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| author | Conrad Kostecki <conikost@gentoo.org> | 2024-01-23 19:30:02 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-03-01 13:06:09 +0100 |
| commit | 3f25115864b2abfac4f9267475ed9419073aa560 (patch) | |
| tree | 9abafa00d2272d683c1a8dd81821bc0af88ab129 | |
| parent | 84246c35ca34207114055a87552a1c4289c8fd7e (diff) | |
| download | linux-stable-3f25115864b2abfac4f9267475ed9419073aa560.tar.gz linux-stable-3f25115864b2abfac4f9267475ed9419073aa560.tar.bz2 linux-stable-3f25115864b2abfac4f9267475ed9419073aa560.zip | |
ahci: asm1166: correct count of reported ports
[ Upstream commit 0077a504e1a4468669fd2e011108db49133db56e ]
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>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/ata/ahci.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index ab3ea47ecce3..abdfd440987b 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -634,6 +634,11 @@ 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->force_port_map = 1; |