From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr0-f170.google.com (mail-wr0-f170.google.com [209.85.128.170]) by dpdk.org (Postfix) with ESMTP id 9C5877CCC for ; Mon, 5 Jun 2017 14:56:03 +0200 (CEST) Received: by mail-wr0-f170.google.com with SMTP id q97so37748011wrb.2 for ; Mon, 05 Jun 2017 05:56:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=6wind-com.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:content-transfer-encoding:in-reply-to :user-agent; bh=tLHuJHVJpqB4Q/TtePsv+BktTCNRYaLpO5+zdsP8F8A=; b=gX653BqkVcCGoU7KEYGXgvWTgrGKiQhDHNjTGCpm+xIsVguKhRZVti0bOhh1d0A+BQ VTFn/2toz/yeMyE0YEwdrvyB+9751jKFNRyvI1TBBkVietWZpI31O6dASApG00eWY+VR jviilbkmTWdvHb67a1Jfg9eyuRGinZMymdxWv3cTkahG3AXCU3Pu4kxicaql74CfHgVv QPNwIlM4JqS+UoKKCssLleBpKHxfAEAtnhmkUdLIgPz2i/PdnigyABQSRomtCTK9lC5U tCByrcSwxVVw39+/LARl0y9aCDKxRFVTDs/qG0APl06pXKyAIJDQDvyEJxRpzbGgfuSz EtSA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:content-transfer-encoding :in-reply-to:user-agent; bh=tLHuJHVJpqB4Q/TtePsv+BktTCNRYaLpO5+zdsP8F8A=; b=rTlYLFKkzREzjESAIiC7gWzERr56MDQ2nfP1ykadzIMOcp2OvyduePqbdY0chxPv0h wyX+RT/JskF7NFUzvKPSqLtT7ODsfPwK1/sJKszMEClrluoT4Sj8tMncdcMZ9SioPfTT BY5cqW5yZzFKYGxdOuoritYTDVtHEsmmwmv6xaqqHOg6fA+nfWixh7ndoI+FtA26NBfr pIh/dNsPRaBICBHeVYG9aqNZflII7dKldfY4Jrjk1/0u60wc0mN4NwkNaaFrk3Gptrnc DstDK0GmJpo8+ldFQX5SwuPjG7I6GTDh7YGz/GIhK3ZflmRgF9/1sAQVBcAceuFaniZf tJgw== X-Gm-Message-State: AODbwcCwZtWasj/jgXiy6+kHOVVxIVLMwng23sgw2o7MclcXLt+ljK8O 17GhXXA+TVfg8LAW X-Received: by 10.223.175.98 with SMTP id z89mr2894226wrc.22.1496667363082; Mon, 05 Jun 2017 05:56:03 -0700 (PDT) Received: from bidouze.vm.6wind.com (host.78.145.23.62.rev.coltfrance.com. [62.23.145.78]) by smtp.gmail.com with ESMTPSA id t195sm8519275wmt.27.2017.06.05.05.56.01 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 05 Jun 2017 05:56:01 -0700 (PDT) Date: Mon, 5 Jun 2017 14:55:55 +0200 From: =?iso-8859-1?Q?Ga=EBtan?= Rivet To: Jerin Jacob Cc: dev@dpdk.org, bruce.richardson@intel.com, harry.van.haaren@intel.com, hemant.agrawal@nxp.com, gage.eads@intel.com, nipun.gupta@nxp.com Message-ID: <20170605125555.GJ18840@bidouze.vm.6wind.com> References: <20170601164146.13501-1-jerin.jacob@caviumnetworks.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20170601164146.13501-1-jerin.jacob@caviumnetworks.com> User-Agent: Mutt/1.5.23 (2014-03-12) Subject: Re: [dpdk-dev] [PATCH] eventdev: remove PCI dependency X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 05 Jun 2017 12:56:03 -0000 Hi Jerin, On Thu, Jun 01, 2017 at 10:11:46PM +0530, Jerin Jacob wrote: > Remove the PCI dependency from generic data structures > and moved the PCI specific code to rte_event_pmd_pci* > Thanks for working on this. Do you plan on removing rte_pci.h in rte_eventdev_pmd.h? Do you think it would be feasible? > CC: Gaetan Rivet > Signed-off-by: Jerin Jacob > --- > drivers/event/skeleton/skeleton_eventdev.c | 30 +++++++++----- > lib/librte_eventdev/rte_eventdev.c | 37 +++++++----------- > lib/librte_eventdev/rte_eventdev.h | 2 - > lib/librte_eventdev/rte_eventdev_pmd.h | 63 ++++-------------------------- > 4 files changed, 41 insertions(+), 91 deletions(-) > > diff --git a/drivers/event/skeleton/skeleton_eventdev.c b/drivers/event/skeleton/skeleton_eventdev.c > index 800bd76e0..34684aba0 100644 > --- a/drivers/event/skeleton/skeleton_eventdev.c > +++ b/drivers/event/skeleton/skeleton_eventdev.c > @@ -427,18 +427,28 @@ static const struct rte_pci_id pci_id_skeleton_map[] = { > }, > }; > > -static struct rte_eventdev_driver pci_eventdev_skeleton_pmd = { > - .pci_drv = { > - .id_table = pci_id_skeleton_map, > - .drv_flags = RTE_PCI_DRV_NEED_MAPPING, > - .probe = rte_event_pmd_pci_probe, > - .remove = rte_event_pmd_pci_remove, > - }, > - .eventdev_init = skeleton_eventdev_init, > - .dev_private_size = sizeof(struct skeleton_eventdev), > +static