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From: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
To: Harman Kalra <hkalra@marvell.com>
Cc: <dev@dpdk.org>, Anatoly Burakov <anatoly.burakov@intel.com>
Subject: Re: [dpdk-dev] [PATCH v1 6/7] eal/interrupts: make interrupt handle structure opaque
Date: Sun, 3 Oct 2021 21:16:19 +0300
Message-ID: <20211003211619.47a5834e@sovereign> (raw)
In-Reply-To: <20210903124102.47425-7-hkalra@marvell.com>

2021-09-03 18:11 (UTC+0530), Harman Kalra:
> [...]
> @@ -31,11 +54,40 @@ struct rte_intr_handle *rte_intr_handle_instance_alloc(int size,
>  	}
>  
>  	for (i = 0; i < size; i++) {
> +		if (from_hugepage)
> +			intr_handle[i].efds = rte_zmalloc(NULL,
> +				RTE_MAX_RXTX_INTR_VEC_ID * sizeof(uint32_t), 0);
> +		else
> +			intr_handle[i].efds = calloc(1,
> +				   RTE_MAX_RXTX_INTR_VEC_ID * sizeof(uint32_t));
> +		if (!intr_handle[i].efds) {
> +			RTE_LOG(ERR, EAL, "Fail to allocate event fd list\n");
> +			rte_errno = ENOMEM;
> +			goto fail;
> +		}
> +
> +		if (from_hugepage)
> +			intr_handle[i].elist = rte_zmalloc(NULL,
> +					RTE_MAX_RXTX_INTR_VEC_ID *
> +					sizeof(struct rte_epoll_event), 0);
> +		else
> +			intr_handle[i].elist = calloc(1,
> +					RTE_MAX_RXTX_INTR_VEC_ID *
> +					sizeof(struct rte_epoll_event));
> +		if (!intr_handle[i].elist) {
> +			RTE_LOG(ERR, EAL, "fail to allocate event fd list\n");
> +			rte_errno = ENOMEM;
> +			goto fail;
> +		}
>  		intr_handle[i].nb_intr = RTE_MAX_RXTX_INTR_VEC_ID;
>  		intr_handle[i].alloc_from_hugepage = from_hugepage;
>  	}
>  
>  	return intr_handle;
> +fail:
> +	free(intr_handle->efds);
> +	free(intr_handle);
> +	return NULL;

This is incorrect if "from_hugepage" is set.

>  }
>  
>  struct rte_intr_handle *rte_intr_handle_instance_index_get(
> @@ -73,12 +125,48 @@ int rte_intr_handle_instance_index_set(struct rte_intr_handle *intr_handle,
>  	}
>  
>  	intr_handle[index].fd = src->fd;
> -	intr_handle[index].vfio_dev_fd = src->vfio_dev_fd;
> +	intr_handle[index].dev_fd = src->dev_fd;
> +
>  	intr_handle[index].type = src->type;
>  	intr_handle[index].max_intr = src->max_intr;
>  	intr_handle[index].nb_efd = src->nb_efd;
>  	intr_handle[index].efd_counter_size = src->efd_counter_size;
>  
> +	if (intr_handle[index].nb_intr != src->nb_intr) {
> +		if (src->alloc_from_hugepage)
> +			intr_handle[index].efds =
> +				rte_realloc(intr_handle[index].efds,
> +					    src->nb_intr *
> +					    sizeof(uint32_t), 0);
> +		else
> +			intr_handle[index].efds =
> +				realloc(intr_handle[index].efds,
> +					src->nb_intr * sizeof(uint32_t));
> +		if (intr_handle[index].efds == NULL) {
> +			RTE_LOG(ERR, EAL, "Failed to realloc the efds list");
> +			rte_errno = ENOMEM;
> +			goto fail;
> +		}
> +
> +		if (src->alloc_from_hugepage)
> +			intr_handle[index].elist =
> +				rte_realloc(intr_handle[index].elist,
> +					    src->nb_intr *
> +					    sizeof(struct rte_epoll_event), 0);
> +		else
> +			intr_handle[index].elist =
> +				realloc(intr_handle[index].elist,
> +					src->nb_intr *
> +					sizeof(struct rte_epoll_event));
> +		if (intr_handle[index].elist == NULL) {
> +			RTE_LOG(ERR, EAL, "Failed to realloc the event list");
> +			rte_errno = ENOMEM;
> +			goto fail;
> +		}
> +
> +		intr_handle[index].nb_intr = src->nb_intr;
> +	}
> +

This implementation leaves "intr_handle" in an invalid state
and leaks memory on error paths.

