MFV: illumos-gate@bbb9d5d65bf8372aae4b8821c80e218b8b832846
9994 cxgbe t4nex: Handle get_fl_payload() alloc failures
9995 cxgbe t4_devo_attach() should initialize ->sfl
Reviewed by: Toomas Soome <tsoome@me.com>
Reviewed by: Garrett D'Amore <garrett@damore.org>
Approved by: Dan McDonald <danmcd@joyent.com>
Author: John Levon <john.levon@joyent.com>
9484 cxgbe should clean TX descriptors in timely manner
Reviewed by: Patrick Mooney <patrick.mooney@joyent.com>
Reviewed by: Ryan Zezeski <rpz@joyent.com>
Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>
Reviewed by: Toomas Soome <tsoome@me.com>
Approved by: Dan McDonald <danmcd@joyent.com>

*** 314,323 ****
--- 314,324 ----
          sc->dip = dip;
          sc->dev = makedevice(ddi_driver_major(dip), instance);
          mutex_init(&sc->lock, NULL, MUTEX_DRIVER, NULL);
          cv_init(&sc->cv, NULL, CV_DRIVER, NULL);
          mutex_init(&sc->sfl_lock, NULL, MUTEX_DRIVER, NULL);
+         TAILQ_INIT(&sc->sfl);
  
          mutex_enter(&t4_adapter_list_lock);
          SLIST_INSERT_HEAD(&t4_adapter_list, sc, link);
          mutex_exit(&t4_adapter_list_lock);
  
*** 367,376 ****
--- 368,391 ----
  
          for (i = 0; i < ARRAY_SIZE(sc->fw_msg_handler); i++) {
                  sc->fw_msg_handler[i] = fw_msg_not_handled;
          }
   
+         for (i = 0; i < NCHAN; i++) {
+                 (void) snprintf(name, sizeof (name), "%s-%d",
+                                 "reclaim", i);
+                 sc->tq[i] = ddi_taskq_create(sc->dip,
+                    name, 1, TASKQ_DEFAULTPRI, 0);
+ 
+                 if (sc->tq[i] == NULL) {
+                         cxgb_printf(dip, CE_WARN,
+                                    "failed to create task queues");
+                         rc = DDI_FAILURE;
+                         goto done;
+                 }
+         }
+ 
          /*
           * Prepare the adapter for operation.
           */
          rc = -t4_prep_adapter(sc, false);
          if (rc != 0) {
*** 834,843 ****
--- 849,865 ----
  
          /* Safe to call no matter what */
          ddi_prop_remove_all(dip);
          ddi_remove_minor_node(dip, NULL);
  
+         for (i = 0; i < NCHAN; i++) {
+                 if (sc->tq[i]) {
+                         ddi_taskq_wait(sc->tq[i]);
+                         ddi_taskq_destroy(sc->tq[i]);
+                 }
+         }
+ 
          if (sc->ksp != NULL)
                  kstat_delete(sc->ksp);
          if (sc->ksp_stat != NULL)
                  kstat_delete(sc->ksp_stat);