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* [dpdk-dev] [PATCH 1/3] BSD: Support Port Hotplug function
@ 2015-03-04  3:11 Tetsuya Mukawa
  2015-03-04  3:11 ` [dpdk-dev] [PATCH 2/3] eal, ethdev: Remove CONFIG_RTE_LIBRTE_EAL_HOTPLUG Tetsuya Mukawa
                   ` (3 more replies)
  0 siblings, 4 replies; 87+ messages in thread
From: Tetsuya Mukawa @ 2015-03-04  3:11 UTC (permalink / raw)
  To: dev

This patch adds Hotplug support to BSD.

Signed-off-by: Tetsuya Mukawa <mukawa@igel.co.jp>
---
 lib/librte_eal/bsdapp/eal/eal_pci.c           | 169 +++++++++++++++++++++++++-
 lib/librte_eal/bsdapp/eal/rte_eal_version.map |   6 +
 lib/librte_eal/common/include/rte_pci.h       |   1 +
 lib/librte_ether/rte_ethdev.c                 |   1 +
 4 files changed, 174 insertions(+), 3 deletions(-)

diff --git a/lib/librte_eal/bsdapp/eal/eal_pci.c b/lib/librte_eal/bsdapp/eal/eal_pci.c
index 9193f80..fc5a088 100644
--- a/lib/librte_eal/bsdapp/eal/eal_pci.c
+++ b/lib/librte_eal/bsdapp/eal/eal_pci.c
@@ -156,6 +156,26 @@ fail:
 	return NULL;
 }
 
+/* unmap a particular resource */
+static int
+pci_unmap_resource(void *requested_addr, size_t size)
+{
+	if (requested_addr == NULL)
+		return -EINVAL;
+
+	/* Unmap the PCI memory resource of device */
+	if (munmap(requested_addr, size)) {
+		RTE_LOG(ERR, EAL, "%s(): cannot munmap(%p, 0x%lx): %s\n",
+				__func__, requested_addr, (unsigned long)size,
+				strerror(errno));
+	} else {
+		RTE_LOG(DEBUG, EAL, "  PCI memory unmapped at %p\n",
+				requested_addr);
+		return -EFAULT;
+	}
+	return 0;
+}
+
 static int
 pci_uio_map_secondary(struct rte_pci_device *dev)
 {
@@ -270,6 +290,76 @@ pci_uio_map_resource(struct rte_pci_device *dev)
 	return (0);
 }
 
+static int
+pci_uio_unmap(struct uio_resource *uio_res)
+{
+	int ret;
+	unsigned i;
+
+	if (uio_res == NULL)
+		return -EINVAL;
+
+	for (i = 0; i != uio_res->nb_maps; i++) {
+		ret = pci_unmap_resource(uio_res->maps[i].addr,
+				(size_t)uio_res->maps[i].size);
+		if (ret < 0)
+			return ret;
+	}
+	return 0;
+}
+
+static struct uio_resource *
+pci_uio_find_resource(struct rte_pci_device *dev)
+{
+	struct uio_resource *uio_res;
+
+	if (dev == NULL)
+		return NULL;
+
+	TAILQ_FOREACH(uio_res, uio_res_list, next) {
+
+		/* skip this element if it doesn't match our PCI address */
+		if (!rte_eal_compare_pci_addr(&uio_res->pci_addr, &dev->addr))
+			return uio_res;
+	}
+	return NULL;
+}
+
+/* map the PCI resource of a PCI device in virtual memory */
+static int
+pci_uio_unmap_resource(struct rte_pci_device *dev)
+{
+	struct uio_resource *uio_res;
+
+	if (dev == NULL)
+		return -EINVAL;
+
+	/* find an entry for the device */
+	uio_res = pci_uio_find_resource(dev);
+	if (uio_res == NULL)
+		return -ENODEV;
+
+	/* secondary processes - just free maps */
+	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+		return pci_uio_unmap(uio_res);
+
+	TAILQ_REMOVE(uio_res_list, uio_res, next);
+
+	/* unmap all resources */
+	pci_uio_unmap(uio_res);
+
+	/* free_uio resource */
+	rte_free(uio_res);
+
+	/* close fd if in primary process */
+	close(dev->intr_handle.fd);
+
+	dev->intr_handle.fd = -1;
+	dev->intr_handle.type = RTE_INTR_HANDLE_UNKNOWN;
+
+	return 0;
+}
+
 /* Scan one pci sysfs entry, and fill the devices list from it. */
 static int
 pci_scan_one(int dev_pci_fd, struct pci_conf *conf)
@@ -307,6 +397,9 @@ pci_scan_one(int dev_pci_fd, struct pci_conf *conf)
 	/* FreeBSD has no NUMA support (yet) */
 	dev->numa_node = 0;
 
