From: Intel Date: Mon, 3 Jun 2013 00:00:00 +0000 (+0000) Subject: pci: don't unbind resources on exit X-Git-Tag: spdx-start~11238 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=a22f5ce8fccad93876997aee05564486de2823dc;p=dpdk.git pci: don't unbind resources on exit unbind operations must be done before starting eal application Signed-off-by: Intel --- diff --git a/app/test/test_pci.c b/app/test/test_pci.c index ce2b35cd60..30d3c9f771 100644 --- a/app/test/test_pci.c +++ b/app/test/test_pci.c @@ -95,7 +95,9 @@ struct rte_pci_driver my_driver = { .name = "test_driver", .devinit = my_driver_init, .id_table = my_driver_id, +#ifdef RTE_EAL_UNBIND_PORTS .drv_flags = RTE_PCI_DRV_NEED_IGB_UIO, +#endif }; struct rte_pci_driver my_driver2 = { @@ -182,5 +184,11 @@ test_pci(void) } test_pci_run = 1; + if (driver_registered == 1) { + rte_eal_pci_unregister(&my_driver); + rte_eal_pci_unregister(&my_driver2); + driver_registered = 0; + } + return 0; } diff --git a/lib/librte_eal/common/eal_common_pci.c b/lib/librte_eal/common/eal_common_pci.c index 10032c9af8..2f11588d43 100644 --- a/lib/librte_eal/common/eal_common_pci.c +++ b/lib/librte_eal/common/eal_common_pci.c @@ -141,10 +141,6 @@ rte_eal_pci_probe(void) TAILQ_FOREACH(dev, &device_list, next) pci_probe_all_drivers(dev); - #ifdef RTE_EAL_UNBIND_PORTS - if (atexit(rte_eal_pci_exit) != 0) - RTE_LOG(ERR, EAL, "atexit failure\n"); - #endif return 0; } @@ -186,6 +182,13 @@ rte_eal_pci_register(struct rte_pci_driver *driver) TAILQ_INSERT_TAIL(&driver_list, driver, next); } +/* unregister a driver */ +void +rte_eal_pci_unregister(struct rte_pci_driver *driver) +{ + TAILQ_REMOVE(&driver_list, driver, next); +} + void rte_eal_pci_set_blacklist(struct rte_pci_addr *blacklist, unsigned size) { diff --git a/lib/librte_eal/common/include/rte_pci.h b/lib/librte_eal/common/include/rte_pci.h index b5bffe506f..1a97367837 100644 --- a/lib/librte_eal/common/include/rte_pci.h +++ b/lib/librte_eal/common/include/rte_pci.h @@ -141,7 +141,6 @@ struct rte_pci_device { struct rte_pci_id id; /**< PCI ID. */ struct rte_pci_resource mem_resource[PCI_MAX_RESOURCE]; /**< PCI Memory Resource */ struct rte_intr_handle intr_handle; /**< Interrupt handle */ - char previous_dr[PATH_MAX]; /**< path for pre-dpdk driver*/ const struct rte_pci_driver *driver; /**< Associated driver */ unsigned int blacklisted:1; /**< Device is blacklisted */ }; @@ -183,16 +182,13 @@ struct rte_pci_driver { uint32_t drv_flags; /**< Flags contolling handling of device. */ }; -/**< Device needs igb_uio kernel module */ +#ifdef RTE_EAL_UNBIND_PORTS +/** Device needs igb_uio kernel module */ #define RTE_PCI_DRV_NEED_IGB_UIO 0x0001 -/**< Device driver must be registered several times until failure */ +#endif +/** Device driver must be registered several times until failure */ #define RTE_PCI_DRV_MULTIPLE 0x0002 -/** - * Perform clean up of pci drivers on application exits. - * */ -void rte_eal_pci_exit(void); - /** * Probe the PCI bus for registered drivers. * @@ -220,6 +216,15 @@ void rte_eal_pci_dump(void); */ void rte_eal_pci_register(struct rte_pci_driver *driver); +/** + * Unregister a PCI driver. + * + * @param driver + * A pointer to a rte_pci_driver structure describing the driver + * to be unregistered. + */ +void rte_eal_pci_unregister(struct rte_pci_driver *driver); + /** * Register a list of PCI locations that will be blacklisted (not used by DPDK). * diff --git a/lib/librte_eal/linuxapp/eal/eal_pci.c b/lib/librte_eal/linuxapp/eal/eal_pci.c index 20a4342b0d..03e3d52549 100644 --- a/lib/librte_eal/linuxapp/eal/eal_pci.c +++ b/lib/librte_eal/linuxapp/eal/eal_pci.c @@ -88,15 +88,6 @@ struct uio_map { uint64_t phaddr; }; -#define PROC_MODULES "/proc/modules" - -#define IGB_UIO_NAME "igb_uio" - -#define UIO_DRV_PATH "/sys/bus/pci/drivers/%s" - -/* maximum time to wait that /dev/uioX appears */ -#define UIO_DEV_WAIT_TIMEOUT 3 /* seconds */ - /* * For multi-process we need to reproduce all PCI mappings in secondary * processes, so save them in a tailq. @@ -115,6 +106,19 @@ TAILQ_HEAD(uio_res_list, uio_resource); static struct uio_res_list *uio_res_list = NULL; static int pci_parse_sysfs_value(const char *filename, uint64_t *val); +/* forward prototype of function called in pci_switch_module below */ +static int pci_uio_map_resource(struct rte_pci_device *dev); + +#ifdef RTE_EAL_UNBIND_PORTS +#define PROC_MODULES "/proc/modules" + +#define IGB_UIO_NAME "igb_uio" + +#define UIO_DRV_PATH "/sys/bus/pci/drivers/%s" + +/* maximum time to wait that /dev/uioX appears */ +#define UIO_DEV_WAIT_TIMEOUT 3 /* seconds */ + /* * Check that a kernel module is loaded. Returns 0 on success, or if the * parameter is NULL, or -1 if the module is not loaded. @@ -162,9 +166,6 @@ pci_bind_device(struct rte_pci_device *dev, char dr_path[]) char dev_bind[PATH_MAX]; struct rte_pci_addr *loc = &dev->addr; - RTE_LOG(DEBUG, EAL, "bind PCI device "PCI_PRI_FMT"\n", - loc->domain, loc->bus, loc->devid, loc->function); - n = rte_snprintf(dev_bind, sizeof(dev_bind), "%s/bind", dr_path); if ((n < 0) || (n >= (int)sizeof(buf))) { RTE_LOG(ERR, EAL, "Cannot rte_snprintf device bind path\n"); @@ -173,7 +174,7 @@ pci_bind_device(struct rte_pci_device *dev, char dr_path[]) f = fopen(dev_bind, "w"); if (f == NULL) { - RTE_LOG(ERR, EAL, "Cannot open %s\n", dev->previous_dr); + RTE_LOG(ERR, EAL, "Cannot open %s\n", dev_bind); return -1; } n = rte_snprintf(buf, sizeof(buf), PCI_PRI_FMT "\n", @@ -188,8 +189,6 @@ pci_bind_device(struct rte_pci_device *dev, char dr_path[]) return -1; } - RTE_LOG(DEBUG, EAL, "Device bound\n"); - fclose(f); return 0; } @@ -237,43 +236,130 @@ pci_uio_bind_device(struct rte_pci_device *dev, const char *module_name) return 0; } - -/* - * open devname: it can take some time to - * appear, so we wait some time before returning an error - */ -static int uio_open(const char *devname) +/* unbind kernel driver for this device */ +static int +pci_unbind_kernel_driver(struct rte_pci_device *dev) { - int n, fd; + int n; + FILE *f; + char filename[PATH_MAX]; + char buf[BUFSIZ]; + struct rte_pci_addr *loc = &dev->addr; - for (n=0; n < UIO_DEV_WAIT_TIMEOUT*10; n++) { - fd = open(devname, O_RDWR); - if (fd >= 0) - return fd; + /* open /sys/bus/pci/devices/AAAA:BB:CC.D/driver */ + rte_snprintf(filename, sizeof(filename), + SYSFS_PCI_DEVICES "/" PCI_PRI_FMT "/driver/unbind", + loc->domain, loc->bus, loc->devid, loc->function); - if (errno != ENOENT) - break; - usleep(100000); + f = fopen(filename, "w"); + if (f == NULL) /* device was not bound */ + return 0; + + n = rte_snprintf(buf, sizeof(buf), PCI_PRI_FMT "\n", + loc->domain, loc->bus, loc->devid, loc->function); + if ((n < 0) || (n >= (int)sizeof(buf))) { + RTE_LOG(ERR, EAL, "%s(): rte_snprintf failed\n", __func__); + goto error; + } + if (fwrite(buf, n, 1, f) == 0) { + RTE_LOG(ERR, EAL, "%s(): could not write to %s\n", __func__, + filename); + goto error; } + + fclose(f); + return 0; + +error: + fclose(f); return -1; } + +static int +pci_switch_module(struct rte_pci_driver *dr, struct rte_pci_device *dev, + int uio_status, const char *module_name) +{ + if (rte_eal_process_type() == RTE_PROC_PRIMARY) { + /* check that our driver is loaded */ + if (uio_status != 0 && + (uio_status = pci_uio_check_module(module_name)) != 0) + rte_exit(EXIT_FAILURE, "The %s module is required by the " + "%s driver\n", module_name, dr->name); + + /* unbind current driver, bind ours */ + if (pci_unbind_kernel_driver(dev) < 0) + return -1; + if (pci_uio_bind_device(dev, module_name) < 0) + return -1; + } + /* map the NIC resources */ + if (pci_uio_map_resource(dev) < 0) + return -1; + + return 0; +} + +#endif /* ifdef EAL_UNBIND_PORTS */ + /* map a particular resource from a file */ static void * -pci_mmap(int fd, void *addr, off_t offset, size_t size) +pci_map_resource(struct rte_pci_device *dev, void *requested_addr, + const char *devname, off_t offset, size_t size) { + int fd; void *mapaddr; +#ifdef RTE_EAL_UNBIND_PORTS + /* + * open devname, and mmap it: it can take some time to + * appear, so we wait some time before returning an error + */ + unsigned n; + fd = dev->intr_handle.fd; + for (n = 0; n < UIO_DEV_WAIT_TIMEOUT*10 && fd < 0; n++) { + errno = 0; + if ((fd = open(devname, O_RDWR)) < 0 && errno != ENOENT) + break; + usleep(100000); + } +#else + /* + * open devname, to mmap it + */ + fd = open(devname, O_RDWR); +#endif + if (fd < 0) { + RTE_LOG(ERR, EAL, "Cannot open %s: %s\n", + devname, strerror(errno)); + goto fail; + } + /* Map the PCI memory resource of device */ - mapaddr = mmap(addr, size, PROT_READ | PROT_WRITE, MAP_SHARED, - fd, offset); - if (mapaddr == MAP_FAILED || (addr != NULL && mapaddr != addr)) { - RTE_LOG(ERR, EAL, "%s(): cannot mmap %zd@0x%lx: %s\n", - __func__, size, offset, strerror(errno)); - return NULL; + mapaddr = mmap(requested_addr, size, PROT_READ | PROT_WRITE, + MAP_SHARED, fd, offset); + if (mapaddr == MAP_FAILED || + (requested_addr != NULL && mapaddr != requested_addr)) { + RTE_LOG(ERR, EAL, "%s(): cannot mmap(%s(%d), %p, 0x%lx, 0x%lx):" + " %s (%p)\n", __func__, devname, fd, requested_addr, + (unsigned long)size, (unsigned long)offset, + strerror(errno), mapaddr); + close(fd); + goto fail; } + if (rte_eal_process_type() == RTE_PROC_PRIMARY) { + /* save fd if in primary process */ + dev->intr_handle.fd = fd; + dev->intr_handle.type = RTE_INTR_HANDLE_UIO; + } else { + /* fd is not needed in slave process, close it */ + dev->intr_handle.fd = -1; + dev->intr_handle.type = RTE_INTR_HANDLE_UNKNOWN; + close(fd); + } + + RTE_LOG(DEBUG, EAL, " PCI memory mapped at %p\n", mapaddr); - RTE_LOG(DEBUG, EAL, "PCI memory mapped at %p\n", mapaddr); return mapaddr; fail: @@ -394,12 +480,11 @@ pci_uio_map_resource(struct rte_pci_device *dev) struct uio_resource *uio_res; struct uio_map *maps; - RTE_LOG(DEBUG, EAL, "map PCI resource for device "PCI_PRI_FMT"\n", - loc->domain, loc->bus, loc->devid, loc->function); + dev->intr_handle.fd = -1; /* secondary processes - use already recorded details */ if (rte_eal_process_type() != RTE_PROC_PRIMARY) - return pci_uio_map_restore(dev); + return (pci_uio_map_secondary(dev)); /* depending on kernel version, uio can be located in uio/uioX * or uio:uioX */ @@ -424,8 +509,10 @@ pci_uio_map_resource(struct rte_pci_device *dev) /* take the first file starting with "uio" */ while ((e = readdir(dir)) != NULL) { - int shortprefix_len = sizeof("uio") - 1; /* format could be uio%d ...*/ - int longprefix_len = sizeof("uio:uio") - 1; /* ... or uio:uio%d */ + /* format could be uio%d ...*/ + int shortprefix_len = sizeof("uio") - 1; + /* ... or uio:uio%d */ + int longprefix_len = sizeof("uio:uio") - 1; char *endptr; if (strncmp(e->d_name, "uio", 3) != 0) @@ -541,12 +628,14 @@ pci_parse_sysfs_resource(const char *filename, struct rte_pci_device *dev) for (i = 0; idomain << 24) + (addr->bus << 16) + (addr->devid << 8) + addr->function; - uint64_t dev_addr2 = (addr2->domain << 24) + (addr2->bus << 16) + (addr2->devid << 8) + addr2->function; + uint64_t dev_addr = (addr->domain << 24) + (addr->bus << 16) + (addr->devid << 8) + addr->function; + uint64_t dev_addr2 = (addr2->domain << 24) + (addr2->bus << 16) + (addr2->devid << 8) + addr2->function; - if (dev_addr > dev_addr2) - return 1; - else - return 0; + if (dev_addr > dev_addr2) + return 1; + else + return 0; } @@ -793,104 +883,6 @@ error: return -1; } -/* unbind kernel driver for this device */ -static int -pci_unbind_kernel_driver(struct rte_pci_device *dev) -{ - int n; - FILE *f; - char filename[PATH_MAX]; - char buf[BUFSIZ]; - struct rte_pci_addr *loc = &dev->addr; - - /* open /sys/bus/pci/devices/AAAA:BB:CC.D/driver */ - rte_snprintf(filename, sizeof(filename), - SYSFS_PCI_DEVICES "/" PCI_PRI_FMT "/driver/unbind", - loc->domain, loc->bus, loc->devid, loc->function); - - RTE_LOG(DEBUG, EAL, "unbind kernel driver %s\n", filename); - - f = fopen(filename, "w"); - if (f == NULL) /* device was not bound */ - return 0; - - n = rte_snprintf(buf, sizeof(buf), PCI_PRI_FMT "\n", - loc->domain, loc->bus, loc->devid, loc->function); - if ((n < 0) || (n >= (int)sizeof(buf))) { - RTE_LOG(ERR, EAL, "%s(): rte_snprintf failed\n", __func__); - goto error; - } - if (fwrite(buf, n, 1, f) == 0) { - RTE_LOG(ERR, EAL, "%s(): could not write to %s\n", __func__, - filename); - goto error; - } - - fclose(f); - return 0; - -error: - fclose(f); - return -1; -} - -static int -pci_exit_process(struct