From patchwork Thu Feb 4 18:50:49 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Xiong, Jianxin" X-Patchwork-Id: 12068445 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 76230C433DB for ; Thu, 4 Feb 2021 19:15:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3A29864F6A for ; Thu, 4 Feb 2021 19:15:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239229AbhBDTOt (ORCPT ); Thu, 4 Feb 2021 14:14:49 -0500 Received: from mga01.intel.com ([192.55.52.88]:43872 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239224AbhBDShE (ORCPT ); Thu, 4 Feb 2021 13:37:04 -0500 IronPort-SDR: xIgkWe/+bTY0EakmZ+xDka/j3E01gH35LJxsp8Szuge0sKgohlM8P5Pn9B7nHWOBWDkUxj10UN 0r0jDXWPImOg== X-IronPort-AV: E=McAfee;i="6000,8403,9885"; a="200296765" X-IronPort-AV: E=Sophos;i="5.81,153,1610438400"; d="scan'208";a="200296765" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Feb 2021 10:35:59 -0800 IronPort-SDR: j+dRb9PLVBUoh7FJsx0k36EEdQpWEK4QSHXT5iXFkllthevnVUzE+rPT7HKT8lJd0w1ViNuWHs B5VKeC0bLPfA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,153,1610438400"; d="scan'208";a="580383232" Received: from cst-dev.jf.intel.com ([10.23.221.69]) by fmsmga006.fm.intel.com with ESMTP; 04 Feb 2021 10:35:58 -0800 From: Jianxin Xiong To: linux-rdma@vger.kernel.org, dri-devel@lists.freedesktop.org Cc: Jianxin Xiong , Doug Ledford , Jason Gunthorpe , Leon Romanovsky , Sumit Semwal , Christian Koenig , Daniel Vetter , Edward Srouji , Yishai Hadas , John Hubbard , Ali Alnubani , Gal Pressman , Emil Velikov Subject: [PATCH rdma-core 1/3] verbs: Fix gcc warnings when building for 32bit systems Date: Thu, 4 Feb 2021 10:50:49 -0800 Message-Id: <1612464651-54073-2-git-send-email-jianxin.xiong@intel.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1612464651-54073-1-git-send-email-jianxin.xiong@intel.com> References: <1612464651-54073-1-git-send-email-jianxin.xiong@intel.com> Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org Commit 6b0a3238289f ("verbs: Support dma-buf based memory region") caused a build failure when building for 32b systems with gcc: $ mkdir build && cd build && CFLAGS="-m32" cmake -GNinja .. \ -DIOCTL_MODE=both -DNO_PYVERBS=1 -DENABLE_WERROR=1 && ninja ... ../libibverbs/cmd_mr.c: In function 'ibv_cmd_reg_dmabuf_mr': ../libibverbs/cmd_mr.c:152:21: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast] vmr->ibv_mr.addr = (void *)offset; ... ../libibverbs/verbs.c: In function 'ibv_reg_dmabuf_mr': ../libibverbs/verbs.c:387:13: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast] mr->addr = (void *)offset; ... Reported-by: Ali Alnubani Signed-off-by: Jianxin Xiong --- libibverbs/cmd_mr.c | 2 +- libibverbs/verbs.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/libibverbs/cmd_mr.c b/libibverbs/cmd_mr.c index af0fad7..736fce0 100644 --- a/libibverbs/cmd_mr.c +++ b/libibverbs/cmd_mr.c @@ -149,7 +149,7 @@ int ibv_cmd_reg_dmabuf_mr(struct ibv_pd *pd, uint64_t offset, size_t length, vmr->ibv_mr.lkey = lkey; vmr->ibv_mr.rkey = rkey; vmr->ibv_mr.pd = pd; - vmr->ibv_mr.addr = (void *)offset; + vmr->ibv_mr.addr = (void *)(uintptr_t)offset; vmr->ibv_mr.length = length; vmr->mr_type = IBV_MR_TYPE_DMABUF_MR; return 0; diff --git a/libibverbs/verbs.c b/libibverbs/verbs.c index b93046a..f666695 100644 --- a/libibverbs/verbs.c +++ b/libibverbs/verbs.c @@ -384,7 +384,7 @@ struct ibv_mr *ibv_reg_dmabuf_mr(struct ibv_pd *pd, uint64_t offset, mr->context = pd->context; mr->pd = pd; - mr->addr = (void *)offset; + mr->addr = (void *)(uintptr_t)offset; mr->length = length; return mr; } From patchwork Thu Feb 4 18:50:50 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Xiong, Jianxin" X-Patchwork-Id: 12068369 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8127DC433E0 for ; Thu, 4 Feb 2021 18:41:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 45A3A64DE1 for ; Thu, 4 Feb 2021 18:41:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239238AbhBDSlS (ORCPT ); Thu, 4 Feb 2021 13:41:18 -0500 Received: from mga01.intel.com ([192.55.52.88]:43869 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238875AbhBDSjG (ORCPT ); Thu, 4 Feb 2021 13:39:06 -0500 IronPort-SDR: jNXBsrRQYd5bFoCrYO/4MMwComHaD4NaozR4zIBQGZa8ktpA9NWpc+jXF0fytTDxqFUB5qbe28 zxxQqUqzAsvQ== X-IronPort-AV: E=McAfee;i="6000,8403,9885"; a="200296766" X-IronPort-AV: E=Sophos;i="5.81,153,1610438400"; d="scan'208";a="200296766" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Feb 2021 10:35:59 -0800 IronPort-SDR: 3HMBmHb3Dn3n1rCWmOHxLzBvVC2kcr/O6TUthZu6avYWVYFL1bWXzBUvNfkXvp6Y3GTmUM3FY2 oGVOPN//BKbQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,153,1610438400"; d="scan'208";a="580383245" Received: from cst-dev.jf.intel.com ([10.23.221.69]) by fmsmga006.fm.intel.com with ESMTP; 04 Feb 2021 10:35:59 -0800 From: Jianxin Xiong To: linux-rdma@vger.kernel.org, dri-devel@lists.freedesktop.org Cc: Jianxin Xiong , Doug Ledford , Jason Gunthorpe , Leon Romanovsky , Sumit Semwal , Christian Koenig , Daniel Vetter , Edward Srouji , Yishai Hadas , John Hubbard , Ali Alnubani , Gal Pressman , Emil Velikov Subject: [PATCH rdma-core 2/3] pyverbs,tests: Cosmetic improvements for dma-buf allocation routines Date: Thu, 4 Feb 2021 10:50:50 -0800 Message-Id: <1612464651-54073-3-git-send-email-jianxin.xiong@intel.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1612464651-54073-1-git-send-email-jianxin.xiong@intel.com> References: <1612464651-54073-1-git-send-email-jianxin.xiong@intel.com> Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org Rename the parameter 'unit' to 'gpu'. Expand GTT to the full name in the comments. Signed-off-by: Jianxin Xiong Reviewed-by: John Hubbard --- pyverbs/dmabuf.pyx | 12 ++++---- pyverbs/dmabuf_alloc.c | 12 ++++---- pyverbs/dmabuf_alloc.h | 2 +- pyverbs/mr.pyx | 6 ++-- tests/test_mr.py | 78 +++++++++++++++++++++++++------------------------- 5 files changed, 55 insertions(+), 55 deletions(-) diff --git a/pyverbs/dmabuf.pyx b/pyverbs/dmabuf.pyx index b9406bd..9ed7f02 100644 --- a/pyverbs/dmabuf.pyx +++ b/pyverbs/dmabuf.pyx @@ -12,7 +12,7 @@ from pyverbs.mr cimport DmaBufMR cdef extern from "dmabuf_alloc.h": cdef struct dmabuf: pass - dmabuf *dmabuf_alloc(unsigned long size, int unit, int gtt) + dmabuf *dmabuf_alloc(unsigned long size, int gpu, int gtt) void dmabuf_free(dmabuf *dmabuf) int dmabuf_get_drm_fd(dmabuf *dmabuf) int dmabuf_get_fd(dmabuf *dmabuf) @@ -20,20 +20,20 @@ cdef extern from "dmabuf_alloc.h": cdef class DmaBuf: - def __init__(self, size, unit=0, gtt=0): + def __init__(self, size, gpu=0, gtt=0): """ Allocate DmaBuf object from a GPU device. This is done through the DRI device interface. Usually this requires the effective user id being a member of the 'render' group. :param size: The size (in number of bytes) of the buffer. - :param unit: The unit number of the GPU to allocate