+	/* FreeBSD has only one pass through driver */
+	dev->pt_driver = RTE_PT_NIC_UIO;
+
 /* parse resources */
 	switch (conf->pc_hdr & PCIM_HDRTYPE) {
 	case PCIM_HDRTYPE_NORMAL:
@@ -376,8 +469,8 @@ skipdev:
  * Scan the content of the PCI bus, and add the devices in the devices
  * list. Call pci_scan_one() for each pci entry found.
  */
-static int
-pci_scan(void)
+int
+rte_eal_pci_scan(void)
 {
 	int fd = -1;
 	unsigned dev_count = 0;
@@ -487,6 +580,76 @@ rte_eal_pci_probe_one_driver(struct rte_pci_driver *dr, struct rte_pci_device *d
 	return 1;
 }
 
+/*
+ * If vendor/device ID match, call the devuninit() function of the
+ * driver.
+ */
+int
+rte_eal_pci_close_one_driver(struct rte_pci_driver *dr,
+		struct rte_pci_device *dev)
+{
+	struct rte_pci_id *id_table;
+	int ret;
+
+	if ((dr == NULL) || (dev == NULL))
+		return -EINVAL;
+
+	for (id_table = dr->id_table ; id_table->vendor_id != 0; id_table++) {
+
+		/* check if device's identifiers match the driver's ones */
+		if (id_table->vendor_id != dev->id.vendor_id &&
+		    id_table->vendor_id != PCI_ANY_ID)
+			continue;
+		if (id_table->device_id != dev->id.device_id &&
+		    id_table->device_id != PCI_ANY_ID)
+			continue;
+		if (id_table->subsystem_vendor_id !=
+		    dev->id.subsystem_vendor_id &&
+		    id_table->subsystem_vendor_id != PCI_ANY_ID)
+			continue;
+		if (id_table->subsystem_device_id !=
+		    dev->id.subsystem_device_id &&
+		    id_table->subsystem_device_id != PCI_ANY_ID)
+			continue;
+
+		struct rte_pci_addr *loc = &dev->addr;
+
+		RTE_LOG(DEBUG, EAL,
+			"PCI device "PCI_PRI_FMT" on NUMA socket %i\n",
+			loc->domain, loc->bus, loc->devid, loc->function,
+			dev->numa_node);
+
+		RTE_LOG(DEBUG, EAL,
+			"  remove driver: %x:%x %s\n", dev->id.vendor_id,
+			dev->id.device_id, dr->name);
+
+		/* no initialization when blacklisted, return without error */
+		if (dev->devargs != NULL &&
+			dev->devargs->type == RTE_DEVTYPE_BLACKLISTED_PCI) {
+
+			RTE_LOG(DEBUG, EAL,
+				"  Device is blacklisted, not initializing\n");
+			return 0;
+		}
+
+		/* call the driver devuninit() function */
+		if (dr->devuninit && (dr->devuninit(dev) < 0))
+			return -1;	/* negative value is an error */
+
+		/* clear driver structure */
+		dev->driver = NULL;
+
+		if (dr->drv_flags & RTE_PCI_DRV_NEED_MAPPING) {
+			/* map resources for devices that use igb_uio */
+			ret = pci_uio_unmap_resource(dev);
+			if (ret != 0)
+				return ret;
+		}
+	}
+	/* return positive value if driver is not found */
+	return 1;
+}
+
 /* Init the PCI EAL subsystem */
 int
 rte_eal_pci_init(void)
@@ -499,7 +662,7 @@ rte_eal_pci_init(void)
 	if (internal_config.no_pci)
 		return 0;
 
