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authorChad Dupuis <chad.dupuis@qlogic.com>2012-08-22 14:21:00 -0400
committerJames Bottomley <JBottomley@Parallels.com>2012-09-24 12:03:36 +0400
commit5f16b331d83757ad5154af07b449c722fef45d5e (patch)
treee5ba70e771d5de6cf0e2d5ecf7ceb2ae9a90946d /drivers/scsi/qla2xxx/qla_inline.h
parent09543c09ea37e15f806f29f0cdcbcc9417dbfa01 (diff)
[SCSI] qla2xxx: Use bitmap to store loop_id's for fcports.
Store used fcport loop_id's in a bitmap so that as opposed to looping through all fcports to find the next free loop_id, new loop_id lookup can be just be done via bitops. [jejb: plus fix for incorrect LOOPID_MAP_SIZE from Andrew Vasquez] Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com> Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_inline.h')
-rw-r--r--drivers/scsi/qla2xxx/qla_inline.h26
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_inline.h b/drivers/scsi/qla2xxx/qla_inline.h
index 6e457643c63..c12add26171 100644
--- a/drivers/scsi/qla2xxx/qla_inline.h
+++ b/drivers/scsi/qla2xxx/qla_inline.h
@@ -57,6 +57,20 @@ host_to_fcp_swap(uint8_t *fcp, uint32_t bsize)
return fcp;
}
+static inline void
+qla2x00_set_reserved_loop_ids(struct qla_hw_data *ha)
+{
+ int i;
+
+ if (IS_FWI2_CAPABLE(ha))
+ return;
+
+ for (i = 0; i < SNS_FIRST_LOOP_ID; i++)
+ set_bit(i, ha->loop_id_map);
+ set_bit(MANAGEMENT_SERVER, ha->loop_id_map);
+ set_bit(BROADCAST, ha->loop_id_map);
+}
+
static inline int
qla2x00_is_reserved_id(scsi_qla_host_t *vha, uint16_t loop_id)
{
@@ -69,6 +83,18 @@ qla2x00_is_reserved_id(scsi_qla_host_t *vha, uint16_t loop_id)
}
static inline void
+qla2x00_clear_loop_id(fc_port_t *fcport) {
+ struct qla_hw_data *ha = fcport->vha->hw;
+
+ if (fcport->loop_id == FC_NO_LOOP_ID ||
+ qla2x00_is_reserved_id(fcport->vha, fcport->loop_id))
+ return;
+
+ clear_bit(fcport->loop_id, ha->loop_id_map);
+ fcport->loop_id = FC_NO_LOOP_ID;
+}
+
+static inline void
qla2x00_clean_dsd_pool(struct qla_hw_data *ha, srb_t *sp)
{
struct dsd_dma *dsd_ptr, *tdsd_ptr;