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Dan Williams d684a90d38 ahci: per-port msix support 
Some AHCI controllers support per-port MSI-X vectors.  At the same time
the Linux AHCI driver needs to support one-off architectures that
implement a single MSI-X vector for all ports.  The heuristic for
enabling AHCI ports becomes, in order of preference:

1/ per-port multi-MSI-X

2/ per-port multi-MSI

3/ single MSI

4/ single MSI-X

5/ legacy INTX

This all depends on AHCI implementations with potentially broken MSI-X
requesting less vectors than the number of ports.  If this assumption is
violated we will need to start explicitly white-listing AHCI-MSIX
implementations.

Reported-by: Ricardo Neri <ricardo.neri@intel.com>
[ricardo: fix struct msix_entry handling]
Reported-by: kernel test robot <ying.huang@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
 		2015-11-16 11:29:10 -05:00
..
Kconfig ahci: added a new driver for supporting Freescale AHCI sata 2015-09-08 12:30:06 -04:00
Makefile ahci: added a new driver for supporting Freescale AHCI sata 2015-09-08 12:30:06 -04:00
acard-ahci.c ahci: Store irq number in struct ahci_host_priv 2015-06-03 01:37:49 -04:00
ahci.c ahci: per-port msix support 2015-11-16 11:29:10 -05:00
ahci.h ahci: per-port msix support 2015-11-16 11:29:10 -05:00
ahci_brcmstb.c ata: ahci_brcmstb: Fix misuse of IS_ENABLED 2015-08-06 14:30:07 -04:00
ahci_ceva.c drivers: ata: add support for Ceva sata host controller 2015-06-10 11:15:17 +09:00
ahci_da850.c ata: ahci_platform: fix owner module reference mismatch for scsi host 2015-01-28 18:45:23 -05:00
ahci_imx.c ata: ahci_platform: fix owner module reference mismatch for scsi host 2015-01-28 18:45:23 -05:00
ahci_mvebu.c Merge branch 'for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata 2015-06-25 16:49:21 -07:00
ahci_platform.c Revert "ahci: added support for Freescale AHCI sata" 2015-09-08 12:30:06 -04:00
ahci_qoriq.c ahci: qoriq: Disable NCQ on ls2080a SoC 2015-10-31 09:52:15 +09:00
ahci_st.c ata: ahci_st: fixup layering violations / drvdata errors 2015-04-20 13:36:38 -04:00
ahci_sunxi.c ata: ahci_platform: fix owner module reference mismatch for scsi host 2015-01-28 18:45:23 -05:00
ahci_tegra.c ata: ahci_platform: fix owner module reference mismatch for scsi host 2015-01-28 18:45:23 -05:00
ahci_xgene.c ata: ahci_xgene: potential NULL dereference in probe 2015-05-18 16:43:23 -04:00
ata_generic.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
ata_piix.c ata_piix: Add Device IDs for Intel 9 Series PCH 2014-08-28 08:53:40 -04:00
libahci.c ahci: per-port msix support 2015-11-16 11:29:10 -05:00
libahci_platform.c ahci: Store irq number in struct ahci_host_priv 2015-06-03 01:37:49 -04:00
libata-acpi.c ACPI and power management updates for 3.15-rc1 2014-04-01 12:48:54 -07:00
libata-core.c Merge branch 'for-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata 2015-09-02 08:00:54 -07:00
libata-eh.c Revert "libata: Implement NCQ autosense" 2015-08-03 12:01:54 -04:00
libata-pmp.c ata: pmp: add quirk for Marvell 4140 SATA PMP 2015-07-14 17:46:38 -04:00
libata-scsi.c SCSI misc on 20151113 2015-11-13 20:35:54 -08:00
libata-sff.c ata: remove deprecated use of pci api 2015-04-08 10:55:05 -04:00
libata-trace.c libata: Add tracepoints 2015-03-27 11:59:22 -04:00
libata-transport.c libata: add ATA_HORKAGE_NOTRIM 2015-07-15 11:22:35 -04:00
libata-transport.h [libata] Add ATA transport class 2010-10-21 20:21:03 -04:00
libata-zpodd.c libata: zpodd: eliminate odd_can_poweroff 2014-03-14 11:23:47 -04:00
libata.h Revert "libata: Implement NCQ autosense" 2015-08-03 12:01:54 -04:00
pata_acpi.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
pata_ali.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
pata_amd.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
pata_arasan_cf.c Merge branch 'for-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata 2015-09-02 08:00:54 -07:00
pata_artop.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
pata_at32.c ata: drop owner assignment from platform_drivers 2014-10-20 16:20:17 +02:00
pata_at91.c ata: at91: use syscon to configure the smc 2015-05-20 16:36:50 +02:00
pata_atiixp.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
pata_atp867x.c ata: remove deprecated use of pci api 2015-04-08 10:55:05 -04:00
pata_bf54x.c ata: drop owner assignment from platform_drivers 2014-10-20 16:20:17 +02:00
pata_cmd64x.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
pata_cmd640.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
pata_cs5520.c ata: remove deprecated use of pci api 2015-04-08 10:55:05 -04:00
pata_cs5530.c ata: Delete unnecessary checks before the function call "pci_dev_put" 2015-02-03 07:04:44 -05:00
pata_cs5535.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
pata_cs5536.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
pata_cypress.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
pata_efar.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
pata_ep93xx.c ata: drop owner assignment from platform_drivers 2014-10-20 16:20:17 +02:00
