mtip32xx: Add workqueue and NUMA support

This patch contains
	* parallel command completion using workers
	* bind the workers to the chosen numa node
	* bind isr to the chosen numa node
	* allocating memory in the chosen numa node

Signed-off-by: Asai Thambi S P <asamymuthupa@micron.com>
Signed-off-by: Sam Bradshaw <sbradshaw@micron.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

1 files changed, 27 insertions, 4 deletions

diff --git a/drivers/block/mtip32xx/mtip32xx.h b/drivers/block/mtip32xx/mtip32xx.h
index b1742640556a..d782b1aa913e 100644
--- a/drivers/block/mtip32xx/mtip32xx.h
+++ b/drivers/block/mtip32xx/mtip32xx.h
@@ -164,6 +164,20 @@ struct smart_attr {
         u8 res[3];
 } __packed;
 
+struct mtip_work {
+        struct work_struct work;
+        void *port;
+        int cpu_binding;
+        u32 completed;
+} ____cacheline_aligned_in_smp;
+
+#define DEFINE_HANDLER(group)                                  \
+        void mtip_workq_sdbf##group(struct work_struct *work)       \
+        {                                                      \
+                struct mtip_work *w = (struct mtip_work *) work;         \
+                mtip_workq_sdbfx(w->port, group, w->completed);     \
+        }
+
 /* Register Frame Information Structure (FIS), host to device. */
 struct host_to_dev_fis {
         /*
@@ -424,7 +438,7 @@ struct mtip_port {
          */
         struct semaphore cmd_slot;
         /* Spinlock for working around command-issue bug. */
-        spinlock_t cmd_issue_lock;
+        spinlock_t cmd_issue_lock[MTIP_MAX_SLOT_GROUPS];
 };
 
 /*
@@ -447,9 +461,6 @@ struct driver_data {
 
         struct mtip_port *port; /* Pointer to the port data structure. */
 
-        /* Tasklet used to process the bottom half of the ISR. */
-        struct tasklet_struct tasklet;
-
         unsigned product_type; /* magic value declaring the product type */
 
         unsigned slot_groups; /* number of slot groups the product supports */
@@ -461,6 +472,18 @@ struct driver_data {
         struct task_struct *mtip_svc_handler; /* task_struct of svc thd */
 
         struct dentry *dfs_node;
+
+        int numa_node; /* NUMA support */
+
+        char workq_name[32];
+
+        struct workqueue_struct *isr_workq;
+
+        struct mtip_work work[MTIP_MAX_SLOT_GROUPS];
+
+        atomic_t irq_workers_active;
+
+        int isr_binding;
 };
 
 #endif