-	if (pci_scan() < 0) {
+	if (rte_eal_pci_scan() < 0) {
 		RTE_LOG(ERR, EAL, "%s(): Cannot scan PCI bus\n", __func__);
 		return -1;
 	}
diff --git a/lib/librte_eal/bsdapp/eal/rte_eal_version.map b/lib/librte_eal/bsdapp/eal/rte_eal_version.map
index d83524d..54f5ff1 100644
--- a/lib/librte_eal/bsdapp/eal/rte_eal_version.map
+++ b/lib/librte_eal/bsdapp/eal/rte_eal_version.map
@@ -37,9 +37,13 @@ DPDK_2.0 {
 	rte_eal_lcore_role;
 	rte_eal_mp_remote_launch;
 	rte_eal_mp_wait_lcore;
+	rte_eal_parse_devargs_str;
+	rte_eal_pci_close_one;
 	rte_eal_pci_dump;
 	rte_eal_pci_probe;
+	rte_eal_pci_probe_one;
 	rte_eal_pci_register;
+	rte_eal_pci_scan;
 	rte_eal_pci_unregister;
 	rte_eal_process_type;
 	rte_eal_remote_launch;
@@ -47,6 +51,8 @@ DPDK_2.0 {
 	rte_eal_tailq_lookup_by_idx;
 	rte_eal_tailq_reserve;
 	rte_eal_tailq_reserve_by_idx;
+	rte_eal_vdev_init;
+	rte_eal_vdev_uninit;
 	rte_eal_wait_lcore;
 	rte_exit;
 	rte_get_hpet_cycles;
diff --git a/lib/librte_eal/common/include/rte_pci.h b/lib/librte_eal/common/include/rte_pci.h
index b9cdf8b..dc74821 100644
--- a/lib/librte_eal/common/include/rte_pci.h
+++ b/lib/librte_eal/common/include/rte_pci.h
@@ -147,6 +147,7 @@ enum rte_pt_driver {
 	RTE_PT_IGB_UIO		= 1,
 	RTE_PT_VFIO		= 2,
 	RTE_PT_UIO_GENERIC	= 3,
+	RTE_PT_NIC_UIO		= 4, /* Driver for BSD */
 };
 
 /**
diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index 6ea7a17..9687fab 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -516,6 +516,7 @@ rte_eth_dev_is_detachable(uint8_t port_id)
 		switch (rte_eth_devices[port_id].pci_dev->pt_driver) {
 		case RTE_PT_IGB_UIO:
 		case RTE_PT_UIO_GENERIC:
+		case RTE_PT_NIC_UIO:
 			break;
 		case RTE_PT_VFIO:
 		default:
-- 
1.9.1

^ permalink raw reply	[flat|nested] 87+ messages in thread

end of thread, other threads:[~2015-04-23  9:48 UTC | newest]

