staging/rdma/hfi1: Consolidate CPU/IRQ affinity support
This patch unifies the affinity support for CPU and IRQ allocations into
a single code base. The goal is to allow the driver to make intelligent
placement decision based on an overall view of processes and IRQs across
as much of the driver as possible.
Pulling all the scattered affinity code into a single code base lays the
ground work for accomplishing the above goal. For example, previous
implementations made user process placement decision solely based on
other user processes. This algorithm is limited as it did not take into
account IRQ placement and could result in overloading certain CPUs.
A single code base also provides a much easier way to maintain and debug
any performance issues related to affinity.
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Dean Luick <dean.luick@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Mitko Haralanov <mitko.haralanov@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
diff --git a/drivers/staging/rdma/hfi1/hfi.h b/drivers/staging/rdma/hfi1/hfi.h
index 897046c..571e7b1 100644
--- a/drivers/staging/rdma/hfi1/hfi.h
+++ b/drivers/staging/rdma/hfi1/hfi.h
@@ -75,6 +75,7 @@
#include "mad.h"
#include "qsfp.h"
#include "platform.h"
+#include "affinity.h"
/* bumped 1 from s/w major version of TrueScale */
#define HFI1_CHIP_VERS_MAJ 3U
@@ -529,10 +530,11 @@
#define MAX_NAME_SIZE 64
struct hfi1_msix_entry {
+ enum irq_type type;
struct msix_entry msix;
void *arg;
char name[MAX_NAME_SIZE];
- cpumask_var_t mask;
+ cpumask_t mask;
};
/* per-SL CCA information */
@@ -1144,6 +1146,8 @@
spinlock_t aspm_lock;
/* Number of verbs contexts which have disabled ASPM */
atomic_t aspm_disabled_cnt;
+
+ struct hfi1_affinity *affinity;
};
/* 8051 firmware version helper */
@@ -1197,7 +1201,7 @@
int hfi1_create_rcvhdrq(struct hfi1_devdata *, struct hfi1_ctxtdata *);
int hfi1_setup_eagerbufs(struct hfi1_ctxtdata *);
int hfi1_create_ctxts(struct hfi1_devdata *dd);
-struct hfi1_ctxtdata *hfi1_create_ctxtdata(struct hfi1_pportdata *, u32);
+struct hfi1_ctxtdata *hfi1_create_ctxtdata(struct hfi1_pportdata *, u32, int);
void hfi1_init_pportdata(struct pci_dev *, struct hfi1_pportdata *,
struct hfi1_devdata *, u8, u8);
void hfi1_free_ctxtdata(struct hfi1_devdata *, struct hfi1_ctxtdata *);