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authorDavid Gwynne <dlg@cvs.openbsd.org>2006-12-12 02:06:10 +0000
committerDavid Gwynne <dlg@cvs.openbsd.org>2006-12-12 02:06:10 +0000
commit36fdd91a757640f79b72e7cfce049b075ff3d924 (patch)
tree7e9a42cb9ff93909405fcba2e2a59cab8bd72c35 /sys
parentf04168c480f134c1923cf8f1b9eb7613880b49b6 (diff)
stash the number of commands each port can do in the softc
Diffstat (limited to 'sys')
-rw-r--r--sys/dev/pci/ahci.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/sys/dev/pci/ahci.c b/sys/dev/pci/ahci.c
index f48566208e1..16ee5acd54f 100644
--- a/sys/dev/pci/ahci.c
+++ b/sys/dev/pci/ahci.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ahci.c,v 1.21 2006/12/11 23:42:33 dlg Exp $ */
+/* $OpenBSD: ahci.c,v 1.22 2006/12/12 02:06:09 dlg Exp $ */
/*
* Copyright (c) 2006 David Gwynne <dlg@openbsd.org>
@@ -179,6 +179,8 @@ struct ahci_softc {
bus_space_handle_t sc_ioh;
bus_size_t sc_ios;
bus_dma_tag_t sc_dmat;
+
+ u_int sc_ncmds;
};
#define DEVNAME(_s) ((_s)->sc_dev.dv_xname)
@@ -262,7 +264,7 @@ ahci_attach(struct device *parent, struct device *self, void *aux)
printf("%s: capabilities: 0x%b ports: %d ncmds: %d gen: %s\n",
DEVNAME(sc), reg, AHCI_FMT_CAP,
- AHCI_REG_CAP_NP(reg), AHCI_REG_CAP_NCS(reg), gen);
+ AHCI_REG_CAP_NP(reg), sc->sc_ncmds, gen);
}
#endif
@@ -365,6 +367,9 @@ ahci_init(struct ahci_softc *sc)
printf(": AHCI %s", revision);
+ reg = ahci_read(sc, AHCI_REG_CAP);
+ sc->sc_ncmds = AHCI_REG_CAP_NCS(reg);
+
return (0);
}