| mps_pci.c (281564) | mps_pci.c (322661) |
|---|---|
| 1/*- 2 * Copyright (c) 2009 Yahoo! Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 11 unchanged lines hidden (view full) --- 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 2009 Yahoo! Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 11 unchanged lines hidden (view full) --- 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> |
| 28__FBSDID("$FreeBSD: stable/10/sys/dev/mps/mps_pci.c 281564 2015-04-15 21:47:15Z slm $"); | 28__FBSDID("$FreeBSD: stable/10/sys/dev/mps/mps_pci.c 322661 2017-08-18 15:38:08Z ken $"); |
| 29 30/* PCI/PCI-X/PCIe bus interface for the Avago Tech (LSI) MPT2 controllers */ 31 32/* TODO Move headers to mpsvar */ 33#include <sys/types.h> 34#include <sys/param.h> 35#include <sys/systm.h> 36#include <sys/kernel.h> --- 26 unchanged lines hidden (view full) --- 63static int mps_pci_probe(device_t); 64static int mps_pci_attach(device_t); 65static int mps_pci_detach(device_t); 66static int mps_pci_suspend(device_t); 67static int mps_pci_resume(device_t); 68static void mps_pci_free(struct mps_softc *); 69static int mps_alloc_msix(struct mps_softc *sc, int msgs); 70static int mps_alloc_msi(struct mps_softc *sc, int msgs); | 29 30/* PCI/PCI-X/PCIe bus interface for the Avago Tech (LSI) MPT2 controllers */ 31 32/* TODO Move headers to mpsvar */ 33#include <sys/types.h> 34#include <sys/param.h> 35#include <sys/systm.h> 36#include <sys/kernel.h> --- 26 unchanged lines hidden (view full) --- 63static int mps_pci_probe(device_t); 64static int mps_pci_attach(device_t); 65static int mps_pci_detach(device_t); 66static int mps_pci_suspend(device_t); 67static int mps_pci_resume(device_t); 68static void mps_pci_free(struct mps_softc *); 69static int mps_alloc_msix(struct mps_softc *sc, int msgs); 70static int mps_alloc_msi(struct mps_softc *sc, int msgs); |
| 71static int mps_pci_alloc_interrupts(struct mps_softc *sc); |
|
| 71 72static device_method_t mps_methods[] = { 73 DEVMETHOD(device_probe, mps_pci_probe), 74 DEVMETHOD(device_attach, mps_pci_attach), 75 DEVMETHOD(device_detach, mps_pci_detach), 76 DEVMETHOD(device_suspend, mps_pci_suspend), 77 DEVMETHOD(device_resume, mps_pci_resume), 78 --- 107 unchanged lines hidden (view full) --- 186 int error; 187 188 sc = device_get_softc(dev); 189 bzero(sc, sizeof(*sc)); 190 sc->mps_dev = dev; 191 m = mps_find_ident(dev); 192 sc->mps_flags = m->flags; 193 | 72 73static device_method_t mps_methods[] = { 74 DEVMETHOD(device_probe, mps_pci_probe), 75 DEVMETHOD(device_attach, mps_pci_attach), 76 DEVMETHOD(device_detach, mps_pci_detach), 77 DEVMETHOD(device_suspend, mps_pci_suspend), 78 DEVMETHOD(device_resume, mps_pci_resume), 79 --- 107 unchanged lines hidden (view full) --- 187 int error; 188 189 sc = device_get_softc(dev); 190 bzero(sc, sizeof(*sc)); 191 sc->mps_dev = dev; 192 m = mps_find_ident(dev); 193 sc->mps_flags = m->flags; 194 |
| 195 mps_get_tunables(sc); 196 |
|