int > +event_skeleton_pci_probe(struct rte_pci_driver *pci_drv, > + struct rte_pci_device *pci_dev) > +{ > + return rte_event_pmd_pci_probe(pci_drv, pci_dev, > + sizeof(struct skeleton_eventdev), skeleton_eventdev_init); > +} > + > +static int > +event_skeleton_pci_remove(struct rte_pci_device *pci_dev) > +{ > + return rte_event_pmd_pci_remove(pci_dev, NULL); > +} > + > +static struct rte_pci_driver pci_eventdev_skeleton_pmd = { > + .id_table = pci_id_skeleton_map, > + .drv_flags = RTE_PCI_DRV_NEED_MAPPING, > + .probe = event_skeleton_pci_probe, > + .remove = event_skeleton_pci_remove, > }; > > -RTE_PMD_REGISTER_PCI(event_skeleton_pci, pci_eventdev_skeleton_pmd.pci_drv); > +RTE_PMD_REGISTER_PCI(event_skeleton_pci, pci_eventdev_skeleton_pmd); > RTE_PMD_REGISTER_PCI_TABLE(event_skeleton_pci, pci_id_skeleton_map); > > /* VDEV based event device */ > diff --git a/lib/librte_eventdev/rte_eventdev.c b/lib/librte_eventdev/rte_eventdev.c > index 20afc3f0e..91f950666 100644 > --- a/lib/librte_eventdev/rte_eventdev.c > +++ b/lib/librte_eventdev/rte_eventdev.c > @@ -126,8 +126,6 @@ rte_event_dev_info_get(uint8_t dev_id, struct rte_event_dev_info *dev_info) > dev_info->dequeue_timeout_ns = dev->data->dev_conf.dequeue_timeout_ns; > > dev_info->dev = dev->dev; > - if (dev->driver) > - dev_info->driver_name = dev->driver->pci_drv.driver.name; > return 0; > } > > @@ -1250,18 +1248,18 @@ rte_event_pmd_vdev_uninit(const char *name) > > int > rte_event_pmd_pci_probe(struct rte_pci_driver *pci_drv, > - struct rte_pci_device *pci_dev) > + struct rte_pci_device *pci_dev, > + size_t private_data_size, > + eventdev_pmd_pci_callback_t devinit) > { > - struct rte_eventdev_driver *eventdrv; > struct rte_eventdev *eventdev; > > char eventdev_name[RTE_EVENTDEV_NAME_MAX_LEN]; > > int retval; > > - eventdrv = (struct rte_eventdev_driver *)pci_drv; > - if (eventdrv == NULL) > - return -ENODEV; > + if (devinit == NULL) > + return -EINVAL; > > rte_pci_device_name(&pci_dev->addr, eventdev_name, > sizeof(eventdev_name)); > @@ -1275,7 +1273,7 @@ rte_event_pmd_pci_probe(struct rte_pci_driver *pci_drv, > eventdev->data->dev_private = > rte_zmalloc_socket( > "eventdev private structure", > - eventdrv->dev_private_size, > + private_data_size, > RTE_CACHE_LINE_SIZE, > rte_socket_id()); > > @@ -1285,10 +1283,9 @@ rte_event_pmd_pci_probe(struct rte_pci_driver *pci_drv, > } > > eventdev->dev = &pci_dev->device; > - eventdev->driver = eventdrv; > > /* Invoke PMD device initialization function */ > - retval = (*eventdrv->eventdev_init)(eventdev); > + retval = devinit(eventdev); > if (retval == 0) > return 0; > > @@ -1307,12 +1304,12 @@ rte_event_pmd_pci_probe(struct rte_pci_driver *pci_drv, > } > > int > -rte_event_pmd_pci_remove(struct rte_pci_device *pci_dev) > +rte_event_pmd_pci_remove(struct rte_pci_device *pci_dev, > + eventdev_pmd_pci_callback_t devuninit) > { > - const struct rte_eventdev_driver *eventdrv; > struct rte_eventdev *eventdev; > char eventdev_name[RTE_EVENTDEV_NAME_MAX_LEN]; > - int ret; > + int ret = 0; > > if (pci_dev == NULL) > return -EINVAL; > @@ -1324,22 +1321,16 @@ rte_event_pmd_pci_remove(struct rte_pci_device *pci_dev) > if (eventdev == NULL) > return -ENODEV; > > - eventdrv = (const struct rte_eventdev_driver *)pci_dev->driver; > - if (eventdrv == NULL) > - return -ENODEV; > - > /* Invoke PMD device un-init function */ > - if (*eventdrv->eventdev_uninit) { > - ret = (*eventdrv->eventdev_uninit)(eventdev); > - if (ret) > - return ret; > - } > + if (devuninit) > + ret = devuninit(eventdev); > + if (ret) > + return ret; > > /* Free event device */ > rte_event_pmd_release(eventdev); > > eventdev->dev = NULL; > - eventdev->driver = NULL; > > return 0; > } > diff --git a/lib/librte_eventdev/rte_eventdev.h b/lib/librte_eventdev/rte_eventdev.h > index 20e7293e0..c5b2b7453 