the buffer from. - :param gtt: Allocate from GTT instead of VRAM. + :param gpu: The GPU unit to allocate the buffer from. + :param gtt: Allocate from GTT(Graphics Translation Table) instead of VRAM. :return: The newly created DmaBuf object on success. """ self.dmabuf_mrs = weakref.WeakSet() - self.dmabuf = dmabuf_alloc(size, unit, gtt) + self.dmabuf = dmabuf_alloc(size, gpu, gtt) if self.dmabuf == NULL: - raise PyverbsRDMAErrno(f'Failed to allocate dmabuf of size {size} on unit {unit}') + raise PyverbsRDMAErrno(f'Failed to allocate dmabuf of size {size} on gpu {gpu}') self.drm_fd = dmabuf_get_drm_fd(self.dmabuf) self.fd = dmabuf_get_fd(self.dmabuf) self.map_offset = dmabuf_get_offset(self.dmabuf) diff --git a/pyverbs/dmabuf_alloc.c b/pyverbs/dmabuf_alloc.c index 05eae75..93267bf 100644 --- a/pyverbs/dmabuf_alloc.c +++ b/pyverbs/dmabuf_alloc.c @@ -95,7 +95,7 @@ static int amdgpu_mmap_offset(struct drm *drm, uint32_t handle, return 0; } -static struct drm *drm_open(int unit) +static struct drm *drm_open(int gpu) { char path[32]; struct drm_version version = {}; @@ -107,7 +107,7 @@ static struct drm *drm_open(int unit) if (!drm) return NULL; - snprintf(path, sizeof(path), "/dev/dri/renderD%d", unit + 128); + snprintf(path, sizeof(path), "/dev/dri/renderD%d", gpu + 128); drm->fd = open(path, O_RDWR); if (drm->fd < 0) @@ -204,10 +204,10 @@ struct dmabuf { /* * dmabuf_alloc - allocate a dmabuf from GPU * @size - byte size of the buffer to allocate - * @unit - the GPU unit to use - * @gtt - if true, allocate from GTT instead of VRAM + * @gpu - the GPU unit to use + * @gtt - if true, allocate from GTT(Graphics Translation Table) instead of VRAM */ -struct dmabuf *dmabuf_alloc(uint64_t size, int unit, int gtt) +struct dmabuf *dmabuf_alloc(uint64_t size, int gpu, int gtt) { struct dmabuf *dmabuf; int err; @@ -216,7 +216,7 @@ struct dmabuf *dmabuf_alloc(uint64_t size, int unit, int gtt) if (!dmabuf) return NULL; - dmabuf->drm = drm_open(unit); + dmabuf->drm = drm_open(gpu); if (!dmabuf->drm) goto out_free; diff --git a/pyverbs/dmabuf_alloc.h b/pyverbs/dmabuf_alloc.h index f1b03c5..4698b11 100644 --- a/pyverbs/dmabuf_alloc.h +++ b/pyverbs/dmabuf_alloc.h @@ -10,7 +10,7 @@ struct dmabuf; -struct dmabuf *dmabuf_alloc(uint64_t size, int unit, int gtt); +struct dmabuf *dmabuf_alloc(uint64_t size, int gpu, int gtt); void dmabuf_free(struct dmabuf *dmabuf); int dmabuf_get_drm_fd(struct dmabuf *dmabuf); int dmabuf_get_fd(struct dmabuf *dmabuf); diff --git a/pyverbs/mr.pyx b/pyverbs/mr.pyx index aad47e2..d05d044 100644 --- a/pyverbs/mr.pyx +++ b/pyverbs/mr.pyx @@ -384,7 +384,7 @@ cdef class DMMR(MR): cdef class DmaBufMR(MR): def __init__(self, PD pd not None, length, access, DmaBuf dmabuf=None, - offset=0, unit=0, gtt=0): + offset=0, gpu=0, gtt=0): """ Initializes a DmaBufMR (DMA-BUF Memory Region) of the given length and access flags using the given PD and DmaBuf objects. @@ -393,14 +393,14 @@ cdef class DmaBufMR(MR): :param access: Access flags, see ibv_access_flags enum :param dmabuf: A DmaBuf object. One will be allocated if absent :param offset: Byte offset from the beginning of the dma-buf - :param unit: GPU unit for internal dmabuf allocation + :param gpu: GPU unit for internal dmabuf allocation :param gtt: If true allocate internal dmabuf from GTT instead of VRAM :return: The newly created DMABUFMR """ self.logger = logging.getLogger(self.__class__.