pata_hpt3x2n.c ata: delete non-required instances of include <linux/init.h> 2014-02-13 16:40:56 -05:00
pata_hpt3x3.c ata: remove deprecated use of pci api 2015-04-08 10:55:05 -04:00
pata_hpt37x.c ata: delete non-required instances of include <linux/init.h> 2014-02-13 16:40:56 -05:00
pata_hpt366.c ata: hpt366: fix constant cast warning 2015-05-21 17:37:51 -04:00
pata_icside.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_imx.c ata: drop owner assignment from platform_drivers 2014-10-20 16:20:17 +02:00
pata_isapnp.c PNP: ata/pata_isapnp: Use module_pnp_driver to register driver 2015-03-18 22:39:17 +01:00
pata_it821x.c pata_it821x: use "const char *" for string literals 2015-10-15 10:58:53 -04:00
pata_it8213.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
pata_ixp4xx_cf.c ata: drop owner assignment from platform_drivers 2014-10-20 16:20:17 +02:00
pata_jmicron.c PCI: Disable async suspend/resume for JMicron multi-function SATA/AHCI 2015-08-24 15:27:11 -05:00
pata_legacy.c pata_legacy: Remove dead code 2014-03-11 08:30:53 -04:00
pata_macio.c ata: pata_macio: Fix module autoload for OF platform driver 2015-09-17 11:14:25 -04:00
pata_marvell.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
pata_mpc52xx.c ata: drop owner assignment from platform_drivers 2014-10-20 16:20:17 +02:00
pata_mpiix.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
pata_netcell.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
pata_ninja32.c ata: remove deprecated use of pci api 2015-04-08 10:55:05 -04:00
pata_ns87410.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
pata_ns87415.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
pata_octeon_cf.c pata_octeon_cf: fix broken build 2015-06-08 18:03:04 +09:00
pata_of_platform.c ata: pata_platform: fix owner module reference mismatch for scsi host 2015-01-28 18:45:23 -05:00
pata_oldpiix.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
pata_opti.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
pata_optidma.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
pata_palmld.c ata: drop owner assignment from platform_drivers 2014-10-20 16:20:17 +02:00
pata_pcmcia.c ata: delete non-required instances of include <linux/init.h> 2014-02-13 16:40:56 -05:00
pata_pdc202xx_old.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
pata_pdc2027x.c ata: remove deprecated use of pci api 2015-04-08 10:55:05 -04:00
pata_piccolo.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
pata_platform.c ata: pata_platform: fix owner module reference mismatch for scsi host 2015-01-28 18:45:23 -05:00
pata_pxa.c ata: pata_pxa: dmaengine conversion 2015-09-10 17:02:04 -04:00
pata_radisys.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
pata_rb532_cf.c MIPS: Remove all the uses of custom gpio.h 2015-09-03 12:08:02 +02:00
pata_rdc.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
pata_rz1000.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
pata_samsung_cf.c libata: samsung_cf: fix handling platform_get_irq result 2015-09-25 11:50:15 -04:00
pata_sc1200.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
pata_sch.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
pata_serverworks.c pata_serverworks: disable 64-KB DMA transfers on Broadcom OSB4 IDE Controller 2014-10-07 17:10:14 -04:00
pata_sil680.c ata: remove deprecated use of pci api 2015-04-08 10:55:05 -04:00
pata_sis.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
pata_sl82c105.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
pata_triflex.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
pata_via.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
pdc_adma.c ata: remove deprecated use of pci api 2015-04-08 10:55:05 -04:00
sata_dwc_460ex.c sata_dwc_460ex: indent an if statement 2015-03-30 13:14:40 -04:00
sata_fsl.c sata-fsl: Apply link speed limits 2015-03-02 12:08:43 -05:00
sata_highbank.c ahci: Store irq number in struct ahci_host_priv 2015-06-03 01:37:49 -04:00
sata_inic162x.c ata: remove deprecated use of pci api 2015-04-08 10:55:05 -04:00
sata_mv.c ata: remove deprecated use of pci api 2015-04-08 10:55:05 -04:00
sata_nv.c ata:sata_nv - Change 1 to true for bool type variable. 2015-05-25 20:06:55 -04:00
sata_promise.c ata: remove deprecated use of pci api 2015-04-08 10:55:05 -04:00
sata_promise.h
…
sata_qstor.c ata: remove deprecated use of pci api 2015-04-08 10:55:05 -04:00
sata_rcar.c ata: sata_rcar: Remove obsolete sata-r8a779* platform_device_id entries 2015-07-14 17:38:43 -04:00
sata_sil.c ata: remove deprecated use of pci api 2015-04-08 10:55:05 -04:00
sata_sil24.c ata: remove deprecated use of pci api 2015-04-08 10:55:05 -04:00
sata_sis.c ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers 2014-05-09 22:37:49 -04:00
sata_svw.c powerpc updates for 4.1 2015-04-16 13:53:32 -05:00
sata_sx4.c sata_sx4: Check return code from pdc20621_i2c_read() 2015-08-06 12:38:14 -04:00
sata_uli.c ata: delete non-required instances of include <linux/init.h> 2014-02-13 16:40:56 -05:00
sata_via.c ata: remove deprecated use of pci api 2015-04-08 10:55:05 -04:00
sata_vsc.c ata: remove deprecated use of pci api 2015-04-08 10:55:05 -04:00
sis.h
…