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

…it/roland/infiniband * 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband: IB/mthca: Always fill MTTs from CPU IB/mthca: Merge MR and FMR space on 64-bit systems IB/mthca: Fix access to MTT and MPT tables on non-cache-coherent CPUs IB/mthca: Give reserved MTTs a separate cache line IB/mthca: Fix reserved MTTs calculation on mem-free HCAs RDMA/cxgb3: Add driver for Chelsio T3 RNIC IB: Remove redundant "_wq" from workqueue names RDMA/cma: Increment port number after close to avoid re-use IB/ehca: Fix memleak on module unloading IB/mthca: Work around gcc bug on sparc64 IPoIB: Connected mode experimental support IB/core: Use ARRAY_SIZE macro for mandatory_table IB/mthca: Use correct structure size in call to memset()
ambv · Feb 14, 2007 · 93bbad8 · 93bbad8
2 parents 9468482 + b2875d4
commit 93bbad8
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Showing 46 changed files with 11,279 additions and 114 deletions.
diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig
@@ -38,6 +38,7 @@ source "drivers/infiniband/hw/mthca/Kconfig"
 source "drivers/infiniband/hw/ipath/Kconfig"
 source "drivers/infiniband/hw/ehca/Kconfig"
 source "drivers/infiniband/hw/amso1100/Kconfig"
+source "drivers/infiniband/hw/cxgb3/Kconfig"
 
 source "drivers/infiniband/ulp/ipoib/Kconfig"
 

diff --git a/drivers/infiniband/Makefile b/drivers/infiniband/Makefile
@@ -3,6 +3,7 @@ obj-$(CONFIG_INFINIBAND_MTHCA)		+= hw/mthca/
 obj-$(CONFIG_INFINIBAND_IPATH)		+= hw/ipath/
 obj-$(CONFIG_INFINIBAND_EHCA)		+= hw/ehca/
 obj-$(CONFIG_INFINIBAND_AMSO1100)	+= hw/amso1100/
+obj-$(CONFIG_INFINIBAND_CXGB3)		+= hw/cxgb3/
 obj-$(CONFIG_INFINIBAND_IPOIB)		+= ulp/ipoib/
 obj-$(CONFIG_INFINIBAND_SRP)		+= ulp/srp/
 obj-$(CONFIG_INFINIBAND_ISER)		+= ulp/iser/
diff --git a/drivers/infiniband/core/addr.c b/drivers/infiniband/core/addr.c
@@ -373,7 +373,7 @@ static struct notifier_block nb = {
 
 static int addr_init(void)
 {
-	addr_wq = create_singlethread_workqueue("ib_addr_wq");
+	addr_wq = create_singlethread_workqueue("ib_addr");
 	if (!addr_wq)
 		return -ENOMEM;
 

diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
@@ -71,6 +71,7 @@ static struct workqueue_struct *cma_wq;
 static DEFINE_IDR(sdp_ps);
 static DEFINE_IDR(tcp_ps);
 static DEFINE_IDR(udp_ps);
+static int next_port;
 
 struct cma_device {
 	struct list_head	list;
@@ -1722,33 +1723,74 @@ static int cma_alloc_port(struct idr *ps, struct rdma_id_private *id_priv,
 			  unsigned short snum)
 {
 	struct rdma_bind_list *bind_list;
-	int port, start, ret;
+	int port, ret;
 
 	bind_list = kzalloc(sizeof *bind_list, GFP_KERNEL);
 	if (!bind_list)
 		return -ENOMEM;
 
-	start = snum ? snum : sysctl_local_port_range[0];
+	do {
+		ret = idr_get_new_above(ps, bind_list, snum, &port);
+	} while ((ret == -EAGAIN) && idr_pre_get(ps, GFP_KERNEL));
+
+	if (ret)
+		goto err1;
+
+	if (port != snum) {
+		ret = -EADDRNOTAVAIL;
+		goto err2;
+	}
+
+	bind_list->ps = ps;
+	bind_list->port = (unsigned short) port;
+	cma_bind_port(bind_list, id_priv);
+	return 0;
+err2:
+	idr_remove(ps, port);
+err1:
+	kfree(bind_list);
+	return ret;
+}
 
+static int cma_alloc_any_port(struct idr *ps, struct rdma_id_private *id_priv)
+{
+	struct rdma_bind_list *bind_list;
+	int port, ret;
+
+	bind_list = kzalloc(sizeof *bind_list, GFP_KERNEL);
+	if (!bind_list)
+		return -ENOMEM;
+
+retry:
 	do {
-		ret = idr_get_new_above(ps, bind_list, start, &port);
+		ret = idr_get_new_above(ps, bind_list, next_port, &port);
 	} while ((ret == -EAGAIN) && idr_pre_get(ps, GFP_KERNEL));
 
 	if (ret)
-		goto err;
+		goto err1;
 
