example output: ahci 0000:09:00.0: AHCI 0001.0301
32 slots 32 ports 6 Gbps 0xffffff3f impl SATA mode.
By adjusting the port_map, the count is limited to six ports.
New output: ahci 0000:09:00.0: AHCI 0001.0301
32 slots 32 ports 6 Gbps 0x3f impl SATA mode.
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=211873
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218346
Signed-off-by: Conrad Kostecki <conikost@gentoo.org>
---
drivers/ata/ahci.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 3a5f3255f51b..762c5d8b7c1a 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -663,6 +663,11 @@ MODULE_PARM_DESC(mobile_lpm_policy, "Default LPM policy for mobile chipsets");
static void ahci_pci_save_initial_config(struct pci_dev *pdev,
struct ahci_host_priv *hpriv)
{
+ if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA && pdev->device == 0x1166) {
+ dev_info(&pdev->dev, "ASM1166 has only six ports\n");
+ hpriv->saved_port_map = 0x3f;
+ }
+
if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361) {
dev_info(&pdev->dev, "JMB361 has only one port\n");
hpriv->saved_port_map = 1;
--
2.43.0
next reply other threads:[~2024-01-23 18:30 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-23 18:30 Conrad Kostecki [this message]
2024-01-23 18:41 ` [PATCH] ahci: asm1166: correct count of reported ports Hans de Goede
2024-01-23 19:04 ` Hans de Goede
2024-01-24 8:01 ` Niklas Cassel
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