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[src/trunk]: src/sys/dev/pci simplify intr establish code - rely on pci_intr_...
details: https://anonhg.NetBSD.org/src/rev/cf21ca7a2837
branches: trunk
changeset: 837363:cf21ca7a2837
user: jdolecek <jdolecek%NetBSD.org@localhost>
date: Fri Nov 30 17:47:54 2018 +0000
description:
simplify intr establish code - rely on pci_intr_alloc() to allow
also MSI-X, and to return interrupt types which are possible for
pci_intr_establish(); remove fallbacks to retry with MSI/MSI-X
explicitly disabled
discussed on tech-kern@
https://mail-index.netbsd.org/tech-kern/2018/11/27/msg024240.html
diffstat:
sys/dev/pci/ahcisata_pci.c | 53 ++++++---------------------------------------
sys/dev/pci/xhci_pci.c | 51 ++++++-------------------------------------
2 files changed, 16 insertions(+), 88 deletions(-)
diffs (173 lines):
diff -r a0f3fb52e1ca -r cf21ca7a2837 sys/dev/pci/ahcisata_pci.c
--- a/sys/dev/pci/ahcisata_pci.c Fri Nov 30 16:28:43 2018 +0000
+++ b/sys/dev/pci/ahcisata_pci.c Fri Nov 30 17:47:54 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: ahcisata_pci.c,v 1.47 2018/11/26 21:56:04 jdolecek Exp $ */
+/* $NetBSD: ahcisata_pci.c,v 1.48 2018/11/30 17:47:54 jdolecek Exp $ */
/*
* Copyright (c) 2006 Manuel Bouyer.
@@ -26,7 +26,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ahcisata_pci.c,v 1.47 2018/11/26 21:56:04 jdolecek Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ahcisata_pci.c,v 1.48 2018/11/30 17:47:54 jdolecek Exp $");
#ifdef _KERNEL_OPT
#include "opt_ahcisata_pci.h"
@@ -311,21 +311,8 @@
pci_aprint_devinfo(pa, "AHCI disk controller");
-
- /* Allocation settings */
- int counts[PCI_INTR_TYPE_SIZE] = {
- [PCI_INTR_TYPE_INTX] = 1,
-#ifndef AHCISATA_DISABLE_MSI
- [PCI_INTR_TYPE_MSI] = 1,
-#endif
-#ifndef AHCISATA_DISABLE_MSIX
- [PCI_INTR_TYPE_MSIX] = 1,
-#endif
- };
-
-alloc_retry:
/* Allocate and establish the interrupt. */
- if (pci_intr_alloc(pa, &psc->sc_pihp, counts, PCI_INTR_TYPE_MSIX)) {
+ if (pci_intr_alloc(pa, &psc->sc_pihp, NULL, 0)) {
aprint_error_dev(self, "can't allocate handler\n");
goto fail;
}
@@ -335,37 +322,13 @@
psc->sc_ih = pci_intr_establish_xname(pa->pa_pc, psc->sc_pihp[0],
IPL_BIO, ahci_intr, sc, device_xname(sc->sc_atac.atac_dev));
if (psc->sc_ih == NULL) {
- const pci_intr_type_t intr_type = pci_intr_type(pa->pa_pc,
- psc->sc_pihp[0]);
pci_intr_release(pa->pa_pc, psc->sc_pihp, 1);
psc->sc_ih = NULL;
- switch (intr_type) {
-#ifndef AHCISATA_DISABLE_MSIX
- case PCI_INTR_TYPE_MSIX:
- /* The next try is for MSI: Disable MSIX */
- counts[PCI_INTR_TYPE_INTX] = 1;
-#ifndef AHCISATA_DISABLE_MSI
- counts[PCI_INTR_TYPE_MSI] = 1;
-#endif
- counts[PCI_INTR_TYPE_MSIX] = 0;
- goto alloc_retry;
-#endif
-#ifndef AHCISATA_DISABLE_MSI
- case PCI_INTR_TYPE_MSI:
- /* The next try is for INTx: Disable MSI */
- counts[PCI_INTR_TYPE_MSI] = 0;
- counts[PCI_INTR_TYPE_INTX] = 1;
- goto alloc_retry;
-#endif
- case PCI_INTR_TYPE_INTX:
- default:
- counts[PCI_INTR_TYPE_INTX] = 1;
- aprint_error_dev(self, "couldn't establish interrupt");
