freebsd-dev/sys/dev/mpr/mpr_pci.c
Stephen McConnell a2c1487946 The wrong commit message was given with r283632. This is the correct message.
- Updated all files with 2015 Avago copyright, and updated LSI's copyright
  dates.

- Changed all of the PCI device strings from LSI to Avago Technologies (LSI).

- Added a sysctl variable to control how StartStopUnit behavior works. User can
  select to spin down disks based on if disk is SSD or HDD.

- Inquiry data is required to tell if a disk will support SSU at shutdown or
  not. Due to the addition of mpssas_async, which gets Advanced Info but not
  Inquiry data, the setting of supports_SSU was moved to the
  mpssas_scsiio_complete function, which snoops for any Inquiry commands. And,
  since disks are shutdown as a target and not a LUN, this process was
  simplified by basing it on targets and not LUNs.

- Added a sysctl variable that sets the amount of time to retry after sending a
  failed SATA ID command. This helps with some bad disks and large disks that
  require a lot of time to spin up. Part of this change was to add a callout to
  handle timeouts with the SATA ID command. The callout function is called
  mpssas_ata_id_timeout(). (Fixes PR 191348)

- Changed the way resets work by allowing I/O to continue to devices that are
  not currently under a reset condition. This uses devq's instead of simq's and
  makes use of the MPSSAS_TARGET_INRESET flag. This change also adds a function
  called mpssas_prepare_tm().

- Some changes were made to reduce code duplication when getting a SAS address
  for a SATA disk.

- Fixed some formatting and whitespace.

- Bump version of mps driver to 9.255.01.00-fbsd

PR:		191348
Reviewed by:	ken, scottl
Approved by:	ken, scottl
MFC after:	1 week
2015-05-28 18:24:22 +00:00