rte_pci_device *dev) -{ - if (munmap(dev->mem_resource.addr, dev->mem_resource.len) == -1){ - RTE_LOG(ERR, EAL, "Error with munmap\n"); - return -1; - } - if (close(dev->intr_handle.fd) == -1){ - RTE_LOG(ERR, EAL, "Error closing interrupt handle\n"); - return -1; - } - if (rte_eal_process_type() == RTE_PROC_PRIMARY) { - if (pci_unbind_kernel_driver(dev) < 0){ - RTE_LOG(ERR, EAL, "Error unbinding\n"); - return -1; - } - if (pci_bind_device(dev, dev->previous_dr) < 0){ - RTE_LOG(ERR, EAL, "Error binding\n"); - return -1; - } - } - - return 0; -} - -static void -pci_get_previous_driver_path(struct rte_pci_device *dev) -{ - int n; - char dev_path[PATH_MAX]; - char dr_path[PATH_MAX]; - struct rte_pci_addr *loc = &dev->addr; - - n = rte_snprintf(dev_path, sizeof(dev_path), SYSFS_PCI_DEVICES "/" - PCI_PRI_FMT "/driver", loc->domain, loc->bus, loc->devid, loc->function ); - if ((n < 0) || (n >= (int)sizeof(dev_path))) - RTE_LOG(ERR, EAL, "Cannot rte_snprintf device filepath\n"); - - n = readlink(dev_path, dr_path, sizeof(dr_path)); - if ((n < 0) || (n >= (int)sizeof(dr_path))){ - RTE_LOG(ERR, EAL, "Cannot readlink driver filepath\n"); - dev->previous_dr[0] = '\0'; - return; - } - dr_path[n] = '\0'; - - if (dr_path[0] != '/') - n = rte_snprintf(dev->previous_dr, sizeof(dev->previous_dr), - SYSFS_PCI_DEVICES "/" PCI_PRI_FMT "/%s", - loc->domain, loc->bus, loc->devid, loc->function, dr_path); - else - n = rte_snprintf(dev->previous_dr, sizeof(dev->previous_dr), - "%s", dr_path); - if ((n < 0) || (n >= (int)sizeof(dev_path))) - RTE_LOG(ERR, EAL, "Cannot rte_snprintf driver filepath\n"); -} - /* * If vendor/device ID match, call the devinit() function of the * driver. @@ -899,11 +891,13 @@ int rte_eal_pci_probe_one_driver(struct rte_pci_driver *dr, struct rte_pci_device *dev) { struct rte_pci_id *id_table; +#ifdef RTE_EAL_UNBIND_PORTS const char *module_name = NULL; int uio_status = -1; if (dr->drv_flags & RTE_PCI_DRV_NEED_IGB_UIO) module_name = IGB_UIO_NAME; +#endif for (id_table = dr->id_table ; id_table->vendor_id != 0; id_table++) { @@ -921,35 +915,19 @@ rte_eal_pci_probe_one_driver(struct rte_pci_driver *dr, struct rte_pci_device *d id_table->subsystem_device_id != PCI_ANY_ID) continue; - RTE_LOG(DEBUG, EAL, "probe driver: %x:%x %s\n", dev->id.vendor_id, + RTE_LOG(DEBUG, EAL, " probe driver: %x:%x %s\n", dev->id.vendor_id, dev->id.device_id, dr->name); - /* reference driver structure */ - dev->driver = dr; - /* no initialization when blacklisted, return without error */ - if (dev->blacklisted) + if (dev->blacklisted) { + RTE_LOG(DEBUG, EAL, " Device is blacklisted, not initializing\n"); return 0; + } +#ifdef RTE_EAL_UNBIND_PORTS /* Unbind PCI devices if needed */ - if (module_name != NULL) { - - if (rte_eal_process_type() == RTE_PROC_PRIMARY) { - /* check that our driver is loaded */ - if (uio_status != 0 && - (uio_status = pci_uio_check_module(module_name)) != 0) - rte_exit(EXIT_FAILURE, "The %s module is required by the " - "%s driver\n", module_name, dr->name); - - /* unbind current driver, bind ours */ - pci_get_previous_driver_path(dev); - if (pci_unbind_kernel_driver(dev) < 0) - return -1; - if (pci_uio_bind_device(dev, module_name) < 0) - return -1; - } - /* map the NIC resources */ - if (pci_uio_map_resource(dev) < 0) + if (module_name != NULL) + if (pci_switch_module(dr, dev, uio_status, module_name) < 0) return -1; #else /* just map the NIC resources */ @@ -975,20 +953,6 @@ rte_eal_pci_probe_one_driver(struct rte_pci_driver *dr, struct rte_pci_device *d return -1; } -/*Start the exit process for each dev in use*/ -void -rte_eal_pci_exit(void) -{ - struct rte_pci_device *dev = NULL; - - TAILQ_FOREACH(dev, &device_list, next){ - if (dev->previous_dr[0] == '\0') - continue; - if(pci_exit_process(dev) == 1) - RTE_LOG(ERR, EAL, "Exit process failure\n"); - } -} - /* Init the PCI EAL subsystem */ int rte_eal_pci_init(void) diff --git a/lib/librte_pmd_e1000/em_ethdev.c b/lib/librte_pmd_e1000/em_ethdev.c index 2cd6c01149..01cad14793 100644 --- a/lib/librte_pmd_e1000/em_ethdev.c +++ b/lib/librte_pmd_e1000/em_ethdev.c @@ -278,7 +278,9 @@ static struct eth_driver rte_em_pmd = { { .name = "rte_em_pmd", .id_table = pci_id_em_map, +#ifdef RTE_EAL_UNBIND_PORTS .drv_flags = RTE_PCI_DRV_NEED_IGB_UIO, +#endif }, .eth_dev_init = eth_em_dev_init, .dev_private_size = sizeof(struct e1000_adapter), diff --git a/lib/librte_pmd_e1000/igb_ethdev.c b/lib/librte_pmd_e1000/igb_ethdev.c index 10fb1f80bd..10549ecda2 100644 --- a/lib/librte_pmd_e1000/igb_ethdev.c +++ b/lib/librte_pmd_e1000/igb_ethdev.c @@ -484,7 +484,9 @@ static struct eth_driver rte_igb_pmd = { { .name = "rte_igb_pmd", .id_table = pci_id_igb_map, +#ifdef RTE_EAL_UNBIND_PORTS .drv_flags = RTE_PCI_DRV_NEED_IGB_UIO, +#endif }, .eth_dev_init = eth_igb_dev_init, .dev_private_size = sizeof(struct e1000_adapter), @@ -497,7 +499,9 @@ static struct eth_driver rte_igbvf_pmd = { { .name = "rte_igbvf_pmd", .id_table = pci_id_igbvf_map, +#ifdef RTE_EAL_UNBIND_PORTS .drv_flags = RTE_PCI_DRV_NEED_IGB_UIO, +#endif }, .eth_dev_init = eth_igbvf_dev_init, .dev_private_size = sizeof(struct e1000_adapter), diff --git a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c index 13d0005a04..8d2528f31e 100644 --- a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c +++ b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c @@ -769,7 +769,9 @@ static struct eth_driver rte_ixgbe_pmd = { { .name = "rte_ixgbe_pmd", .id_table = pci_id_ixgbe_map, +#ifdef RTE_EAL_UNBIND_PORTS .drv_flags = RTE_PCI_DRV_NEED_IGB_UIO, +#endif }, .eth_dev_init = eth_ixgbe_dev_init, .dev_private_size = sizeof(struct ixgbe_adapter), @@ -782,7 +784,9 @@ static struct eth_driver rte_ixgbevf_pmd = { { .name = "rte_ixgbevf_pmd", .id_table = pci_id_ixgbevf_map, +#ifdef RTE_EAL_UNBIND_PORTS .drv_flags = RTE_PCI_DRV_NEED_IGB_UIO, +#endif }, .eth_dev_init = eth_ixgbevf_dev_init, .dev_private_size = sizeof(struct ixgbe_adapter), diff --git a/tools/pci_unbind.py b/tools/pci_unbind.py index fbc3140cc3..1fbe12e96e 100755 --- a/tools/pci_unbind.py +++ b/tools/pci_unbind.py @@ -174,13 +174,20 @@ def check_modules(): sys.exit(1) depmod_output = check_output(["depmod", "-n", modpath]).splitlines() for line in depmod_output: - if not line.startswith(mod): + if not line.startswith("alias"): continue - if line.endswith(mod+".ko:"): + if not line.endswith(mod): continue lineparts = line.split() - module_dev_ids.append({"Vendor": int(lineparts[1],0), - "Device": int(lineparts[2],0)}) + if not(lineparts[1].startswith("pci:")): + continue; + else: + lineparts[1] = lineparts[1][4:] + vendor = lineparts[1][:9] + device = lineparts[1][9:18] + if vendor.startswith("v") and device.startswith("d"): + module_dev_ids.append({"Vendor": int(vendor[1:],16), + "Device": int(device[1:],16)}) def is_supported_device(dev_id): '''return true if device is supported by igb_uio, false otherwise''' diff --git a/tools/setup.sh b/tools/setup.sh index 9326d84f04..a2c3806206 100755 --- a/tools/setup.sh +++ b/tools/setup.sh @@ -325,11 +325,49 @@ grep_meminfo() } # -# List all hugepage file references +# Calls pci_unbind.py --status to show the NIC and what they +# are all bound to, in terms of drivers. # -ls_mnt_huge() +show_nics() { - ls -lh /mnt/huge + if /sbin/lsmod | grep -q igb_uio ; then + ${RTE_SDK}/tools/pci_unbind.py --status + else + echo "# Please load the 'igb_uio' kernel module before querying or " + echo "# adjusting NIC device bindings" + fi +} + +# +# Uses pci_unbind.py to move devices to work with igb_uio +# +bind_nics() +{ + if /sbin/lsmod | grep -q igb_uio ; then + ${RTE_SDK}/tools/pci_unbind.py --status + echo "" + echo -n "Enter PCI address of device to bind to IGB UIO driver: " + read PCI_PATH + sudo ${RTE_SDK}/tools/pci_unbind.py -b igb_uio $PCI_PATH && echo "OK" + else + echo "# Please load the 'igb_uio' kernel module before querying or " + echo "# adjusting NIC device bindings" + fi +} + +# +# Uses pci_unbind.py to move devices to work with kernel drivers again +# +unbind_nics() +{ + ${RTE_SDK}/tools/pci_unbind.py --status + echo "" + echo -n "Enter PCI address of device to bind to IGB UIO driver: " + read PCI_PATH + echo "" + echo -n "Enter name of kernel driver to bind the device to: " + read DRV + sudo ${RTE_SDK}/tools/pci_unbind.py -b $DRV $PCI_PATH && echo "OK" } # @@ -368,6 +406,12 @@ step2_func() TEXT[4]="Setup hugepage mappings for NUMA systems" FUNC[4]="set_numa_pages" + + TEXT[5]="Display current Ethernet device settings" + FUNC[5]="show_nics" + + TEXT[6]="Bind Ethernet device to IGB UIO module" + FUNC[6]="bind_nics" } # @@ -394,8 +438,6 @@ step4_func() TEXT[1]="List hugepage info from /proc/meminfo" FUNC[1]="grep_meminfo" - TEXT[2]="List hugepage files in /mnt/huge" - FUNC[2]="ls_mnt_huge" } # @@ -408,14 +450,17 @@ step5_func() TEXT[1]="Uninstall all targets" FUNC[1]="uninstall_targets" - TEXT[2]="Remove IGB UIO module" - FUNC[2]="remove_igb_uio_module" + TEXT[2]="Unbind NICs from IGB UIO driver" + FUNC[2]="unbind_nics" + + TEXT[3]="Remove IGB UIO module" + FUNC[3]="remove_igb_uio_module" - TEXT[3]="Remove KNI module" - FUNC[3]="remove_kni_module" + TEXT[4]="Remove KNI module" + FUNC[4]="remove_kni_module" - TEXT[4]="Remove hugepage mappings" - FUNC[4]="clear_huge_pages" + TEXT[5]="Remove hugepage mappings" + FUNC[5]="clear_huge_pages" } STEPS[1]="step1_func"