From owner-svn-src-head@freebsd.org Fri Sep 27 02:09:21 2019 Return-Path: Delivered-To: svn-src-head@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id B7A63F25D9; Fri, 27 Sep 2019 02:09:21 +0000 (UTC) (envelope-from mav@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 46fZwx4NPQz4DqS; Fri, 27 Sep 2019 02:09:21 +0000 (UTC) (envelope-from mav@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 75FEF9B19; Fri, 27 Sep 2019 02:09:21 +0000 (UTC) (envelope-from mav@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x8R29LV8033504; Fri, 27 Sep 2019 02:09:21 GMT (envelope-from mav@FreeBSD.org) Received: (from mav@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x8R29LWM033503; Fri, 27 Sep 2019 02:09:21 GMT (envelope-from mav@FreeBSD.org) Message-Id: <201909270209.x8R29LWM033503@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: mav set sender to mav@FreeBSD.org using -f From: Alexander Motin Date: Fri, 27 Sep 2019 02:09:21 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r352787 - head/sys/dev/ioat X-SVN-Group: head X-SVN-Commit-Author: mav X-SVN-Commit-Paths: head/sys/dev/ioat X-SVN-Commit-Revision: 352787 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 27 Sep 2019 02:09:21 -0000 Author: mav Date: Fri Sep 27 02:09:20 2019 New Revision: 352787 URL: https://svnweb.freebsd.org/changeset/base/352787 Log: Replace argument checks with assertions. Those functions are used by kernel, and we can't check all possible argument errors in production kernel. Plus according to docs many of those errors are checked by hardware. Assertions should just help with code debugging. MFC after: 2 weeks Modified: head/sys/dev/ioat/ioat.c Modified: head/sys/dev/ioat/ioat.c ============================================================================== --- head/sys/dev/ioat/ioat.c Fri Sep 27 00:29:12 2019 (r352786) +++ head/sys/dev/ioat/ioat.c Fri Sep 27 02:09:20 2019 (r352787) @@ -1136,17 +1136,14 @@ ioat_op_generic(struct ioat_softc *ioat, uint8_t op, KASSERT((flags & ~_DMA_GENERIC_FLAGS) == 0, ("Unrecognized flag(s): %#x", flags & ~_DMA_GENERIC_FLAGS)); + KASSERT(size <= ioat->max_xfer_size, ("%s: size too big (%u > %u)", + __func__, (unsigned)size, ioat->max_xfer_size)); + if ((flags & DMA_NO_WAIT) != 0) mflags = M_NOWAIT; else mflags = M_WAITOK; - if (size > ioat->max_xfer_size) { - ioat_log_message(0, "%s: max_xfer_size = %d, requested = %u\n", - __func__, ioat->max_xfer_size, (unsigned)size); - return (NULL); - } - if (ioat_reserve_space(ioat, 1, mflags) != 0) return (NULL); @@ -1226,11 +1223,8 @@ ioat_copy(bus_dmaengine_t dmaengine, bus_addr_t dst, ioat = to_ioat_softc(dmaengine); - if (((src | dst) & (0xffffull << 48)) != 0) { - ioat_log_message(0, "%s: High 16 bits of src/dst invalid\n", - __func__); - return (NULL); - } + KASSERT(((src | dst) & (0xffffull << 48)) == 0, + ("%s: high 16 bits of src/dst are not zero", __func__)); desc = ioat_op_generic(ioat, IOAT_OP_COPY, len, src, dst, callback_fn, callback_arg, flags); @@ -1262,16 +1256,10 @@ ioat_copy_8k_aligned(bus_dmaengine_t dmaengine, bus_ad ioat = to_ioat_softc(dmaengine); CTR2(KTR_IOAT, "%s channel=%u", __func__, ioat->chan_idx); - if (((src1 | src2 | dst1 | dst2) & (0xffffull << 48)) != 0) { - ioat_log_message(0, "%s: High 16 bits of src/dst invalid\n", - __func__); - return (NULL); - } - if (((src1 | src2 | dst1 | dst2) & PAGE_MASK) != 0) { - ioat_log_message(0, "%s: Addresses must be page-aligned\n", - __func__); - return (NULL); - } + KASSERT(((src1 | src2 | dst1 | dst2) & (0xffffull << 48)) == 0, + ("%s: high 16 bits of src/dst are not zero", __func__)); + KASSERT(((src1 | src2 | dst1 | dst2) & PAGE_MASK) == 0, + ("%s: addresses are not page-aligned", __func__)); desc = ioat_op_generic(ioat, IOAT_OP_COPY, 2 * PAGE_SIZE, 0, 0, callback_fn, callback_arg, flags); @@ -1349,26 +1337,15 @@ ioat_copy_crc(bus_dmaengine_t dmaengine, bus_addr_t ds ioat = to_ioat_softc(dmaengine); CTR2(KTR_IOAT, "%s channel=%u", __func__, ioat->chan_idx); - if ((ioat->capabilities & IOAT_DMACAP_MOVECRC) == 0) { - ioat_log_message(0, "%s: Device lacks MOVECRC capability\n", - __func__); - return (NULL); - } - if (((src | dst) & (0xffffffull << 40)) != 0) { - ioat_log_message(0, "%s: High 24 bits of src/dst invalid\n", - __func__); - return (NULL); - } + KASSERT((ioat->capabilities & IOAT_DMACAP_MOVECRC) != 0, + ("%s: device lacks MOVECRC capability", __func__)); + KASSERT(((src | dst) & (0xffffffull << 40)) == 0, + ("%s: high 24 bits of src/dst are not zero", __func__)); teststore = (flags & _DMA_CRC_TESTSTORE); - if (teststore == _DMA_CRC_TESTSTORE) { - ioat_log_message(0, "%s: TEST and STORE invalid\n", __func__); - return (NULL); - } - if (teststore == 0 && (flags & DMA_CRC_INLINE) != 0) { - ioat_log_message(0, "%s: INLINE invalid without TEST or STORE\n", - __func__); - return (NULL); - } + KASSERT(teststore != _DMA_CRC_TESTSTORE, + ("%s: TEST and STORE invalid", __func__)); + KASSERT(teststore != 0 || (flags & DMA_CRC_INLINE) == 0, + ("%s: INLINE invalid without TEST or STORE", __func__)); switch (teststore) { case DMA_CRC_STORE: @@ -1383,12 +1360,9 @@ ioat_copy_crc(bus_dmaengine_t dmaengine, bus_addr_t ds break; } - if ((flags & DMA_CRC_INLINE) == 0 && - (crcptr & (0xffffffull << 40)) != 0) { - ioat_log_message(0, - "%s: High 24 bits of crcptr invalid\n", __func__); - return (NULL); - } + KASSERT((flags & DMA_CRC_INLINE) != 0 || + (crcptr & (0xffffffull << 40)) == 0, + ("%s: high 24 bits of crcptr are not zero", __func__)); desc = ioat_op_generic(ioat, op, len, src, dst, callback_fn, callback_arg, flags & ~_DMA_CRC_FLAGS); @@ -1439,26 +1413,15 @@ ioat_crc(bus_dmaengine_t dmaengine, bus_addr_t src, bu ioat = to_ioat_softc(dmaengine); CTR2(KTR_IOAT, "%s channel=%u", __func__, ioat->chan_idx); - if ((ioat->capabilities & IOAT_DMACAP_CRC) == 0) { - ioat_log_message(0, "%s: Device lacks CRC capability\n", - __func__); - return (NULL); - } - if ((src & (0xffffffull << 40)) != 0) { - ioat_log_message(0, "%s: High 24 bits of src invalid\n", - __func__); - return (NULL); - } + KASSERT((ioat->capabilities & IOAT_DMACAP_CRC) != 0, + ("%s: device lacks CRC capability", __func__)); + KASSERT((src & (0xffffffull << 40)) == 0, + ("%s: high 24 bits of src are not zero", __func__)); teststore = (flags & _DMA_CRC_TESTSTORE); - if (teststore == _DMA_CRC_TESTSTORE) { - ioat_log_message(0, "%s: TEST and STORE invalid\n", __func__); - return (NULL); - } - if (teststore == 0 && (flags & DMA_CRC_INLINE) != 0) { - ioat_log_message(0, "%s: INLINE invalid without TEST or STORE\n", - __func__); - return (NULL); - } + KASSERT(teststore != _DMA_CRC_TESTSTORE, + ("%s: TEST and STORE invalid", __func__)); + KASSERT(teststore != 0 || (flags & DMA_CRC_INLINE) == 0, + ("%s: INLINE invalid without TEST or STORE", __func__)); switch (teststore) { case DMA_CRC_STORE: @@ -1473,12 +1436,9 @@ ioat_crc(bus_dmaengine_t dmaengine, bus_addr_t src, bu break; } - if ((flags & DMA_CRC_INLINE) == 0 && - (crcptr & (0xffffffull << 40)) != 0) { - ioat_log_message(0, - "%s: High 24 bits of crcptr invalid\n", __func__); - return (NULL); - } + KASSERT((flags & DMA_CRC_INLINE) != 0 || + (crcptr & (0xffffffull << 40)) == 0, + ("%s: high 24 bits of crcptr are not zero", __func__)); desc = ioat_op_generic(ioat, op, len, src, 0, callback_fn, callback_arg, flags & ~_DMA_CRC_FLAGS); @@ -1525,18 +1485,11 @@ ioat_blockfill(bus_dmaengine_t dmaengine, bus_addr_t d ioat = to_ioat_softc(dmaengine); CTR2(KTR_IOAT, "%s channel=%u", __func__, ioat->chan_idx); - if ((ioat->capabilities & IOAT_DMACAP_BFILL) == 0) { - ioat_log_message(0, "%s: Device lacks BFILL capability\n", - __func__); - return (NULL); - } + KASSERT((ioat->capabilities & IOAT_DMACAP_BFILL) != 0, + ("%s: device lacks BFILL capability", __func__)); + KASSERT((dst & (0xffffull << 48)) == 0, + ("%s: high 16 bits of crcptr are not zero", __func__)); - if ((dst & (0xffffull << 48)) != 0) { - ioat_log_message(0, "%s: High 16 bits of dst invalid\n", - __func__); - return (NULL); - } - desc = ioat_op_generic(ioat, IOAT_OP_FILL, len, 0, dst, callback_fn, callback_arg, flags); if (desc == NULL) @@ -1693,7 +1646,7 @@ ioat_poll_timer_callback(void *arg) struct ioat_softc *ioat; ioat = arg; - ioat_log_message(3, "%s\n", __func__); + CTR1(KTR_IOAT, "%s", __func__); ioat_process_events(ioat, FALSE);