>  	memcpy(intr_handle[index].efds, src->efds, src->nb_intr);
>  	memcpy(intr_handle[index].elist, src->elist, src->nb_intr);
>  
> @@ -87,6 +175,45 @@ int rte_intr_handle_instance_index_set(struct rte_intr_handle *intr_handle,
>  	return rte_errno;
>  }
>  
> +int rte_intr_handle_event_list_update(struct rte_intr_handle *intr_handle,
> +				      int size)
> +{
> +	if (intr_handle == NULL) {
> +		RTE_LOG(ERR, EAL, "Interrupt instance unallocated\n");
> +		rte_errno = ENOTSUP;
> +		goto fail;
> +	}
> +
> +	if (size == 0) {
> +		RTE_LOG(ERR, EAL, "Size can't be zero\n");
> +		rte_errno = EINVAL;
> +		goto fail;
> +	}
> +
> +	intr_handle->efds = realloc(intr_handle->efds,
> +					  size * sizeof(uint32_t));
> +	if (intr_handle->efds == NULL) {
> +		RTE_LOG(ERR, EAL, "Failed to realloc the efds list");
> +		rte_errno = ENOMEM;
> +		goto fail;
> +	}
> +
> +	intr_handle->elist = realloc(intr_handle->elist,
> +				     size * sizeof(struct rte_epoll_event));
> +	if (intr_handle->elist == NULL) {
> +		RTE_LOG(ERR, EAL, "Failed to realloc the event list");
> +		rte_errno = ENOMEM;
> +		goto fail;
> +	}
> +
> +	intr_handle->nb_intr = size;
> +
> +	return 0;
> +fail:
> +	return rte_errno;
> +}
> +
> +

Same here.

>  [...]
> diff --git a/lib/eal/include/rte_interrupts.h b/lib/eal/include/rte_interrupts.h
> index afc3262967..7dfb849eea 100644
> --- a/lib/eal/include/rte_interrupts.h
> +++ b/lib/eal/include/rte_interrupts.h
> @@ -25,9 +25,29 @@ extern "C" {
>  /** Interrupt handle */
>  struct rte_intr_handle;
>  
> -#define RTE_INTR_HANDLE_DEFAULT_SIZE  1
> +#define RTE_MAX_RXTX_INTR_VEC_ID      512
> +#define RTE_INTR_VEC_ZERO_OFFSET      0
> +#define RTE_INTR_VEC_RXTX_OFFSET      1
> +
> +/**
> + * The interrupt source type, e.g. UIO, VFIO, ALARM etc.
> + */
> +enum rte_intr_handle_type {
> +	RTE_INTR_HANDLE_UNKNOWN = 0,  /**< generic unknown handle */
> +	RTE_INTR_HANDLE_UIO,          /**< uio device handle */
> +	RTE_INTR_HANDLE_UIO_INTX,     /**< uio generic handle */
> +	RTE_INTR_HANDLE_VFIO_LEGACY,  /**< vfio device handle (legacy) */
> +	RTE_INTR_HANDLE_VFIO_MSI,     /**< vfio device handle (MSI) */
> +	RTE_INTR_HANDLE_VFIO_MSIX,    /**< vfio device handle (MSIX) */
> +	RTE_INTR_HANDLE_ALARM,        /**< alarm handle */
> +	RTE_INTR_HANDLE_EXT,          /**< external handler */
> +	RTE_INTR_HANDLE_VDEV,         /**< virtual device */
> +	RTE_INTR_HANDLE_DEV_EVENT,    /**< device event handle */
> +	RTE_INTR_HANDLE_VFIO_REQ,     /**< VFIO request handle */
> +	RTE_INTR_HANDLE_MAX           /**< count of elements */

Enums shouldn't have a _MAX member, can we remove it?