351 lines
9.1 KiB
C

/*-
* Copyright (c) 2009 Yahoo! Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/* PCI/PCI-X/PCIe bus interface for the Avago Tech (LSI) MPT3 controllers */
/* TODO Move headers to mprvar */
#include <sys/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/malloc.h>
#include <sys/sysctl.h>
#include <sys/uio.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pci_private.h>
#include <dev/mpr/mpi/mpi2_type.h>
#include <dev/mpr/mpi/mpi2.h>
#include <dev/mpr/mpi/mpi2_ioc.h>
#include <dev/mpr/mpi/mpi2_cnfg.h>
#include <dev/mpr/mpi/mpi2_tool.h>
#include <sys/queue.h>
#include <sys/kthread.h>
#include <dev/mpr/mpr_ioctl.h>
#include <dev/mpr/mprvar.h>
static int mpr_pci_probe(device_t);
static int mpr_pci_attach(device_t);
static int mpr_pci_detach(device_t);
static int mpr_pci_suspend(device_t);
static int mpr_pci_resume(device_t);
static void mpr_pci_free(struct mpr_softc *);
static int mpr_alloc_msix(struct mpr_softc *sc, int msgs);
static int mpr_alloc_msi(struct mpr_softc *sc, int msgs);
static device_method_t mpr_methods[] = {
DEVMETHOD(device_probe, mpr_pci_probe),
DEVMETHOD(device_attach, mpr_pci_attach),
DEVMETHOD(device_detach, mpr_pci_detach),
DEVMETHOD(device_suspend, mpr_pci_suspend),
DEVMETHOD(device_resume, mpr_pci_resume),
DEVMETHOD(bus_print_child, bus_generic_print_child),
DEVMETHOD(bus_driver_added, bus_generic_driver_added),
{ 0, 0 }
};
static driver_t mpr_pci_driver = {
"mpr",
mpr_methods,
sizeof(struct mpr_softc)
};
static devclass_t mpr_devclass;
DRIVER_MODULE(mpr, pci, mpr_pci_driver, mpr_devclass, 0, 0);
MODULE_DEPEND(mpr, cam, 1, 1, 1);
struct mpr_ident {
uint16_t vendor;
uint16_t device;
uint16_t subvendor;
uint16_t subdevice;
u_int flags;
const char *desc;
} mpr_identifiers[] = {
{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3004,
0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS3004" },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3008,
0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS3008" },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_1,
0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS3108_1" },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_2,
0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS3108_2" },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_5,
0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS3108_5" },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_6,
0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS3108_6" },
{ 0, 0, 0, 0, 0, NULL }
};
static struct mpr_ident *
mpr_find_ident(device_t dev)
{
struct mpr_ident *m;
for (m = mpr_identifiers; m->vendor != 0; m++) {
if (m->vendor != pci_get_vendor(dev))
continue;
if (m->device != pci_get_device(dev))
continue;
if ((m->subvendor != 0xffff) &&
(m->subvendor != pci_get_subvendor(dev)))
continue;
if ((m->subdevice != 0xffff) &&
(m->subdevice != pci_get_subdevice(dev)))
continue;
return (m);
}
return (NULL);
}
static int
mpr_pci_probe(device_t dev)
{
struct mpr_ident *id;
if ((id = mpr_find_ident(dev)) != NULL) {
device_set_desc(dev, id->desc);
return (BUS_PROBE_DEFAULT);
}
return (ENXIO);
}
static int
mpr_pci_attach(device_t dev)
{
struct mpr_softc *sc;
struct mpr_ident *m;
int error;
sc = device_get_softc(dev);
bzero(sc, sizeof(*sc));
sc->mpr_dev = dev;
m = mpr_find_ident(dev);
sc->mpr_flags = m->flags;
/* Twiddle basic PCI config bits for a sanity check */
pci_enable_busmaster(dev);
/* Allocate the System Interface Register Set */
sc->mpr_regs_rid = PCIR_BAR(1);
if ((sc->mpr_regs_resource = bus_alloc_resource_any(dev,
SYS_RES_MEMORY, &sc->mpr_regs_rid, RF_ACTIVE)) == NULL) {
mpr_printf(sc, "Cannot allocate PCI registers\n");
return (ENXIO);
