Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel…

…/git/roland/infiniband

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  RDMA/cxgb3: Wrap the software send queue pointer as needed on flush
  IB/ipath: Change ipath_devdata.ipath_sdma_status to be unsigned long
  IB/ipath: Make ipath_portdata work with struct pid * not pid_t
  IB/ipath: Fix RDMA read response sequence checking
  IB/ipath: Fix many locking issues when switching to error state
  IB/ipath: Fix RC and UC error handling
  RDMA/nes: Fix up nes_lro_max_aggr module parameter

drivers/infiniband/hw/cxgb3/cxio_hal.c

@@ -405,11 +405,11 @@ int cxio_flush_sq(struct t3_wq *wq, struct t3_cq *cq, int count)
 	struct t3_swsq *sqp = wq->sq + Q_PTR2IDX(wq->sq_rptr, wq->sq_size_log2);
 
 	ptr = wq->sq_rptr + count;
-	sqp += count;
+	sqp = wq->sq + Q_PTR2IDX(ptr, wq->sq_size_log2);
 	while (ptr != wq->sq_wptr) {
 		insert_sq_cqe(wq, cq, sqp);
-		sqp++;
 		ptr++;
+		sqp = wq->sq + Q_PTR2IDX(ptr, wq->sq_size_log2);
 		flushed++;
 	}
 	return flushed;

drivers/infiniband/hw/ipath/ipath_driver.c

@@ -1894,7 +1894,7 @@ void ipath_cancel_sends(struct ipath_devdata *dd, int restore_sendctrl)
 	 */
 	if (dd->ipath_flags & IPATH_HAS_SEND_DMA) {
 		int skip_cancel;
-		u64 *statp = &dd->ipath_sdma_status;
+		unsigned long *statp = &dd->ipath_sdma_status;
 
 		spin_lock_irqsave(&dd->ipath_sdma_lock, flags);
 		skip_cancel =
@@ -2616,7 +2616,7 @@ int ipath_reset_device(int unit)
 				ipath_dbg("unit %u port %d is in use "
 					  "(PID %u cmd %s), can't reset\n",
 					  unit, i,
-					  dd->ipath_pd[i]->port_pid,
+					  pid_nr(dd->ipath_pd[i]->port_pid),
 					  dd->ipath_pd[i]->port_comm);
 				ret = -EBUSY;
 				goto bail;
@@ -2654,28 +2654,30 @@ int ipath_reset_device(int unit)
 static int ipath_signal_procs(struct ipath_devdata *dd, int sig)
 {
 	int i, sub, any = 0;
-	pid_t pid;
+	struct pid *pid;
 
 	if (!dd->ipath_pd)
 		return 0;
 	for (i = 1; i < dd->ipath_cfgports; i++) {
-		if (!dd->ipath_pd[i] || !dd->ipath_pd[i]->port_cnt ||
-		    !dd->ipath_pd[i]->port_pid)
+		if (!dd->ipath_pd[i] || !dd->ipath_pd[i]->port_cnt)
 			continue;
 		pid = dd->ipath_pd[i]->port_pid;
+		if (!pid)
+			continue;
+
 		dev_info(&dd->pcidev->dev, "context %d in use "
 			  "(PID %u), sending signal %d\n",
-			  i, pid, sig);
-		kill_proc(pid, sig, 1);
+			  i, pid_nr(pid), sig);
+		kill_pid(pid, sig, 1);
 		any++;
 		for (sub = 0; sub < INFINIPATH_MAX_SUBPORT; sub++) {
 			pid = dd->ipath_pd[i]->port_subpid[sub];
 			if (!pid)
 				continue;
 			dev_info(&dd->pcidev->dev, "sub-context "
 				"%d:%d in use (PID %u), sending "
-				"signal %d\n", i, sub, pid, sig);
-			kill_proc(pid, sig, 1);
+				"signal %d\n", i, sub, pid_nr(pid), sig);
+			kill_pid(pid, sig, 1);
 			any++;
 		}
 	}