> +};
>  
> -#include "rte_eal_interrupts.h"
> +#define RTE_INTR_HANDLE_DEFAULT_SIZE  1

I find this constant more cluttering call sites than helpful.
If a handle is allocated with a calloc-like function, plain 1 reads just fine.

  reply	other threads:[~2021-10-03 18:16 UTC|newest]

Thread overview: 152+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-26 14:57 [dpdk-dev] [RFC 0/7] make rte_intr_handle internal Harman Kalra
2021-08-26 14:57 ` [dpdk-dev] [RFC 1/7] eal: interrupt handle API prototypes Harman Kalra
2021-08-31 15:52   ` Kinsella, Ray
2021-08-26 14:57 ` [dpdk-dev] [RFC 2/7] eal/interrupts: implement get set APIs Harman Kalra
2021-08-31 15:53   ` Kinsella, Ray
2021-08-26 14:57 ` [dpdk-dev] [RFC 3/7] eal/interrupts: avoid direct access to interrupt handle Harman Kalra
2021-08-26 14:57 ` [dpdk-dev] [RFC 4/7] test/interrupt: apply get set interrupt handle APIs Harman Kalra
2021-08-26 14:57 ` [dpdk-dev] [RFC 5/7] drivers: remove direct access to interrupt handle fields Harman Kalra
2021-08-26 14:57 ` [dpdk-dev] [RFC 6/7] eal/interrupts: make interrupt handle structure opaque Harman Kalra
2021-08-26 14:57 ` [dpdk-dev] [RFC 7/7] eal/alarm: introduce alarm fini routine Harman Kalra
2021-09-03 12:40 ` [dpdk-dev] [PATCH v1 0/7] make rte_intr_handle internal Harman Kalra
2021-09-03 12:40   ` [dpdk-dev] [PATCH v1 1/7] eal: interrupt handle API prototypes Harman Kalra
2021-09-03 12:40   ` [dpdk-dev] [PATCH v1 2/7] eal/interrupts: implement get set APIs Harman Kalra
2021-09-28 15:46     ` David Marchand
2021-10-04  8:51       ` [dpdk-dev] [EXT] " Harman Kalra
2021-10-04  9:57         ` David Marchand
2021-10-12 15:22           ` Thomas Monjalon
2021-10-13 17:54             ` Harman Kalra
2021-10-13 17:57               ` Harman Kalra
2021-10-13 18:52                 ` Thomas Monjalon
2021-10-14  8:22                   ` Thomas Monjalon
2021-10-14  9:31                     ` Harman Kalra
2021-10-14  9:37                       ` David Marchand
2021-10-14  9:41                       ` Thomas Monjalon
2021-10-14 10:31                         ` Harman Kalra
2021-10-14 10:35                           ` Thomas Monjalon
2021-10-14 10:44                             ` Harman Kalra
2021-10-14 12:04                               ` Thomas Monjalon
2021-10-14 10:25                       ` Dmitry Kozlyuk
2021-10-03 18:05     ` [dpdk-dev] " Dmitry Kozlyuk
2021-10-04 10:37       ` [dpdk-dev] [EXT] " Harman Kalra
2021-10-04 11:18         ` Dmitry Kozlyuk
2021-10-04 14:03           ` Harman Kalra
2021-09-03 12:40   ` [dpdk-dev] [PATCH v1 3/7] eal/interrupts: avoid direct access to interrupt handle Harman Kalra
2021-09-03 12:40   ` [dpdk-dev] [PATCH v1 4/7] test/interrupt: apply get set interrupt handle APIs Harman Kalra
2021-09-03 12:41   ` [dpdk-dev] [PATCH v1 5/7] drivers: remove direct access to interrupt handle fields Harman Kalra