__name__) if dmabuf is None: self.is_dmabuf_internal = True - dmabuf = DmaBuf(length + offset, unit, gtt) + dmabuf = DmaBuf(length + offset, gpu, gtt) self.mr = v.ibv_reg_dmabuf_mr(pd.pd, offset, length, offset, dmabuf.fd, access) if self.mr == NULL: raise PyverbsRDMAErrno(f'Failed to register a dma-buf MR. length: {length}, access flags: {access}') diff --git a/tests/test_mr.py b/tests/test_mr.py index 03a645f..028be71 100644 --- a/tests/test_mr.py +++ b/tests/test_mr.py @@ -429,14 +429,14 @@ class DMMRTest(PyverbsAPITestCase): dm_mr.close() -def check_dmabuf_support(unit=0): +def check_dmabuf_support(gpu=0): """ Check if dma-buf allocation is supported by the system. Skip the test on failure. """ - device_num = 128 + unit + device_num = 128 + gpu try: - DmaBuf(1, unit=unit) + DmaBuf(1, gpu=gpu) except PyverbsRDMAError as ex: if ex.error_code == errno.ENOENT: raise unittest.SkipTest(f'Device /dev/dri/renderD{device_num} is not present') @@ -446,13 +446,13 @@ def check_dmabuf_support(unit=0): raise unittest.SkipTest(f'Allocating dmabuf is not supported by /dev/dri/renderD{device_num}') -def check_dmabuf_mr_support(pd, unit=0): +def check_dmabuf_mr_support(pd, gpu=0): """ Check if dma-buf MR registration is supported by the driver. Skip the test on failure """ try: - DmaBufMR(pd, 1, 0, unit=unit) + DmaBufMR(pd, 1, 0, gpu=gpu) except PyverbsRDMAError as ex: if ex.error_code == errno.EOPNOTSUPP: raise unittest.SkipTest('Reg dma-buf MR is not supported by the RDMA driver') @@ -464,22 +464,22 @@ class DmaBufMRTest(PyverbsAPITestCase): """ def setUp(self): super().setUp() - self.unit = self.config['gpu'] + self.gpu = self.config['gpu'] self.gtt = self.config['gtt'] def test_dmabuf_reg_mr(self): """ Test ibv_reg_dmabuf_mr() """ - check_dmabuf_support(self.unit) + check_dmabuf_support(self.gpu) for ctx, attr, attr_ex in self.devices: with PD(ctx) as pd: - check_dmabuf_mr_support(pd, self.unit) + check_dmabuf_mr_support(pd, self.gpu) flags = u.get_dmabuf_access_flags(ctx) for f in flags: len = u.get_mr_length() for off in [0, len//2]: - with DmaBufMR(pd, len, f, offset=off, unit=self.unit, + with DmaBufMR(pd, len, f, offset=off, gpu=self.gpu, gtt=self.gtt) as mr: pass @@ -487,15 +487,15 @@ class DmaBufMRTest(PyverbsAPITestCase): """ Test ibv_dereg_mr() with DmaBufMR """ - check_dmabuf_support(self.unit) + check_dmabuf_support(self.gpu) for ctx, attr, attr_ex in self.devices: with PD(ctx) as pd: - check_dmabuf_mr_support(pd, self.unit) + check_dmabuf_mr_support(pd, self.gpu) flags = u.get_dmabuf_access_flags(ctx) for f in flags: len = u.get_mr_length() for off in [0, len//2]: - with DmaBufMR(pd, len, f, offset=off, unit=self.unit, + with DmaBufMR(pd, len, f, offset=off, gpu=self.gpu, gtt=self.gtt) as mr: mr.close() @@ -503,15 +503,15 @@ class DmaBufMRTest(PyverbsAPITestCase): """ Verify that explicit call to DmaBufMR's close() doesn't fail """ - check_dmabuf_support(self.unit) + check_dmabuf_support(self.gpu) for ctx, attr, attr_ex in self.devices: with PD(ctx) as pd: - check_dmabuf_mr_support(pd, self.unit) + check_dmabuf_mr_support(pd, self.gpu) flags = u.get_dmabuf_access_flags(ctx) for f in flags: len = u.get_mr_length() for off in [0, len//2]: - with DmaBufMR(pd, len, f, offset=off, unit=self.unit, + with DmaBufMR(pd, len, f, offset=off, gpu=self.gpu, gtt=self.gtt) as mr: # Pyverbs supports multiple destruction of objects, # we are not