> -----Original Message-----
> From: Tetsuya Mukawa [mailto:mukawa at igel.co.jp]
> Sent: Thursday, March 12, 2015 10:18 AM
> To: dev at dpdk.org
> Cc: Iremonger, Bernard; Richardson, Bruce; Tetsuya Mukawa
> Subject: [PATCH v2 11/15] eal: Consolidate
> rte_eal_pci_probe/close_one_driver() of linuxapp and
> bsdapp
>
> This patch consolidates below functions, and implements these in common eal
> code.
> - rte_eal_pci_probe_one_driver()
> - rte_eal_pci_close_one_driver()
>
> Because pci_map_device() is only implemented in linuxapp, the patch
> implements it in bsdapp too.
> This implemented function will be merged to linuxapp one with later patch.
>
> Signed-off-by: Tetsuya Mukawa <mukawa at igel.co.jp>
> ---
> lib/librte_eal/bsdapp/eal/eal_pci.c | 79 ++---------------
> lib/librte_eal/common/eal_common_pci.c | 138 +++++++++++++++++++++++++++++
> lib/librte_eal/common/eal_private.h | 21 ++---
> lib/librte_eal/linuxapp/eal/eal_pci.c | 153
> ++-------------------------------
> 4 files changed, 162 insertions(+), 229 deletions(-)
>
> diff --git a/lib/librte_eal/bsdapp/eal/eal_pci.c
> b/lib/librte_eal/bsdapp/eal/eal_pci.c
> index 67ad88f..3778763 100644
> --- a/lib/librte_eal/bsdapp/eal/eal_pci.c
> +++ b/lib/librte_eal/bsdapp/eal/eal_pci.c
> @@ -88,7 +88,7 @@ static struct rte_tailq_elem rte_uio_tailq = {
> EAL_REGISTER_TAILQ(rte_uio_tailq)
>
> /* unbind kernel driver for this device */ -static int
> +int
> pci_unbind_kernel_driver(struct rte_pci_device *dev __rte_unused) {
> RTE_LOG(ERR, EAL, "RTE_PCI_DRV_FORCE_UNBIND flag is not implemented "
> @@ -429,6 +429,13 @@ skipdev:
> return 0;
> }
>
> +/* Map pci device */
> +int
> +pci_map_device(struct rte_pci_device *dev) {
> + return pci_uio_map_resource(dev);
> +}
> +
> /*
> * Scan the content of the PCI bus, and add the devices in the devices
> * list. Call pci_scan_one() for each pci entry found.
> @@ -479,76 +486,6 @@ error:
> return -1;
> }
>
> -/*
> - * If vendor/device ID match, call the devinit() function of the
> - * driver.
> - */
> -int
> -rte_eal_pci_probe_one_driver(struct rte_pci_driver *dr, struct
> rte_pci_device *dev) -{
> - struct rte_pci_id *id_table;
> - int ret;
> -
> - 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,
> - " probe 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;
> - }
> -
> - if (dr->drv_flags & RTE_PCI_DRV_NEED_MAPPING) {
> - /* map resources for devices that use igb_uio */
> - ret = pci_uio_map_resource(dev);
> - if (ret != 0)
> - return ret;
> - } else if (dr->drv_flags & RTE_PCI_DRV_FORCE_UNBIND &&
> - rte_eal_process_type() == RTE_PROC_PRIMARY) {
> - /* unbind current driver */
> - if (pci_unbind_kernel_driver(dev) < 0)
> - return -1;
> - }
> -
> - /* reference driver structure */
> - dev->driver = dr;
> -
> - /* call the driver devinit() function */
> - return dr->devinit(dr, dev);
> - }
> - /* return positive value if driver is not found */
> - return 1;
> -}
> -
> /* Init the PCI EAL subsystem */
> int
> rte_eal_pci_init(void)
> diff --git a/lib/librte_eal/common/eal_common_pci.c
> b/lib/librte_eal/common/eal_common_pci.c
> index 808b87b..538b2d9 100644
> --- a/lib/librte_eal/common/eal_common_pci.c
> +++ b/lib/librte_eal/common/eal_common_pci.c
> @@ -99,6 +99,144 @@ static struct rte_devargs *pci_devargs_lookup(struct
> rte_pci_device *dev) }
>
> /*
> + * If vendor/device ID match, call the devinit() function of the
> + * driver.