- if (intrstr != NULL)
- aprint_error(" at %s", intrstr);
- aprint_error("\n");
- goto fail;
- }
+ aprint_error_dev(self, "couldn't establish interrupt");
+ if (intrstr != NULL)
+ aprint_error(" at %s", intrstr);
+ aprint_error("\n");
+ goto fail;
}
aprint_normal_dev(self, "interrupting at %s\n", intrstr);
diff -r a0f3fb52e1ca -r cf21ca7a2837 sys/dev/pci/xhci_pci.c
--- a/sys/dev/pci/xhci_pci.c Fri Nov 30 16:28:43 2018 +0000
+++ b/sys/dev/pci/xhci_pci.c Fri Nov 30 17:47:54 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: xhci_pci.c,v 1.17 2018/11/24 14:50:04 skrll Exp $ */
+/* $NetBSD: xhci_pci.c,v 1.18 2018/11/30 17:47:54 jdolecek Exp $ */
/* OpenBSD: xhci_pci.c,v 1.4 2014/07/12 17:38:51 yuo Exp */
/*
@@ -32,7 +32,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: xhci_pci.c,v 1.17 2018/11/24 14:50:04 skrll Exp $");
+__KERNEL_RCSID(0, "$NetBSD: xhci_pci.c,v 1.18 2018/11/30 17:47:54 jdolecek Exp $");
#ifdef _KERNEL_OPT
#include "opt_xhci_pci.h"
@@ -123,7 +123,6 @@
struct pci_attach_args *const pa = (struct pci_attach_args *)aux;
const pci_chipset_tag_t pc = pa->pa_pc;
const pcitag_t tag = pa->pa_tag;
- pci_intr_type_t intr_type;
char const *intrstr;
pcireg_t csr, memtype, usbrev;
int err;
@@ -177,20 +176,8 @@
pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG,
csr | PCI_COMMAND_MASTER_ENABLE);
- /* Allocation settings */
- int counts[PCI_INTR_TYPE_SIZE] = {
- [PCI_INTR_TYPE_INTX] = 1,
-#ifndef XHCI_DISABLE_MSI
- [PCI_INTR_TYPE_MSI] = 1,
-#endif
-#ifndef XHCI_DISABLE_MSIX
- [PCI_INTR_TYPE_MSIX] = 1,
-#endif
- };
-
-alloc_retry:
/* Allocate and establish the interrupt. */
- if (pci_intr_alloc(pa, &psc->sc_pihp, counts, PCI_INTR_TYPE_MSIX)) {
+ if (pci_intr_alloc(pa, &psc->sc_pihp, NULL, 0)) {
aprint_error_dev(self, "can't allocate handler\n");
goto fail;
}
@@ -199,35 +186,13 @@
psc->sc_ih = pci_intr_establish_xname(pc, psc->sc_pihp[0], IPL_USB,
xhci_intr, sc, device_xname(sc->sc_dev));
if (psc->sc_ih == NULL) {
- intr_type = pci_intr_type(pc, psc->sc_pihp[0]);
pci_intr_release(pc, psc->sc_pihp, 1);
psc->sc_ih = NULL;
- switch (intr_type) {
-#ifndef XHCI_DISABLE_MSIX
- case PCI_INTR_TYPE_MSIX:
- /* The next try is for MSI: Disable MSIX */
- counts[PCI_INTR_TYPE_MSIX] = 0;
-#ifndef XHCI_DISABLE_MSI
- counts[PCI_INTR_TYPE_MSI] = 1;
-#endif
- counts[PCI_INTR_TYPE_INTX] = 1;
- goto alloc_retry;
-#endif
-#ifndef XHCI_DISABLE_MSI
- case PCI_INTR_TYPE_MSI:
- /* The next try is for INTx: Disable MSI */
- counts[PCI_INTR_TYPE_MSI] = 0;
- counts[PCI_INTR_TYPE_INTX] = 1;
- goto alloc_retry;
-#endif
- case PCI_INTR_TYPE_INTX:
- default:
- aprint_error_dev(self, "couldn't establish interrupt");
- if (intrstr != NULL)
- aprint_error(" at %s", intrstr);
- aprint_error("\n");
- goto fail;
- }
+ aprint_error_dev(self, "couldn't establish interrupt");
+ if (intrstr != NULL)
+ aprint_error(" at %s", intrstr);
+ aprint_error("\n");
+ goto fail;
}
aprint_normal_dev(self, "interrupting at %s\n", intrstr);
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