isci: preallocate requests
the dma_pool interface is optimized for object_size << page_size which
is not the case with isci_request objects and the dma_pool routines show
up in the top of the profile.
The old io_request_table which tracked whether tci slots were in-flight
or not is replaced with an IREQ_ACTIVE flag per request.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
diff --git a/drivers/scsi/isci/remote_device.c b/drivers/scsi/isci/remote_device.c
index c5ce0f0..5a86bb1 100644
--- a/drivers/scsi/isci/remote_device.c
+++ b/drivers/scsi/isci/remote_device.c
@@ -136,16 +136,19 @@
static enum sci_status scic_sds_remote_device_terminate_requests(struct scic_sds_remote_device *sci_dev)
{
struct scic_sds_controller *scic = sci_dev->owning_port->owning_controller;
+ struct isci_host *ihost = scic_to_ihost(scic);
u32 i, request_count = sci_dev->started_request_count;
enum sci_status status = SCI_SUCCESS;
for (i = 0; i < SCI_MAX_IO_REQUESTS && i < request_count; i++) {
- struct scic_sds_request *sci_req;
+ struct isci_request *ireq = ihost->reqs[i];
+ struct scic_sds_request *sci_req = &ireq->sci;
enum sci_status s;
- sci_req = scic->io_request_table[i];
- if (!sci_req || sci_req->target_device != sci_dev)
+ if (!test_bit(IREQ_ACTIVE, &ireq->flags) ||
+ sci_req->target_device != sci_dev)
continue;
+
s = scic_controller_terminate_request(scic, sci_dev, sci_req);
if (s != SCI_SUCCESS)
status = s;