2021-09-03 12:41   ` [dpdk-dev] [PATCH v1 6/7] eal/interrupts: make interrupt handle structure opaque Harman Kalra
2021-10-03 18:16     ` Dmitry Kozlyuk [this message]
2021-10-04 14:09       ` [dpdk-dev] [EXT] " Harman Kalra
2021-09-03 12:41   ` [dpdk-dev] [PATCH v1 7/7] eal/alarm: introduce alarm fini routine Harman Kalra
2021-09-15 14:13   ` [dpdk-dev] [PATCH v1 0/7] make rte_intr_handle internal Harman Kalra
2021-09-23  8:20   ` David Marchand
2021-10-05 12:14 ` [dpdk-dev] [PATCH v2 0/6] " Harman Kalra
2021-10-05 12:14   ` [dpdk-dev] [PATCH v2 1/6] eal/interrupts: implement get set APIs Harman Kalra
2021-10-14  0:58     ` Dmitry Kozlyuk
2021-10-14 17:15       ` [dpdk-dev] [EXT] " Harman Kalra
2021-10-14 17:53         ` Dmitry Kozlyuk
2021-10-15  7:53           ` Thomas Monjalon
2021-10-14  7:31     ` [dpdk-dev] " David Marchand
2021-10-05 12:14   ` [dpdk-dev] [PATCH v2 2/6] eal/interrupts: avoid direct access to interrupt handle Harman Kalra
2021-10-14  0:59     ` Dmitry Kozlyuk
2021-10-14 17:31       ` [dpdk-dev] [EXT] " Harman Kalra
2021-10-14 17:53         ` Dmitry Kozlyuk
2021-10-05 12:14   ` [dpdk-dev] [PATCH v2 3/6] test/interrupt: apply get set interrupt handle APIs Harman Kalra
2021-10-05 12:15   ` [dpdk-dev] [PATCH v2 4/6] drivers: remove direct access to interrupt handle Harman Kalra
2021-10-05 12:15   ` [dpdk-dev] [PATCH v2 5/6] eal/interrupts: make interrupt handle structure opaque Harman Kalra
2021-10-05 12:15   ` [dpdk-dev] [PATCH v2 6/6] eal/alarm: introduce alarm fini routine Harman Kalra
2021-10-05 16:07 ` [dpdk-dev] [RFC 0/7] make rte_intr_handle internal Stephen Hemminger
2021-10-07 10:57   ` [dpdk-dev] [EXT] " Harman Kalra
2021-10-18 19:37 ` [dpdk-dev] [PATCH v3 " Harman Kalra
2021-10-18 19:37   ` [dpdk-dev] [PATCH v3 1/7] malloc: introduce malloc is ready API Harman Kalra
2021-10-19 15:53     ` Thomas Monjalon
2021-10-18 19:37   ` [dpdk-dev] [PATCH v3 2/7] eal/interrupts: implement get set APIs Harman Kalra
2021-10-18 22:07     ` Dmitry Kozlyuk
2021-10-19  8:50       ` [dpdk-dev] [EXT] " Harman Kalra
2021-10-19 18:44         ` Harman Kalra
2021-10-18 22:56     ` [dpdk-dev] " Stephen Hemminger
2021-10-19  8:32       ` [dpdk-dev] [EXT] " Harman Kalra
2021-10-19 15:58         ` Thomas Monjalon
2021-10-20 15:30         ` Dmitry Kozlyuk
2021-10-21  9:16           ` Harman Kalra
2021-10-21 12:33             ` Dmitry Kozlyuk
2021-10-21 13:32               ` David Marchand
2021-10-21 16:05                 ` Harman Kalra
2021-10-18 19:37   ` [dpdk-dev] [PATCH v3 3/7] eal/interrupts: avoid direct access to interrupt handle Harman Kalra
2021-10-18 19:37   ` [dpdk-dev] [PATCH v3 4/7] test/interrupt: apply get set interrupt handle APIs Harman Kalra
2021-10-18 19:37   ` [dpdk-dev] [PATCH v3 5/7] drivers: remove direct access to interrupt handle Harman Kalra
2021-10-18 19:37   ` [dpdk-dev] [PATCH v3 6/7] eal/interrupts: make interrupt handle structure opaque Harman Kalra