}
sc->mpr_btag = rman_get_bustag(sc->mpr_regs_resource);
sc->mpr_bhandle = rman_get_bushandle(sc->mpr_regs_resource);
/* Allocate the parent DMA tag */
if (bus_dma_tag_create( bus_get_dma_tag(dev), /* parent */
1, 0, /* algnmnt, boundary */
BUS_SPACE_MAXADDR, /* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
BUS_SPACE_MAXSIZE_32BIT,/* maxsize */
BUS_SPACE_UNRESTRICTED, /* nsegments */
BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */
0, /* flags */
NULL, NULL, /* lockfunc, lockarg */
&sc->mpr_parent_dmat)) {
mpr_printf(sc, "Cannot allocate parent DMA tag\n");
mpr_pci_free(sc);
return (ENOMEM);
}
if ((error = mpr_attach(sc)) != 0)
mpr_pci_free(sc);
return (error);
}
int
mpr_pci_setup_interrupts(struct mpr_softc *sc)
{
device_t dev;
int i, error, msgs;
dev = sc->mpr_dev;
error = ENXIO;
if ((sc->disable_msix == 0) &&
((msgs = pci_msix_count(dev)) >= MPR_MSI_COUNT))
error = mpr_alloc_msix(sc, MPR_MSI_COUNT);
if ((error != 0) && (sc->disable_msi == 0) &&
((msgs = pci_msi_count(dev)) >= MPR_MSI_COUNT))
error = mpr_alloc_msi(sc, MPR_MSI_COUNT);
if (error != 0) {
sc->mpr_flags |= MPR_FLAGS_INTX;
sc->mpr_irq_rid[0] = 0;
sc->mpr_irq[0] = bus_alloc_resource_any(dev, SYS_RES_IRQ,
&sc->mpr_irq_rid[0], RF_SHAREABLE | RF_ACTIVE);
if (sc->mpr_irq[0] == NULL) {
mpr_printf(sc, "Cannot allocate INTx interrupt\n");
return (ENXIO);
}
error = bus_setup_intr(dev, sc->mpr_irq[0],
INTR_TYPE_BIO | INTR_MPSAFE, NULL, mpr_intr, sc,
&sc->mpr_intrhand[0]);
if (error)
mpr_printf(sc, "Cannot setup INTx interrupt\n");
} else {
sc->mpr_flags |= MPR_FLAGS_MSI;
for (i = 0; i < MPR_MSI_COUNT; i++) {
sc->mpr_irq_rid[i] = i + 1;
sc->mpr_irq[i] = bus_alloc_resource_any(dev,
SYS_RES_IRQ, &sc->mpr_irq_rid[i], RF_ACTIVE);
if (sc->mpr_irq[i] == NULL) {
mpr_printf(sc,
"Cannot allocate MSI interrupt\n");
return (ENXIO);
}
error = bus_setup_intr(dev, sc->mpr_irq[i],
INTR_TYPE_BIO | INTR_MPSAFE, NULL, mpr_intr_msi,
sc, &sc->mpr_intrhand[i]);
if (error) {
mpr_printf(sc,
"Cannot setup MSI interrupt %d\n", i);
break;
}
}
}
return (error);
}
static int
mpr_pci_detach(device_t dev)
{
struct mpr_softc *sc;
int error;
sc = device_get_softc(dev);
if ((error = mpr_free(sc)) != 0)
return (error);
mpr_pci_free(sc);
return (0);
}
static void
mpr_pci_free(struct mpr_softc *sc)
{
int i;
if (sc->mpr_parent_dmat != NULL) {
bus_dma_tag_destroy(sc->mpr_parent_dmat);
}
if (sc->mpr_flags & MPR_FLAGS_MSI) {
for (i = 0; i < MPR_MSI_COUNT; i++) {
if (sc->mpr_irq[i] != NULL) {
bus_teardown_intr(sc->mpr_dev, sc->mpr_irq[i],
sc->mpr_intrhand[i]);
bus_release_resource(sc->mpr_dev, SYS_RES_IRQ,
sc->mpr_irq_rid[i], sc->mpr_irq[i]);
}
}
pci_release_msi(sc->mpr_dev);
}
if (sc->mpr_flags & MPR_FLAGS_INTX) {
bus_teardown_intr(sc->mpr_dev, sc->mpr_irq[0],
sc->mpr_intrhand[0]);
bus_release_resource(sc->mpr_dev, SYS_RES_IRQ,
sc->mpr_irq_rid[0], sc->mpr_irq[0]);
}
if (sc->mpr_regs_resource != NULL) {
bus_release_resource(sc->mpr_dev, SYS_RES_MEMORY,
sc->mpr_regs_rid, sc->mpr_regs_resource);
}
return;
}
static int
mpr_pci_suspend(device_t dev)
{
return (EINVAL);
}
static int
mpr_pci_resume(device_t dev)
{
return (EINVAL);
}
static int
mpr_alloc_msix(struct mpr_softc *sc, int msgs)
{
int error;
error = pci_alloc_msix(sc->mpr_dev, &msgs);
return (error);
}
static int
mpr_alloc_msi(struct mpr_softc *sc, int msgs)
{
int error;
error = pci_alloc_msi(sc->mpr_dev, &msgs);
return (error);
}
int
mpr_pci_restore(struct mpr_softc *sc)
{
struct pci_devinfo *dinfo;
mpr_dprint(sc, MPR_TRACE, "%s\n", __func__);
dinfo = device_get_ivars(sc->mpr_dev);
if (dinfo == NULL) {
mpr_dprint(sc, MPR_FAULT, "%s: NULL dinfo\n", __func__);
return (EINVAL);
}
pci_cfg_restore(sc->mpr_dev, dinfo);
return (0);
}