-	if ((snum && port != snum) ||
-	    (!snum && port > sysctl_local_port_range[1])) {
-		idr_remove(ps, port);
+	if (port > sysctl_local_port_range[1]) {
+		if (next_port != sysctl_local_port_range[0]) {
+			idr_remove(ps, port);
+			next_port = sysctl_local_port_range[0];
+			goto retry;
+		}
 		ret = -EADDRNOTAVAIL;
-		goto err;
+		goto err2;
 	}
 
+	if (port == sysctl_local_port_range[1])
+		next_port = sysctl_local_port_range[0];
+	else
+		next_port = port + 1;
+
 	bind_list->ps = ps;
 	bind_list->port = (unsigned short) port;
 	cma_bind_port(bind_list, id_priv);
 	return 0;
-err:
+err2:
+	idr_remove(ps, port);
+err1:
 	kfree(bind_list);
 	return ret;
 }
@@ -1811,7 +1853,7 @@ static int cma_get_port(struct rdma_id_private *id_priv)
 
 	mutex_lock(&lock);
 	if (cma_any_port(&id_priv->id.route.addr.src_addr))
-		ret = cma_alloc_port(ps, id_priv, 0);
+		ret = cma_alloc_any_port(ps, id_priv);
 	else
 		ret = cma_use_port(ps, id_priv);
 	mutex_unlock(&lock);
@@ -2448,7 +2490,11 @@ static int cma_init(void)
 {
 	int ret;
 
-	cma_wq = create_singlethread_workqueue("rdma_cm_wq");
+	get_random_bytes(&next_port, sizeof next_port);
+	next_port = (next_port % (sysctl_local_port_range[1] -
+				  sysctl_local_port_range[0])) +
+		    sysctl_local_port_range[0];
+	cma_wq = create_singlethread_workqueue("rdma_cm");
 	if (!cma_wq)
 		return -ENOMEM;
 

diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
@@ -36,6 +36,7 @@
 #include <linux/module.h>
 #include <linux/string.h>
 #include <linux/errno.h>
+#include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/mutex.h>
@@ -93,7 +94,7 @@ static int ib_device_check_mandatory(struct ib_device *device)
 	};
 	int i;
 
-	for (i = 0; i < sizeof mandatory_table / sizeof mandatory_table[0]; ++i) {
+	for (i = 0; i < ARRAY_SIZE(mandatory_table); ++i) {
 		if (!*(void **) ((void *) device + mandatory_table[i].offset)) {
 			printk(KERN_WARNING "Device %s is missing mandatory function %s\n",
 			       device->name, mandatory_table[i].name);

diff --git a/drivers/infiniband/hw/cxgb3/Kconfig b/drivers/infiniband/hw/cxgb3/Kconfig
@@ -0,0 +1,27 @@
+config INFINIBAND_CXGB3
+	tristate "Chelsio RDMA Driver"
+	depends on CHELSIO_T3 && INFINIBAND && INET
+	select GENERIC_ALLOCATOR
+	---help---
+	  This is an iWARP/RDMA driver for the Chelsio T3 1GbE and
+	  10GbE adapters.
+
+	  For general information about Chelsio and our products, visit
+	  our website at <http://www.chelsio.com>.
+
+	  For customer support, please visit our customer support page at
+	  <http://www.chelsio.com/support.htm>.
+
+	  Please send feedback to <[email protected]>.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called iw_cxgb3.
+
+config INFINIBAND_CXGB3_DEBUG
+	bool "Verbose debugging output"
+	depends on INFINIBAND_CXGB3
+	default n
+	---help---
+	  This option causes the Chelsio RDMA driver to produce copious
+	  amounts of debug messages.  Select this if you are developing
+	  the driver or trying to diagnose a problem.
diff --git a/drivers/infiniband/hw/cxgb3/Makefile b/drivers/infiniband/hw/cxgb3/Makefile
@@ -0,0 +1,12 @@
+EXTRA_CFLAGS += -I$(TOPDIR)/drivers/net/cxgb3 \
+		-I$(TOPDIR)/drivers/infiniband/hw/cxgb3/core
+
+obj-$(CONFIG_INFINIBAND_CXGB3) += iw_cxgb3.o
+
+iw_cxgb3-y :=  iwch_cm.o iwch_ev.o iwch_cq.o iwch_qp.o iwch_mem.o \
+	       iwch_provider.o iwch.o cxio_hal.o cxio_resource.o
+
+ifdef CONFIG_INFINIBAND_CXGB3_DEBUG
+EXTRA_CFLAGS += -DDEBUG
+iw_cxgb3-y += cxio_dbg.o
+endif