100644 > --- a/lib/librte_eventdev/rte_eventdev.h > +++ b/lib/librte_eventdev/rte_eventdev.h > @@ -1063,8 +1063,6 @@ struct rte_eventdev { > /**< Functions exported by PMD */ > struct rte_device *dev; > /**< Device info. supplied by probing */ > - const struct rte_eventdev_driver *driver; > - /**< Driver for this device */ > > RTE_STD_C11 > uint8_t attached : 1; > diff --git a/lib/librte_eventdev/rte_eventdev_pmd.h b/lib/librte_eventdev/rte_eventdev_pmd.h > index 4005b3c98..faa6989b4 100644 > --- a/lib/librte_eventdev/rte_eventdev_pmd.h > +++ b/lib/librte_eventdev/rte_eventdev_pmd.h > @@ -87,60 +87,6 @@ extern "C" { > #define RTE_EVENTDEV_DETACHED (0) > #define RTE_EVENTDEV_ATTACHED (1) > > -/** > - * Initialisation function of a event driver invoked for each matching > - * event PCI device detected during the PCI probing phase. > - * > - * @param dev > - * The dev pointer is the address of the *rte_eventdev* structure associated > - * with the matching device and which has been [automatically] allocated in > - * the *rte_event_devices* array. > - * > - * @return > - * - 0: Success, the device is properly initialised by the driver. > - * In particular, the driver MUST have set up the *dev_ops* pointer > - * of the *dev* structure. > - * - <0: Error code of the device initialisation failure. > - */ > -typedef int (*eventdev_init_t)(struct rte_eventdev *dev); > - > -/** > - * Finalisation function of a driver invoked for each matching > - * PCI device detected during the PCI closing phase. > - * > - * @param dev > - * The dev pointer is the address of the *rte_eventdev* structure associated > - * with the matching device and which has been [automatically] allocated in > - * the *rte_event_devices* array. > - * > - * @return > - * - 0: Success, the device is properly finalised by the driver. > - * In particular, the driver MUST free the *dev_ops* pointer > - * of the *dev* structure. > - * - <0: Error code of the device initialisation failure. > - */ > -typedef int (*eventdev_uninit_t)(struct rte_eventdev *dev); > - > -/** > - * The structure associated with a PMD driver. > - * > - * Each driver acts as a PCI driver and is represented by a generic > - * *event_driver* structure that holds: > - * > - * - An *rte_pci_driver* structure (which must be the first field). > - * > - * - The *eventdev_init* function invoked for each matching PCI device. > - * > - * - The size of the private data to allocate for each matching device. > - */ > -struct rte_eventdev_driver { > - struct rte_pci_driver pci_drv; /**< The PMD is also a PCI driver. */ > - unsigned int dev_private_size; /**< Size of device private data. */ > - > - eventdev_init_t eventdev_init; /**< Device init function. */ > - eventdev_uninit_t eventdev_uninit; /**< Device uninit function. */ > -}; > - > /** Global structure used for maintaining state of allocated event devices */ > struct rte_eventdev_global { > uint8_t nb_devs; /**< Number of devices found */ > @@ -579,18 +525,23 @@ rte_event_pmd_vdev_init(const char *name, size_t dev_private_size, > int > rte_event_pmd_vdev_uninit(const char *name); > > +typedef int (*eventdev_pmd_pci_callback_t)(struct rte_eventdev *dev); > + > /** > * Wrapper for use by pci drivers as a .probe function to attach to a event > * interface. > */ > int rte_event_pmd_pci_probe(struct rte_pci_driver *pci_drv, > - struct rte_pci_device *pci_dev); > + struct rte_pci_device *pci_dev, > + size_t private_data_size, > + eventdev_pmd_pci_callback_t devinit); > > /** > * Wrapper for use by pci drivers as a .remove function to detach a event > * interface. > */ > -int rte_event_pmd_pci_remove(struct rte_pci_device *pci_dev); > +int rte_event_pmd_pci_remove(struct rte_pci_device *pci_dev, > + eventdev_pmd_pci_callback_t devuninit); > > #ifdef __cplusplus > } > -- > 2.13.0 > -- Gaëtan Rivet 6WIND