drivers/infiniband/hw/ipath/ipath_file_ops.c

@@ -555,7 +555,7 @@ static int ipath_tid_free(struct ipath_portdata *pd, unsigned subport,
 			p = dd->ipath_pageshadow[porttid + tid];
 			dd->ipath_pageshadow[porttid + tid] = NULL;
 			ipath_cdbg(VERBOSE, "PID %u freeing TID %u\n",
-				   pd->port_pid, tid);
+				   pid_nr(pd->port_pid), tid);
 			dd->ipath_f_put_tid(dd, &tidbase[tid],
 					    RCVHQ_RCV_TYPE_EXPECTED,
 					    dd->ipath_tidinvalid);
@@ -1609,7 +1609,7 @@ static int try_alloc_port(struct ipath_devdata *dd, int port,
 			   port);
 		pd->port_cnt = 1;
 		port_fp(fp) = pd;
-		pd->port_pid = current->pid;
+		pd->port_pid = get_pid(task_pid(current));
 		strncpy(pd->port_comm, current->comm, sizeof(pd->port_comm));
 		ipath_stats.sps_ports++;
 		ret = 0;
@@ -1793,14 +1793,15 @@ static int find_shared_port(struct file *fp,
 			}
 			port_fp(fp) = pd;
 			subport_fp(fp) = pd->port_cnt++;
-			pd->port_subpid[subport_fp(fp)] = current->pid;
+			pd->port_subpid[subport_fp(fp)] =
+				get_pid(task_pid(current));
 			tidcursor_fp(fp) = 0;
 			pd->active_slaves |= 1 << subport_fp(fp);
 			ipath_cdbg(PROC,
 				   "%s[%u] %u sharing %s[%u] unit:port %u:%u\n",
 				   current->comm, current->pid,
 				   subport_fp(fp),
-				   pd->port_comm, pd->port_pid,
+				   pd->port_comm, pid_nr(pd->port_pid),
 				   dd->ipath_unit, pd->port_port);
 			ret = 1;
 			goto done;
@@ -2066,15 +2067,16 @@ static int ipath_close(struct inode *in, struct file *fp)
 		 * the slave(s) don't wait for receive data forever.
 		 */
 		pd->active_slaves &= ~(1 << fd->subport);
-		pd->port_subpid[fd->subport] = 0;
+		put_pid(pd->port_subpid[fd->subport]);
+		pd->port_subpid[fd->subport] = NULL;
 		mutex_unlock(&ipath_mutex);
 		goto bail;
 	}
 	port = pd->port_port;
 
 	if (pd->port_hdrqfull) {
 		ipath_cdbg(PROC, "%s[%u] had %u rcvhdrqfull errors "
-			   "during run\n", pd->port_comm, pd->port_pid,
+			   "during run\n", pd->port_comm, pid_nr(pd->port_pid),
 			   pd->port_hdrqfull);
 		pd->port_hdrqfull = 0;
 	}
@@ -2134,11 +2136,12 @@ static int ipath_close(struct inode *in, struct file *fp)
 			unlock_expected_tids(pd);
 		ipath_stats.sps_ports--;
 		ipath_cdbg(PROC, "%s[%u] closed port %u:%u\n",
-			   pd->port_comm, pd->port_pid,
+			   pd->port_comm, pid_nr(pd->port_pid),
 			   dd->ipath_unit, port);
 	}
 
-	pd->port_pid = 0;
+	put_pid(pd->port_pid);
+	pd->port_pid = NULL;
 	dd->ipath_pd[pd->port_port] = NULL; /* before releasing mutex */
 	mutex_unlock(&ipath_mutex);
 	ipath_free_pddata(dd, pd); /* after releasing the mutex */

drivers/infiniband/hw/ipath/ipath_kernel.h

@@ -159,8 +159,8 @@ struct ipath_portdata {
 	/* saved total number of polled urgent packets for poll edge trigger */
 	u32 port_urgent_poll;
 	/* pid of process using this port */
-	pid_t port_pid;
-	pid_t port_subpid[INFINIPATH_MAX_SUBPORT];
+	struct pid *port_pid;
+	struct pid *port_subpid[INFINIPATH_MAX_SUBPORT];
 	/* same size as task_struct .comm[] */
 	char port_comm[16];
 	/* pkeys set by this use of this port */
@@ -483,7 +483,7 @@ struct ipath_devdata {
 
 	/* SendDMA related entries */
 	spinlock_t            ipath_sdma_lock;
-	u64                   ipath_sdma_status;
+	unsigned long         ipath_sdma_status;
 	unsigned long         ipath_sdma_abort_jiffies;
 	unsigned long         ipath_sdma_abort_intr_timeout;
 	unsigned long         ipath_sdma_buf_jiffies;
@@ -822,8 +822,8 @@ struct ipath_devdata {
 #define IPATH_SDMA_DISARMED  1
 #define IPATH_SDMA_DISABLED  2
 #define IPATH_SDMA_LAYERBUF  3
-#define IPATH_SDMA_RUNNING  62
-#define IPATH_SDMA_SHUTDOWN 63
+#define IPATH_SDMA_RUNNING  30
+#define IPATH_SDMA_SHUTDOWN 31
 
 /* bit combinations that correspond to abort states */
 #define IPATH_SDMA_ABORT_NONE 0