expecting an exception here. @@ -522,10 +522,10 @@ class DmaBufMRTest(PyverbsAPITestCase): """ Verify that illegal flags combination fails as expected """ - check_dmabuf_support(self.unit) + check_dmabuf_support(self.gpu) for ctx, attr, attr_ex in self.devices: with PD(ctx) as pd: - check_dmabuf_mr_support(pd, self.unit) + check_dmabuf_mr_support(pd, self.gpu) for i in range(5): flags = random.sample([e.IBV_ACCESS_REMOTE_WRITE, e.IBV_ACCESS_REMOTE_ATOMIC], @@ -535,7 +535,7 @@ class DmaBufMRTest(PyverbsAPITestCase): mr_flags += i.value try: DmaBufMR(pd, u.get_mr_length(), mr_flags, - unit=self.unit, gtt=self.gtt) + gpu=self.gpu, gtt=self.gtt) except PyverbsRDMAError as err: assert 'Failed to register a dma-buf MR' in err.args[0] else: @@ -545,17 +545,17 @@ class DmaBufMRTest(PyverbsAPITestCase): """ Test writing to DmaBufMR's buffer """ - check_dmabuf_support(self.unit) + check_dmabuf_support(self.gpu) for ctx, attr, attr_ex in self.devices: with PD(ctx) as pd: - check_dmabuf_mr_support(pd, self.unit) + check_dmabuf_mr_support(pd, self.gpu) for i in range(10): mr_len = u.get_mr_length() flags = u.get_dmabuf_access_flags(ctx) for f in flags: for mr_off in [0, mr_len//2]: with DmaBufMR(pd, mr_len, f, offset=mr_off, - unit=self.unit, gtt=self.gtt) as mr: + gpu=self.gpu, gtt=self.gtt) as mr: write_len = min(random.randint(1, MAX_IO_LEN), mr_len) mr.write('a' * write_len, write_len) @@ -564,17 +564,17 @@ class DmaBufMRTest(PyverbsAPITestCase): """ Test reading from DmaBufMR's buffer """ - check_dmabuf_support(self.unit) + check_dmabuf_support(self.gpu) for ctx, attr, attr_ex in self.devices: with PD(ctx) as pd: - check_dmabuf_mr_support(pd, self.unit) + check_dmabuf_mr_support(pd, self.gpu) for i in range(10): mr_len = u.get_mr_length() flags = u.get_dmabuf_access_flags(ctx) for f in flags: for mr_off in [0, mr_len//2]: with DmaBufMR(pd, mr_len, f, offset=mr_off, - unit=self.unit, gtt=self.gtt) as mr: + gpu=self.gpu, gtt=self.gtt) as mr: write_len = min(random.randint(1, MAX_IO_LEN), mr_len) write_str = 'a' * write_len @@ -588,14 +588,14 @@ class DmaBufMRTest(PyverbsAPITestCase): """ Test reading lkey property """ - check_dmabuf_support(self.unit) + check_dmabuf_support(self.gpu) for ctx, attr, attr_ex in self.devices: with PD(ctx) as pd: - check_dmabuf_mr_support(pd, self.unit) + check_dmabuf_mr_support(pd, self.gpu) length = u.get_mr_length() flags = u.get_dmabuf_access_flags(ctx) for f in flags: - with DmaBufMR(pd, length, f, unit=self.unit, + with DmaBufMR(pd, length, f, gpu=self.gpu, gtt=self.gtt) as mr: mr.lkey @@ -603,38 +603,38 @@ class DmaBufMRTest(PyverbsAPITestCase): """ Test reading rkey property """ - check_dmabuf_support(self.unit) + check_dmabuf_support(self.gpu) for ctx, attr, attr_ex in self.devices: with PD(ctx) as pd: - check_dmabuf_mr_support(pd, self.unit) + check_dmabuf_mr_support(pd, self.gpu) length = u.get_mr_length() flags = u.get_dmabuf_access_flags(ctx) for f in flags: - with DmaBufMR(pd, length, f, unit=self.unit, + with DmaBufMR(pd, length, f, gpu=self.gpu, gtt=self.gtt) as mr: mr.rkey class DmaBufRC(RCResources): - def __init__(self, dev_name, ib_port, gid_index, unit, gtt): + def __init__(self, dev_name, ib_port, gid_index, gpu, gtt): """ Initialize an DmaBufRC object. :param dev_name: Device name to be used :param ib_port: IB port of the device to use :param gid_index: Which GID index to use - :param unit: GPU unit to allocate dmabuf from + :param gpu: GPU unit to allocate dmabuf from :gtt: Allocate dmabuf from GTT instead og VRAM """ - self.unit = unit + self.gpu = gpu self.gtt = gtt super(DmaBufRC, self).