Thread overview: 87+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2015-03-04  3:11 [dpdk-dev] [PATCH 1/3] BSD: Support Port Hotplug function Tetsuya Mukawa
2015-03-04  3:11 ` [dpdk-dev] [PATCH 2/3] eal, ethdev: Remove CONFIG_RTE_LIBRTE_EAL_HOTPLUG Tetsuya Mukawa
2015-03-04  3:11 ` [dpdk-dev] [PATCH 3/3] doc: Remove BSD limitation from hotplug section of programmer's guide Tetsuya Mukawa
2015-03-06 10:32 ` [dpdk-dev] [PATCH 1/3] BSD: Support Port Hotplug function Iremonger, Bernard
2015-03-09  2:23   ` Tetsuya Mukawa
2015-03-12 10:24     ` Tetsuya Mukawa
2015-03-12 10:17 ` [dpdk-dev] [PATCH v2 00/15] eal: Port Hotplug support for BSD Tetsuya Mukawa
2015-03-12 10:17   ` [dpdk-dev] [PATCH v2 01/15] eal: Fix cording style of eal_pci.c and eal_pci_uio.c Tetsuya Mukawa
2015-03-12 10:48     ` Bruce Richardson
2015-03-12 10:57       ` Qiu, Michael
2015-03-12 11:09         ` Bruce Richardson
2015-03-13  0:25           ` Tetsuya Mukawa
2015-03-12 10:17   ` [dpdk-dev] [PATCH v2 02/15] eal: Close file descriptor of uio configuration Tetsuya Mukawa
2015-03-13 13:54     ` Iremonger, Bernard
2015-03-12 10:17   ` [dpdk-dev] [PATCH v2 03/15] eal: Fix memory leak of pci_uio_map_resource() Tetsuya Mukawa
2015-03-13 14:04     ` Iremonger, Bernard
2015-03-17  9:30     ` [dpdk-dev] [PATCH 0/6] Clean up pci uio implementations Tetsuya Mukawa
2015-03-17  9:30       ` [dpdk-dev] [PATCH 1/6] eal: Fix cording style of eal_pci.c and eal_pci_uio.c Tetsuya Mukawa
2015-03-18 14:29         ` Bruce Richardson
2015-03-18 15:08         ` David Marchand
2015-03-17  9:30       ` [dpdk-dev] [PATCH 2/6] eal: Close file descriptor of uio configuration Tetsuya Mukawa
2015-03-18 15:19         ` David Marchand
2015-03-20  1:53           ` Tetsuya Mukawa
2015-03-19 16:04         ` Iremonger, Bernard
2015-03-20  1:54           ` Tetsuya Mukawa
2015-03-17  9:30       ` [dpdk-dev] [PATCH 3/6] eal: Fix memory leaks and needless incrementation of pci uio implementation Tetsuya Mukawa
2015-03-18 15:39         ` David Marchand
2015-03-20  1:53           ` Tetsuya Mukawa
2015-03-19 16:20         ` Iremonger, Bernard
2015-03-20  1:54           ` Tetsuya Mukawa
2015-03-17  9:30       ` [dpdk-dev] [PATCH 4/6] eal/bsdapp: Change names of pci related data structure Tetsuya Mukawa
2015-03-17  9:30       ` [dpdk-dev] [PATCH 5/6] eal: Use map_idx in pci_uio_map_resource() of bsdapp to work same as linuxapp Tetsuya Mukawa
2015-03-17  9:30       ` [dpdk-dev] [PATCH 6/6] eal: Fix interface of pci_map_resource() Tetsuya Mukawa
2015-03-20  9:53         ` Iremonger, Bernard
2015-03-24  4:18           ` Tetsuya Mukawa
2015-03-24  4:18         ` [dpdk-dev] [PATCH v2 0/6] Clean up pci uio implementations Tetsuya Mukawa
2015-03-24  4:18           ` [dpdk-dev] [PATCH v2 1/6] eal: Fix coding style of eal_pci.c and eal_pci_uio.c Tetsuya Mukawa
2015-03-24  4:18           ` [dpdk-dev] [PATCH v2 2/6] eal: Close file descriptor of uio configuration Tetsuya Mukawa
2015-03-24 18:33             ` Stephen Hemminger
2015-03-25  3:17               ` Tetsuya Mukawa
2015-03-25  5:07                 ` Stephen Hemminger
2015-03-26  4:19                   ` Tetsuya Mukawa
2015-03-26 10:03                     ` Iremonger, Bernard
2015-03-27  6:01                       ` Tetsuya Mukawa
2015-03-24  4:18           ` [dpdk-dev] [PATCH v2 3/6] eal: Fix memory leaks and needless increment of pci_map_addr Tetsuya Mukawa
2015-03-25 15:00             ` Iremonger, Bernard
2015-03-26  2:44               ` Tetsuya Mukawa
