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Alexander Gordeev 5ca72c4f7c AHCI: Support multiple MSIs 
Take advantage of multiple MSIs implementation on x86 - on
systems with IRQ remapping AHCI ports not only get assigned
separate MSI vectors - but also separate IRQs. As result,
interrupts generated by different ports could be serviced on
different CPUs rather than on a single one.

In cases when number of allocated MSIs is less than requested
the Sharing Last MSI mode does not get used, no matter
implemented in hardware or not. Instead, the driver assumes the
advantage of multiple MSIs is negated and falls back to the
single MSI mode as if MRSM bit was set (some Intel chips
implement this strategy anyway - MRSM bit gets set even if the
number of allocated MSIs exceeds the number of implemented ports).

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Matthew Wilcox <willy@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/15bf7ee314dd55f21ec7d2a01c47613cd8190a7c.1353324359.git.agordeev@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
 		2013-01-24 17:25:13 +01:00
..
Kconfig ata: add platform driver for Calxeda AHCI controller 2012-09-13 01:09:41 -04:00
Makefile [libata] Makefile: Fix build error in sata_highbank 2012-10-01 22:50:37 -04:00
acard-ahci.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
ahci.c AHCI: Support multiple MSIs 2013-01-24 17:25:13 +01:00
ahci.h AHCI: Support multiple MSIs 2013-01-24 17:25:13 +01:00
ahci_platform.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
ata_generic.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
ata_piix.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
libahci.c AHCI: Support multiple MSIs 2013-01-24 17:25:13 +01:00
libata-acpi.c libata: restore acpi disable functionality 2012-12-03 04:57:15 -05:00
libata-core.c [libata] replace sata_settings with devslp_timing 2013-01-14 13:29:15 -05:00
libata-eh.c [libata] ahci: Fix lack of command retry after a success error handler. 2013-01-14 13:05:17 -05:00
libata-pmp.c libata: migrate ACPI code over to new bindings 2012-06-29 11:38:11 -04:00
libata-scsi.c [libata] fix Null pointer dereference on disk error 2012-12-14 09:40:34 -05:00
libata-sff.c ata: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:16 +08:00
libata-transport.c libata-transport.c: local functions should not be exposed globally 2012-07-25 15:14:55 -04:00
libata-transport.h [libata] Add ATA transport class 2010-10-21 20:21:03 -04:00
libata.h ahci: implement aggressive SATA device sleep support 2012-09-13 01:08:53 -04:00
pata_acpi.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_ali.c pata_ali: fix "Satelite" typo 2011-10-14 13:10:42 -04:00
pata_amd.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_arasan_cf.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_artop.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_at32.c libata: remove ATA_FLAG_MMIO 2011-03-02 02:36:46 -05:00
pata_at91.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_atiixp.c pata_atiixp: override cable detection on MSI E350DM-E33 2012-08-17 13:26:51 -04:00
pata_atp867x.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_bf54x.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_cmd64x.c ata: Convert dev_printk(KERN_<LEVEL> to dev_<level>( 2012-11-28 12:40:15 -05:00
pata_cmd640.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_cs5520.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_cs5530.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_cs5535.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_cs5536.c pata_cs5536: add quirk for broken udma 2012-11-28 12:38:41 -05:00
pata_cypress.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_efar.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_ep93xx.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_hpt3x2n.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_hpt3x3.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_hpt37x.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_hpt366.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_icside.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_imx.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_isapnp.c
…
pata_it821x.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_it8213.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_ixp4xx_cf.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_jmicron.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_legacy.c pata_legacy: correctly mask recovery field for HT6560B 2012-03-13 12:43:13 -04:00
pata_macio.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_marvell.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_mpc52xx.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_mpiix.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_netcell.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_ninja32.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_ns87410.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_ns87415.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_octeon_cf.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_of_platform.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_oldpiix.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_opti.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_optidma.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_palmld.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_pcmcia.c drivers/ata/pata_pcmcia.c: adjust suspicious bit operation 2012-07-25 15:06:20 -04:00
pata_pdc202xx_old.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_pdc2027x.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_piccolo.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_platform.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_pxa.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_radisys.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_rb532_cf.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_rdc.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_rz1000.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_samsung_cf.c ARM: samsung: move platform_data definitions 2012-09-19 17:42:18 +02:00
pata_sc1200.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_scc.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_sch.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_serverworks.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_sil680.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pata_sis.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_sl82c105.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_triflex.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pata_via.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
pdc_adma.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
sata_dwc_460ex.c sata_dwc_460ex: remove file exec bit (chmod 0755 -> 0644) 2012-12-14 09:43:39 -05:00
sata_fsl.c sata_fsl: add workaround for data length mismatch on freescale V2 controller 2012-09-13 01:09:19 -04:00
sata_highbank.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
sata_inic162x.c sata_inic162x: remove unused variable in inic_scr_read() 2012-11-28 12:39:09 -05:00
sata_mv.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
sata_nv.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
sata_promise.c sata_promise: fix hardreset lockdep error 2012-11-28 12:37:56 -05:00
sata_promise.h
…
sata_qstor.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
sata_sil.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
sata_sil24.c sata_sil24: remove unused variable from sata_sil24.c 2012-11-28 12:39:20 -05:00
sata_sis.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
sata_svw.c sata_svw: check DMA start bit before reset 2012-11-15 23:54:41 -05:00
sata_sx4.c sata_sx4: pdc20621_{ata|host}_sg() do not need 'tf' parameter 2012-11-28 12:39:44 -05:00
sata_uli.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
sata_via.c ata: use module_pci_driver 2012-07-25 15:12:11 -04:00
sata_vsc.c Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
sis.h
…