> + */
> +static int
> +rte_eal_pci_probe_one_driver(struct rte_pci_driver *dr,
> + struct rte_pci_device *dev)
> +{
> + int ret;
> + struct rte_pci_id *id_table;
> +
> + 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,
> + " probe 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 1;
> + }
> +
> + if (dr->drv_flags & RTE_PCI_DRV_NEED_MAPPING) { #ifdef
> RTE_PCI_CONFIG
> + /*
> + * Set PCIe config space for high performance.
> + * Return value can be ignored.
> + */
> + pci_config_space_set(dev);
> +#endif
> + /* map resources for devices that use igb_uio */
> + ret = pci_map_device(dev);
> + if (ret != 0)
> + return ret;
> + } else if (dr->drv_flags & RTE_PCI_DRV_FORCE_UNBIND &&
> + rte_eal_process_type() == RTE_PROC_PRIMARY) {
> + /* unbind current driver */
> + if (pci_unbind_kernel_driver(dev) < 0)
> + return -1;
> + }
> +
> + /* reference driver structure */
> + dev->driver = dr;
> +
> + /* call the driver devinit() function */
> + return dr->devinit(dr, dev);
> + }
> + /* return positive value if driver is not found */
> + return 1;
> +}
> +
> +#ifdef RTE_LIBRTE_EAL_HOTPLUG
Hi Tetsuya,
Can #ifdef RTE_LIBRTE_EAL_HOTPLUG be removed now as file is common ?
Regards,
Bernard.
> +/*
> + * If vendor/device ID match, call the devuninit() function of the
> + * driver.
> + */
> +static int
> +rte_eal_pci_close_one_driver(struct rte_pci_driver *dr,
> + struct rte_pci_device *dev)
> +{
> + struct rte_pci_id *id_table;
> +
> + 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);
> +
> + /* 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)
> + /* unmap resources for devices that use igb_uio */
> + pci_unmap_device(dev);
> +
> + return 0;
> + }
> + /* return positive value if driver is not found */
> + return 1;
> +}
> +#endif /* RTE_LIBRTE_EAL_HOTPLUG */
Hi Tetsuya,
Can the #endif be removed too?
Regards,
Bernard.
> +
> +/*
> * If vendor/device ID match, call the devinit() function of all
> * registered driver for the given device. Return -1 if initialization
> * failed, return 1 if no driver is found for this device.
> diff --git a/lib/librte_eal/common/eal_private.h
> b/lib/librte_eal/common/eal_private.h
> index 4acf5a0..fe2c596 100644
> --- a/lib/librte_eal/common/eal_private.h
> +++ b/lib/librte_eal/common/eal_private.h
> @@ -154,30 +154,31 @@ struct rte_pci_driver; struct rte_pci_device;
>
> /**
> - * Mmap memory for single PCI device
> + * Unbind kernel driver for this device
> *
> * This function is private to EAL.
> *
> * @return
> * 0 on success, negative on error
> */
> -int rte_eal_pci_probe_one_driver(struct rte_pci_driver *dr,
> - struct rte_pci_device *dev);
> +int pci_unbind_kernel_driver(struct rte_pci_device *dev);
>
> /**
> - * Munmap memory for single PCI device
> + * Map this device
> *
> * This function is private to EAL.
> *
> - * @param dr
> - * The pointer to the pci driver structure
> - * @param dev
> - * The pointer to the pci device structure
> * @return
> * 0 on success, negative on error
> */
> -int rte_eal_pci_close_one_driver(struct rte_pci_driver *dr,
> - struct rte_pci_device *dev);
> +int pci_map_device(struct rte_pci_device *dev);
> +
> +/**
> + * Unmap this device
> + *
> + * This function is private to EAL.