2021-10-18 19:37   ` [dpdk-dev] [PATCH v3 7/7] eal/alarm: introduce alarm fini routine Harman Kalra
2021-10-19 18:35 ` [dpdk-dev] [PATCH v4 0/7] make rte_intr_handle internal Harman Kalra
2021-10-19 18:35   ` [dpdk-dev] [PATCH v4 1/7] malloc: introduce malloc is ready API Harman Kalra
2021-10-19 22:01     ` Dmitry Kozlyuk
2021-10-19 22:04       ` Dmitry Kozlyuk
2021-10-20  9:01         ` [dpdk-dev] [EXT] " Harman Kalra
2021-10-19 18:35   ` [dpdk-dev] [PATCH v4 2/7] eal/interrupts: implement get set APIs Harman Kalra
2021-10-20  6:14     ` David Marchand
2021-10-20 14:29       ` Dmitry Kozlyuk
2021-10-20 16:15     ` Dmitry Kozlyuk
2021-10-19 18:35   ` [dpdk-dev] [PATCH v4 3/7] eal/interrupts: avoid direct access to interrupt handle Harman Kalra
2021-10-19 21:27     ` Dmitry Kozlyuk
2021-10-20  9:25       ` [dpdk-dev] [EXT] " Harman Kalra
2021-10-20  9:52         ` Dmitry Kozlyuk
2021-10-19 18:35   ` [dpdk-dev] [PATCH v4 4/7] test/interrupt: apply get set interrupt handle APIs Harman Kalra
2021-10-19 18:35   ` [dpdk-dev] [PATCH v4 5/7] drivers: remove direct access to interrupt handle Harman Kalra
2021-10-20  1:57     ` Hyong Youb Kim (hyonkim)
2021-10-19 18:35   ` [dpdk-dev] [PATCH v4 6/7] eal/interrupts: make interrupt handle structure opaque Harman Kalra
2021-10-19 18:35   ` [dpdk-dev] [PATCH v4 7/7] eal/alarm: introduce alarm fini routine Harman Kalra
2021-10-19 21:39     ` Dmitry Kozlyuk
2021-10-22 20:49 ` [dpdk-dev] [PATCH v5 0/6] make rte_intr_handle internal Harman Kalra
2021-10-22 20:49   ` [dpdk-dev] [PATCH v5 1/6] eal/interrupts: implement get set APIs Harman Kalra
2021-10-22 23:33     ` Dmitry Kozlyuk
2021-10-22 20:49   ` [dpdk-dev] [PATCH v5 2/6] eal/interrupts: avoid direct access to interrupt handle Harman Kalra
2021-10-22 23:33     ` Dmitry Kozlyuk
2021-10-22 20:49   ` [dpdk-dev] [PATCH v5 3/6] test/interrupt: apply get set interrupt handle APIs Harman Kalra
2021-10-22 20:49   ` [dpdk-dev] [PATCH v5 4/6] drivers: remove direct access to interrupt handle Harman Kalra
2021-10-22 20:49   ` [dpdk-dev] [PATCH v5 5/6] eal/interrupts: make interrupt handle structure opaque Harman Kalra
2021-10-22 23:33     ` Dmitry Kozlyuk
2021-10-22 20:49   ` [dpdk-dev] [PATCH v5 6/6] eal/alarm: introduce alarm fini routine Harman Kalra
2021-10-22 23:33     ` Dmitry Kozlyuk
2021-10-22 23:37       ` Dmitry Kozlyuk
2021-10-24 20:04   ` [dpdk-dev] [PATCH v6 0/9] make rte_intr_handle internal David Marchand
2021-10-24 20:04     ` [dpdk-dev] [PATCH v6 1/9] interrupts: add allocator and accessors David Marchand
2021-10-24 20:04     ` [dpdk-dev] [PATCH v6 2/9] interrupts: remove direct access to interrupt handle David Marchand
2021-10-25  6:57       ` David Marchand
2021-10-24 20:04     ` [dpdk-dev] [PATCH v6 3/9] test/interrupts: " David Marchand
2021-10-24 20:04     ` [dpdk-dev] [PATCH v6 4/9] alarm: " David Marchand
2021-10-25 10:49       ` Dmitry Kozlyuk
