git: b658158e9396 - main - ahci: Don't fail attach if the MSI-X BARs cannot be allocated
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Date: Mon, 06 Oct 2025 17:57:03 UTC
The branch main has been updated by jhb:
URL: https://cgit.FreeBSD.org/src/commit/?id=b658158e9396848d3963e9555d356d0f4ca6900a
commit b658158e9396848d3963e9555d356d0f4ca6900a
Author: John Baldwin <jhb@FreeBSD.org>
AuthorDate: 2025-10-06 17:56:47 +0000
Commit: John Baldwin <jhb@FreeBSD.org>
CommitDate: 2025-10-06 17:56:47 +0000
ahci: Don't fail attach if the MSI-X BARs cannot be allocated
If the MSI-X table and/or PBA live in separate BAR(s) and those BAR(s)
cannot be allocated, fall back to using MSI or INTx instead of failing
attach.
PR: 289748
Reported by: Vitalij Satanivskij <satan@Ukr.net>
Reviewed by: avg, imp
Differential Revision: https://reviews.freebsd.org/D52889
---
sys/dev/ahci/ahci_pci.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/sys/dev/ahci/ahci_pci.c b/sys/dev/ahci/ahci_pci.c
index 80547d178cd6..2b4cb37275a6 100644
--- a/sys/dev/ahci/ahci_pci.c
+++ b/sys/dev/ahci/ahci_pci.c
@@ -576,8 +576,8 @@ ahci_pci_attach(device_t dev)
ctlr->r_msix_table = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
&ctlr->r_msix_tab_rid, RF_ACTIVE);
if (ctlr->r_msix_table == NULL) {
- ahci_free_mem(dev);
- return (ENXIO);
+ msix_count = 0;
+ goto no_msix;
}
}
@@ -592,12 +592,12 @@ ahci_pci_attach(device_t dev)
ctlr->r_msix_pba = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
&ctlr->r_msix_pba_rid, RF_ACTIVE);
if (ctlr->r_msix_pba == NULL) {
- ahci_free_mem(dev);
- return (ENXIO);
+ msix_count = 0;
}
}
}
+no_msix:
pci_enable_busmaster(dev);
/* Reset controller */
if ((error = ahci_pci_ctlr_reset(dev)) != 0) {