__init__(dev_name=dev_name, ib_port=ib_port, gid_index=gid_index) def create_mr(self): - check_dmabuf_support(self.unit) - check_dmabuf_mr_support(self.pd, self.unit) + check_dmabuf_support(self.gpu) + check_dmabuf_mr_support(self.pd, self.gpu) access = e.IBV_ACCESS_LOCAL_WRITE | e.IBV_ACCESS_REMOTE_WRITE - mr = DmaBufMR(self.pd, self.msg_size, access, unit=self.unit, + mr = DmaBufMR(self.pd, self.msg_size, access, gpu=self.gpu, gtt=self.gtt) self.mr = mr @@ -649,7 +649,7 @@ class DmaBufTestCase(RDMATestCase): def setUp(self): super(DmaBufTestCase, self).setUp() self.iters = 100 - self.unit = self.config['gpu'] + self.gpu = self.config['gpu'] self.gtt = self.config['gtt'] def create_players(self, resource, **resource_arg): @@ -671,7 +671,7 @@ class DmaBufTestCase(RDMATestCase): """ Test send/recv using dma-buf MR over RC """ - client, server = self.create_players(DmaBufRC, unit=self.unit, + client, server = self.create_players(DmaBufRC, gpu=self.gpu, gtt=self.gtt) u.traffic(client, server, self.iters, self.gid_index, self.ib_port) @@ -679,7 +679,7 @@ class DmaBufTestCase(RDMATestCase): """ Test rdma write using dma-buf MR """ - client, server = self.create_players(DmaBufRC, unit=self.unit, + client, server = self.create_players(DmaBufRC, gpu=self.gpu, gtt=self.gtt) server.rkey = client.mr.rkey server.remote_addr = client.mr.offset From patchwork Thu Feb 4 18:50:51 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Xiong, Jianxin" X-Patchwork-Id: 12068371 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A9199C433DB for ; Thu, 4 Feb 2021 18:41:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7864564E4F for ; Thu, 4 Feb 2021 18:41:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239259AbhBDSlb (ORCPT ); Thu, 4 Feb 2021 13:41:31 -0500 Received: from mga01.intel.com ([192.55.52.88]:43872 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238757AbhBDSj0 (ORCPT ); Thu, 4 Feb 2021 13:39:26 -0500 IronPort-SDR: Rb9YWWIC3yz/QS7kBBcQSsAJy29DHCBtNz6ZDfXVxuKd3Ns41gXaQe1mmX5YWHT9Nl5srGMz91 TTj6KzBou/+w== X-IronPort-AV: E=McAfee;i="6000,8403,9885"; a="200296768" X-IronPort-AV: E=Sophos;i="5.81,153,1610438400"; d="scan'208";a="200296768" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Feb 2021 10:35:59 -0800 IronPort-SDR: wNSpWYdSiQZTpEk8tiZ2sSLkVDrfKFn7TxPyS0CSd9XOJqa4rUaT7SR/veJZ7vExpiM+sX2VPx s27d41rCzccw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,153,1610438400"; d="scan'208";a="580383251" Received: from cst-dev.jf.intel.com ([10.23.221.69]) by fmsmga006.fm.intel.com with ESMTP; 04 Feb 2021 10:35:59 -0800 From: Jianxin Xiong To: linux-rdma@vger.kernel.org, dri-devel@lists.freedesktop.org Cc: Jianxin Xiong , Doug Ledford , Jason Gunthorpe , Leon Romanovsky , Sumit Semwal , Christian Koenig , Daniel Vetter , Edward Srouji , Yishai Hadas , John Hubbard , Ali Alnubani , Gal Pressman , Emil Velikov Subject: [PATCH rdma-core 3/3] configure: Add check for the presence of DRM headers Date: Thu, 4 Feb 2021 10:50:51 -0800 Message-Id: <1612464651-54073-4-git-send-email-jianxin.xiong@intel.