2015-03-24  4:18           ` [dpdk-dev] [PATCH v2 4/6] eal/bsdapp: Change names of pci related data structure Tetsuya Mukawa
2015-03-24  4:18           ` [dpdk-dev] [PATCH v2 5/6] eal: Use map_idx in pci_uio_map_resource() of bsdapp to work same as linuxapp Tetsuya Mukawa
2015-03-25 15:27             ` Iremonger, Bernard
2015-03-26  2:50               ` Tetsuya Mukawa
2015-03-26 10:41                 ` Iremonger, Bernard
2015-03-27  8:19                   ` Tetsuya Mukawa
2015-03-24  4:18           ` [dpdk-dev] [PATCH v2 6/6] eal: Fix interface of pci_map_resource() Tetsuya Mukawa
2015-03-25 15:03             ` Iremonger, Bernard
2015-03-27  8:39         ` [dpdk-dev] [PATCH v3 0/5] Clean up pci uio implementations Tetsuya Mukawa
2015-03-27  8:39           ` [dpdk-dev] [PATCH v3 1/5] eal: Fix coding style of eal_pci.c and eal_pci_uio.c Tetsuya Mukawa
2015-03-27  8:39           ` [dpdk-dev] [PATCH v3 2/5] eal: Close file descriptor of uio configuration Tetsuya Mukawa
2015-03-27  8:39           ` [dpdk-dev] [PATCH v3 3/5] eal: Fix memory leaks and needless increment of pci_map_addr Tetsuya Mukawa
2015-03-27  8:39           ` [dpdk-dev] [PATCH v3 4/5] eal/bsdapp: Change names of pci related data structure Tetsuya Mukawa
2015-03-27  8:39           ` [dpdk-dev] [PATCH v3 5/5] eal: Fix uio mapping differences between linuxapp and bsdapp Tetsuya Mukawa
2015-04-21 13:15           ` [dpdk-dev] [PATCH v3 0/5] Clean up pci uio implementations Iremonger, Bernard
2015-04-23  4:23             ` Tetsuya Mukawa
2015-04-23  8:12               ` Iremonger, Bernard
2015-04-23  9:48                 ` Tetsuya Mukawa
2015-03-12 10:17   ` [dpdk-dev] [PATCH v2 04/15] eal: Fix needless incrementation of pci_map_addr Tetsuya Mukawa
2015-03-13 14:49     ` Iremonger, Bernard
2015-03-12 10:17   ` [dpdk-dev] [PATCH v2 05/15] eal/bsdapp: Change names of pci related data structure Tetsuya Mukawa
2015-03-12 10:17   ` [dpdk-dev] [PATCH v2 06/15] eal: Use map_idx in pci_uio_map_resource() of bsdapp to work same as linuxapp Tetsuya Mukawa
2015-03-12 10:17   ` [dpdk-dev] [PATCH v2 07/15] eal: Fix interface of pci_map_resource() of bsdapp Tetsuya Mukawa
2015-03-12 11:04     ` Bruce Richardson
2015-03-12 10:17   ` [dpdk-dev] [PATCH v2 08/15] eal: Add pci_uio_alloc_uio_resource() Tetsuya Mukawa
2015-03-12 10:17   ` [dpdk-dev] [PATCH v2 09/15] eal: Add pci_uio_map_uio_resource_by_index() Tetsuya Mukawa
2015-03-12 10:17   ` [dpdk-dev] [PATCH v2 10/15] eal: Consolidate pci_map and mapped_pci_resource of linuxapp and bsdapp Tetsuya Mukawa
2015-03-12 10:17   ` [dpdk-dev] [PATCH v2 11/15] eal: Consolidate rte_eal_pci_probe/close_one_driver() " Tetsuya Mukawa
2015-03-13 15:03     ` Iremonger, Bernard
2015-03-12 10:17   ` [dpdk-dev] [PATCH v2 12/15] eal: Consolidate pci_map/unmap_device() " Tetsuya Mukawa
2015-03-13 15:10     ` Iremonger, Bernard
2015-03-12 10:17   ` [dpdk-dev] [PATCH v2 13/15] eal: Consolidate pci_map/unmap_resource() " Tetsuya Mukawa
2015-03-13 15:23     ` Iremonger, Bernard
2015-03-12 10:17   ` [dpdk-dev] [PATCH v2 14/15] eal: Consolidate pci uio functions " Tetsuya Mukawa
2015-03-12 10:17   ` [dpdk-dev] [PATCH v2 15/15] eal: Enable Port Hotplug as default in Linux and BSD Tetsuya Mukawa
2015-03-13 15:47     ` Iremonger, Bernard
2015-03-17  8:08       ` Tetsuya Mukawa
2015-03-19 11:41         ` Iremonger, Bernard
2015-03-13 11:46   ` [dpdk-dev] [PATCH v2 00/15] eal: Port Hotplug support for BSD Iremonger, Bernard
2015-03-16  3:36     ` Tetsuya Mukawa

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