5045 use atomic_{inc,dec}_* instead of atomic_add_*

@@ -1234,11 +1234,11 @@
          * Here we should add dl_cnt before post recv, because
          * we would have to make sure dl_cnt is updated before
          * the corresponding ibd_rc_process_rx() is called.
          */
         ASSERT(state->rc_srq_rwqe_list.dl_cnt < state->rc_srq_size);
-        atomic_add_32(&state->rc_srq_rwqe_list.dl_cnt, 1);
+        atomic_inc_32(&state->rc_srq_rwqe_list.dl_cnt);
         if (ibt_post_srq(state->rc_srq_hdl, &rwqe->w_rwr, 1, NULL) !=
             IBT_SUCCESS) {
                 atomic_dec_32(&state->rc_srq_rwqe_list.dl_cnt);
                 DPRINT(40, "ibd_rc_post_srq : ibt_post_srq() failed");
                 return (DDI_FAILURE);

@@ -1256,11 +1256,11 @@
         /*
          * Here we should add dl_cnt before post recv, because we would
          * have to make sure dl_cnt has already updated before
          * corresponding ibd_rc_process_rx() is called.
          */
-        atomic_add_32(&chan->rx_wqe_list.dl_cnt, 1);
+        atomic_inc_32(&chan->rx_wqe_list.dl_cnt);
         if (ibt_post_recv(chan->chan_hdl, &rwqe->w_rwr, 1, NULL) !=
             IBT_SUCCESS) {
                 atomic_dec_32(&chan->rx_wqe_list.dl_cnt);
                 DPRINT(40, "ibd_rc_post_rwqe : failed in ibt_post_recv()");
                 return (DDI_FAILURE);

@@ -1497,15 +1497,14 @@
                 /*
                  * Record how many rwqe has been occupied by upper
                  * network layer
                  */
                 if (state->rc_enable_srq) {
-                        atomic_add_32(&state->rc_srq_rwqe_list.
-                            dl_bufs_outstanding, 1);
+                        atomic_inc_32(
+                            &state->rc_srq_rwqe_list.dl_bufs_outstanding);
                 } else {
-                        atomic_add_32(&chan->rx_wqe_list.
-                            dl_bufs_outstanding, 1);
+                        atomic_inc_32(&chan->rx_wqe_list.dl_bufs_outstanding);
                 }
                 mp = rwqe->rwqe_im_mblk;
         } else {
                 atomic_add_64(&state->rc_rcv_copy_byte, wc->wc_bytes_xfer);
                 atomic_inc_64(&state->rc_rcv_copy_pkt);

@@ -1667,11 +1666,11 @@
          */
         if (ibd_rc_post_rwqe(chan, rwqe) == DDI_FAILURE) {
                 ibd_rc_free_rwqe(chan, rwqe);
                 return;
         }
-        atomic_add_32(&chan->rx_wqe_list.dl_bufs_outstanding, -1);
+        atomic_dec_32(&chan->rx_wqe_list.dl_bufs_outstanding);
 }
 
 /*
  * Common code for interrupt handling as well as for polling
  * for all completed wqe's while detaching.