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1612464651-54073-1-git-send-email-jianxin.xiong@intel.com> References: <1612464651-54073-1-git-send-email-jianxin.xiong@intel.com> Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org Compilation of pyverbs/dmabuf_alloc.c depends on a few DRM headers that are installed by either the kernel-header or the libdrm package. The installation is optional and the location is not unique. The standard locations (such as /usr/include/drm, /usr/include/libdrm) are checked first. If failed, pkg-config is tried to find the include path of custom libdrm installation. The dmabuf allocation routines now return suitable error when the headers are not available. The related tests will recognize this error code and skip. Signed-off-by: Jianxin Xiong --- CMakeLists.txt | 7 +++++++ buildlib/Finddrm.cmake | 19 +++++++++++++++++++ buildlib/config.h.in | 2 ++ pyverbs/dmabuf_alloc.c | 47 ++++++++++++++++++++++++++++++++++++++++++----- 4 files changed, 70 insertions(+), 5 deletions(-) create mode 100644 buildlib/Finddrm.cmake diff --git a/CMakeLists.txt b/CMakeLists.txt index 4113423..feaba3a 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -515,6 +515,13 @@ find_package(Systemd) include_directories(${SYSTEMD_INCLUDE_DIRS}) RDMA_DoFixup("${SYSTEMD_FOUND}" "systemd/sd-daemon.h") +# drm headers +find_package(drm) +if (DRM_INCLUDE_DIRS) + include_directories(${DRM_INCLUDE_DIRS}) + set(HAVE_DRM_H 1) +endif() + #------------------------- # Apply fixups diff --git a/buildlib/Finddrm.cmake b/buildlib/Finddrm.cmake new file mode 100644 index 0000000..6f8e5f2 --- /dev/null +++ b/buildlib/Finddrm.cmake @@ -0,0 +1,19 @@ +# COPYRIGHT (c) 2021 Intel Corporation. +# Licensed under BSD (MIT variant) or GPLv2. See COPYING. + +# Check standard locations first +find_path(DRM_INCLUDE_DIRS "drm.h" PATH_SUFFIXES "drm" "libdrm") + +# Check custom libdrm installation, if any +if (NOT DRM_INCLUDE_DIRS) + execute_process(COMMAND pkg-config --cflags-only-I libdrm + OUTPUT_VARIABLE _LIBDRM + RESULT_VARIABLE _LIBDRM_RESULT + ERROR_QUIET) + + if (NOT _LIBDRM_RESULT) + string(REGEX REPLACE "^-I" "" DRM_INCLUDE_DIRS "${_LIBDRM}") + endif() + unset(_LIBDRM) + unset(_LIBDRM_RESULT) +endif() diff --git a/buildlib/config.h.in b/buildlib/config.h.in index c5b0bf5..e8dff54 100644 --- a/buildlib/config.h.in +++ b/buildlib/config.h.in @@ -67,6 +67,8 @@ # define VERBS_WRITE_ONLY 0 #endif +#define HAVE_DRM_H @HAVE_DRM_H@ + // Configuration defaults #define IBACM_SERVER_MODE_UNIX 0 diff --git a/pyverbs/dmabuf_alloc.c b/pyverbs/dmabuf_alloc.c index 93267bf..22a8ab8 100644 --- a/pyverbs/dmabuf_alloc.c +++ b/pyverbs/dmabuf_alloc.c @@ -9,13 +9,18 @@ #include #include #include -#include -#include -#include -#include + +#include "config.h" +#include "dmabuf_alloc.h" + +#if HAVE_DRM_H + +#include +#include +#include +#include #include #include -#include "dmabuf_alloc.h" /* * Abstraction of the buffer allocation mechanism using the DRM interface. @@ -276,3 +281,35 @@ uint64_t dmabuf_get_offset(struct dmabuf *dmabuf) return dmabuf->map_offset; } +#else + +struct dmabuf *dmabuf_alloc(uint64_t size, int gpu, int gtt) +{ + errno = EOPNOTSUPP; + return NULL; +} + +void dmabuf_free(struct dmabuf *dmabuf) +{ + errno = EOPNOTSUPP; +} + +int dmabuf_get_drm_fd(struct dmabuf *dmabuf) +{ + errno = EOPNOTSUPP; + return -1; +} + +int dmabuf_get_fd(struct dmabuf *dmabuf) +{ + errno = EOPNOTSUPP; + return -1; +} + +uint64_t dmabuf_get_offset(struct dmabuf *dmabuf) +{ + errno = EOPNOTSUPP; + return -1; +} + +#endif