> + */
> +void pci_unmap_device(struct rte_pci_device *dev);
>
> /**
> * Init tail queues for non-EAL library structures. This is to allow diff
> --git
> a/lib/librte_eal/linuxapp/eal/eal_pci.c
> b/lib/librte_eal/linuxapp/eal/eal_pci.c
> index 353b0b8..dbc2548 100644
> --- a/lib/librte_eal/linuxapp/eal/eal_pci.c
> +++ b/lib/librte_eal/linuxapp/eal/eal_pci.c
> @@ -57,7 +57,7 @@
> */
>
> /* unbind kernel driver for this device */ -static int
> +int
> pci_unbind_kernel_driver(struct rte_pci_device *dev) {
> int n;
> @@ -565,7 +565,8 @@ pci_config_space_set(struct rte_pci_device *dev) }
> #endif
>
> -static int
> +/* Map pci device */
> +int
> pci_map_device(struct rte_pci_device *dev) {
> int ret = -1;
> @@ -594,7 +595,8 @@ pci_map_device(struct rte_pci_device *dev) }
>
> #ifdef RTE_LIBRTE_EAL_HOTPLUG
> -static void
> +/* Unmap pci device */
> +void
> pci_unmap_device(struct rte_pci_device *dev) {
> if (dev == NULL)
> @@ -618,151 +620,6 @@ pci_unmap_device(struct rte_pci_device *dev) } #endif
> /*
> RTE_LIBRTE_EAL_HOTPLUG */
>
> -/*
> - * If vendor/device ID match, call the devinit() function of the
> - * driver.
> - */
> -int
> -rte_eal_pci_probe_one_driver(struct rte_pci_driver *dr, struct
> rte_pci_device *dev) -{
> - int ret;
> - struct rte_pci_id *id_table;
> -
> - 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,
> - " probe 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 1;
> - }
> -
> - if (dr->drv_flags & RTE_PCI_DRV_NEED_MAPPING) {
> -#ifdef RTE_PCI_CONFIG
> - /*
> - * Set PCIe config space for high performance.
> - * Return value can be ignored.
> - */
> - pci_config_space_set(dev);
> -#endif
> - /* map resources for devices that use igb_uio */
> - ret = pci_map_device(dev);
> - if (ret != 0)
> - return ret;
> - } else if (dr->drv_flags & RTE_PCI_DRV_FORCE_UNBIND &&
> - rte_eal_process_type() == RTE_PROC_PRIMARY) {
> - /* unbind current driver */
> - if (pci_unbind_kernel_driver(dev) < 0)
> - return -1;
> - }
> -
> - /* reference driver structure */
> - dev->driver = dr;
> -
> - /* call the driver devinit() function */
> - return dr->devinit(dr, dev);
> - }
> - /* return positive value if driver is not found */
> - return 1;
> -}
> -
> -#ifdef RTE_LIBRTE_EAL_HOTPLUG
> -/*
> - * 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;
> -
> - 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);
> -
> - /* 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)
> - /* unmap resources for devices that use igb_uio */
> - pci_unmap_device(dev);
> -
> - return 0;
> - }
> - /* return positive value if driver is not found */
> - return 1;
> -}
> -#else /* RTE_LIBRTE_EAL_HOTPLUG */
> -int
> -rte_eal_pci_close_one_driver(struct rte_pci_driver *dr __rte_unused,
> - struct rte_pci_device *dev __rte_unused)
> -{
> - RTE_LOG(ERR, EAL, "Hotplug support isn't enabled\n");
> - return -1;
> -}
> -#endif /* RTE_LIBRTE_EAL_HOTPLUG */
> -
> /* Init the PCI EAL subsystem */
> int
> rte_eal_pci_init(void)
> --
> 1.9.1
