linux/drivers/scsi/mpt3sas
Sreekanth Reddy 14b3114d94 mpt2sas, mpt3sas: set cpu affinity for each MSIX vectors
Added a support to set cpu affinity mask for each MSIX vector enabled
by the HBA. So that, running the irqbalancer will balance interrupts among
the cpus.

Change_set:
1. Added affinity_hint varable of type cpumask_var_t in adapter_reply_queue
   structure. And allocated a memory for this varable by calling
   alloc_cpumask_var.
2. Call the API irq_set_affinity_hint for each MSIx vector to affiniate it
   with calculated cpus at driver inilization time.
3. While freeing the MSIX vector, call this same API to release the cpu
   affinity mask for each MSIx vector by providing the NULL value in
   cpumask argument.
4. then call the free_cpumask_var API to free the memory allocated in step 2.

Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2015-01-13 16:27:28 +01:00
..
mpi mpt3sas: Copyright in driver sources is updated for year the 2014. 2014-09-16 09:14:19 -07:00
Kconfig mpt3sas: Copyright in driver sources is updated for year the 2014. 2014-09-16 09:14:19 -07:00
Makefile [SCSI] Allow MPT Fusion SAS 3.0 driver to be built into the kernel 2013-09-06 11:42:53 -07:00
mpt3sas_base.c mpt2sas, mpt3sas: set cpu affinity for each MSIX vectors 2015-01-13 16:27:28 +01:00
mpt3sas_base.h mpt2sas, mpt3sas: set cpu affinity for each MSIX vectors 2015-01-13 16:27:28 +01:00
mpt3sas_config.c mpt2sas, mpt3sas: Update attribution language to Avago 2015-01-13 16:27:27 +01:00
mpt3sas_ctl.c mpt2sas, mpt3sas: Update attribution language to Avago 2015-01-13 16:27:27 +01:00
mpt3sas_ctl.h mpt2sas, mpt3sas: Update attribution language to Avago 2015-01-13 16:27:27 +01:00
mpt3sas_debug.h mpt2sas, mpt3sas: Update attribution language to Avago 2015-01-13 16:27:27 +01:00
mpt3sas_scsih.c mpt2sas, mpt3sas: Update attribution language to Avago 2015-01-13 16:27:27 +01:00
mpt3sas_transport.c mpt2sas, mpt3sas: Update attribution language to Avago 2015-01-13 16:27:27 +01:00
mpt3sas_trigger_diag.c mpt2sas, mpt3sas: Update attribution language to Avago 2015-01-13 16:27:27 +01:00
mpt3sas_trigger_diag.h mpt2sas, mpt3sas: Update attribution language to Avago 2015-01-13 16:27:27 +01:00