2021-10-25 11:09         ` David Marchand
2021-10-24 20:04     ` [dpdk-dev] [PATCH v6 5/9] lib: " David Marchand
2021-10-24 20:04     ` [dpdk-dev] [PATCH v6 6/9] drivers: " David Marchand
2021-10-24 20:04     ` [dpdk-dev] [PATCH v6 7/9] interrupts: make interrupt handle structure opaque David Marchand
2021-10-24 20:04     ` [dpdk-dev] [PATCH v6 8/9] interrupts: rename device specific file descriptor David Marchand
2021-10-24 20:04     ` [dpdk-dev] [PATCH v6 9/9] interrupts: extend event list David Marchand
2021-10-25 10:49       ` Dmitry Kozlyuk
2021-10-25 11:11         ` David Marchand
2021-10-25 13:04   ` [dpdk-dev] [PATCH v5 0/6] make rte_intr_handle internal Raslan Darawsheh
2021-10-25 13:09     ` David Marchand
2021-10-25 13:34   ` [dpdk-dev] [PATCH v7 0/9] " David Marchand
2021-10-25 13:34     ` [dpdk-dev] [PATCH v7 1/9] interrupts: add allocator and accessors David Marchand
2021-10-25 13:34     ` [dpdk-dev] [PATCH v7 2/9] interrupts: remove direct access to interrupt handle David Marchand
2021-10-25 13:34     ` [dpdk-dev] [PATCH v7 3/9] test/interrupts: " David Marchand
2021-10-25 13:34     ` [dpdk-dev] [PATCH v7 4/9] alarm: " David Marchand
2021-10-25 13:34     ` [dpdk-dev] [PATCH v7 5/9] lib: " David Marchand
2021-10-28  6:14       ` Jiang, YuX
2021-10-25 13:34     ` [dpdk-dev] [PATCH v7 6/9] drivers: " David Marchand
2021-10-25 13:34     ` [dpdk-dev] [PATCH v7 7/9] interrupts: make interrupt handle structure opaque David Marchand
2021-10-25 13:34     ` [dpdk-dev] [PATCH v7 8/9] interrupts: rename device specific file descriptor David Marchand
2021-10-25 13:34     ` [dpdk-dev] [PATCH v7 9/9] interrupts: extend event list David Marchand
2021-10-25 14:27   ` [dpdk-dev] [PATCH v8 0/9] make rte_intr_handle internal David Marchand
2021-10-25 14:27     ` [dpdk-dev] [PATCH v8 1/9] interrupts: add allocator and accessors David Marchand
2021-10-25 14:27     ` [dpdk-dev] [PATCH v8 2/9] interrupts: remove direct access to interrupt handle David Marchand
2021-10-25 14:27     ` [dpdk-dev] [PATCH v8 3/9] test/interrupts: " David Marchand
2021-10-25 14:27     ` [dpdk-dev] [PATCH v8 4/9] alarm: " David Marchand
2021-10-25 14:27     ` [dpdk-dev] [PATCH v8 5/9] lib: " David Marchand
2021-10-25 14:27     ` [dpdk-dev] [PATCH v8 6/9] drivers: " David Marchand
2021-10-25 14:27     ` [dpdk-dev] [PATCH v8 7/9] interrupts: make interrupt handle structure opaque David Marchand
2021-10-25 14:27     ` [dpdk-dev] [PATCH v8 8/9] interrupts: rename device specific file descriptor David Marchand
2021-10-25 14:27     ` [dpdk-dev] [PATCH v8 9/9] interrupts: extend event list David Marchand
2021-10-28 15:58       ` Ji, Kai
2021-10-28 17:16         ` David Marchand
2021-10-25 14:32     ` [dpdk-dev] [PATCH v8 0/9] make rte_intr_handle internal Raslan Darawsheh
2021-10-25 19:24     ` David Marchand

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