| 194 /* Twiddle basic PCI config bits for a sanity check */ 195 pci_enable_busmaster(dev); 196 197 /* Allocate the System Interface Register Set */ 198 sc->mps_regs_rid = PCIR_BAR(1); 199 if ((sc->mps_regs_resource = bus_alloc_resource_any(dev, 200 SYS_RES_MEMORY, &sc->mps_regs_rid, RF_ACTIVE)) == NULL) { 201 mps_printf(sc, "Cannot allocate PCI registers\n"); --- 14 unchanged lines hidden (view full) --- 216 0, /* flags */ 217 NULL, NULL, /* lockfunc, lockarg */ 218 &sc->mps_parent_dmat)) { 219 mps_printf(sc, "Cannot allocate parent DMA tag\n"); 220 mps_pci_free(sc); 221 return (ENOMEM); 222 } 223 | 197 /* Twiddle basic PCI config bits for a sanity check */ 198 pci_enable_busmaster(dev); 199 200 /* Allocate the System Interface Register Set */ 201 sc->mps_regs_rid = PCIR_BAR(1); 202 if ((sc->mps_regs_resource = bus_alloc_resource_any(dev, 203 SYS_RES_MEMORY, &sc->mps_regs_rid, RF_ACTIVE)) == NULL) { 204 mps_printf(sc, "Cannot allocate PCI registers\n"); --- 14 unchanged lines hidden (view full) --- 219 0, /* flags */ 220 NULL, NULL, /* lockfunc, lockarg */ 221 &sc->mps_parent_dmat)) { 222 mps_printf(sc, "Cannot allocate parent DMA tag\n"); 223 mps_pci_free(sc); 224 return (ENOMEM); 225 } 226 |
| 224 if ((error = mps_attach(sc)) != 0) | 227 if (((error = mps_pci_alloc_interrupts(sc)) != 0) || 228 ((error = mps_attach(sc)) != 0)) |
| 225 mps_pci_free(sc); 226 227 return (error); 228} 229 | 229 mps_pci_free(sc); 230 231 return (error); 232} 233 |
| 230int 231mps_pci_setup_interrupts(struct mps_softc *sc) | 234/* 235 * Allocate, but don't assign interrupts early. Doing it before requesting 236 * the IOCFacts message informs the firmware that we want to do MSI-X 237 * multiqueue. We might not use all of the available messages, but there's 238 * no reason to re-alloc if we don't. 239 */ 240static int 241mps_pci_alloc_interrupts(struct mps_softc *sc) |
| 232{ 233 device_t dev; | 242{ 243 device_t dev; |
| 234 int i, error, msgs; | 244 int error, msgs; |
| 235 236 dev = sc->mps_dev; | 245 246 dev = sc->mps_dev; |
| 237 error = ENXIO; | 247 error = 0; 248 msgs = 0; 249 |
| 238 if ((sc->disable_msix == 0) && 239 ((msgs = pci_msix_count(dev)) >= MPS_MSI_COUNT)) 240 error = mps_alloc_msix(sc, MPS_MSI_COUNT); 241 if ((error != 0) && (sc->disable_msi == 0) && 242 ((msgs = pci_msi_count(dev)) >= MPS_MSI_COUNT)) 243 error = mps_alloc_msi(sc, MPS_MSI_COUNT); | 250 if ((sc->disable_msix == 0) && 251 ((msgs = pci_msix_count(dev)) >= MPS_MSI_COUNT)) 252 error = mps_alloc_msix(sc, MPS_MSI_COUNT); 253 if ((error != 0) && (sc->disable_msi == 0) && 254 ((msgs = pci_msi_count(dev)) >= MPS_MSI_COUNT)) 255 error = mps_alloc_msi(sc, MPS_MSI_COUNT); |
| 256 if (error != 0) 257 msgs = 0; |
|
| 244 | 258 |
| 245 if (error != 0) { | 259 sc->msi_msgs = msgs; 260 return (error); 261} 262 263int 264mps_pci_setup_interrupts(struct mps_softc *sc) 265{ 266 device_t dev; 267 int i, error; 268 269 dev = sc->mps_dev; 270 error = ENXIO; 271 272 if (sc->msi_msgs == 0) { |
| 246 sc->mps_flags |= MPS_FLAGS_INTX; 247 sc->mps_irq_rid[0] = 0; 248 sc->mps_irq[0] = bus_alloc_resource_any(dev, SYS_RES_IRQ, 249 &sc->mps_irq_rid[0], RF_SHAREABLE | RF_ACTIVE); 250 if (sc->mps_irq[0] == NULL) { 251 mps_printf(sc, "Cannot allocate INTx interrupt\n"); 252 return (ENXIO); 253 } --- 128 unchanged lines hidden --- | 273 sc->mps_flags |= MPS_FLAGS_INTX; 274 sc->mps_irq_rid[0] = 0; 275 sc->mps_irq[0] = bus_alloc_resource_any(dev, SYS_RES_IRQ, 276 &sc->mps_irq_rid[0], RF_SHAREABLE | RF_ACTIVE); 277 if (sc->mps_irq[0] == NULL) { 278 mps_printf(sc, "Cannot allocate INTx interrupt\n"); 279 return (ENXIO); 280 } --- 128 unchanged lines hidden --- |