From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:59163) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1elIWv-0008Fq-Sb for qemu-devel@nongnu.org; Mon, 12 Feb 2018 13:08:44 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1elIWu-0002Z5-A5 for qemu-devel@nongnu.org; Mon, 12 Feb 2018 13:08:41 -0500 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:35628 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1elIWu-0002Yb-4t for qemu-devel@nongnu.org; Mon, 12 Feb 2018 13:08:40 -0500 From: Marcel Apfelbaum Date: Mon, 12 Feb 2018 20:08:14 +0200 Message-Id: <20180212180819.82556-5-marcel@redhat.com> In-Reply-To: <20180212180819.82556-1-marcel@redhat.com> References: <20180212180819.82556-1-marcel@redhat.com> Subject: [Qemu-devel] [PATCH V10 4/9] hw/rdma: Add wrappers and macros List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: peter.maydell@linaro.org, ehabkost@redhat.com, yuval.shaia@oracle.com, marcel@redhat.com, mst@redhat.com, dotanb@mellanox.com, yanjun.zhu@oracle.com From: Yuval Shaia As all mapping for this device are from driver to device, declare wrappers on top of pci_dma_*map functions. In addition, declare macros to be used for debug messages. Reviewed-by: Dotan Barak Signed-off-by: Yuval Shaia Signed-off-by: Marcel Apfelbaum --- hw/Makefile.objs | 1 + hw/rdma/Makefile.objs | 3 +++ hw/rdma/rdma_utils.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++ hw/rdma/rdma_utils.h | 43 +++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 98 insertions(+) create mode 100644 hw/rdma/Makefile.objs create mode 100644 hw/rdma/rdma_utils.c create mode 100644 hw/rdma/rdma_utils.h diff --git a/hw/Makefile.objs b/hw/Makefile.objs index cf4cb2010b..6a0ffe0afd 100644 --- a/hw/Makefile.objs +++ b/hw/Makefile.objs @@ -18,6 +18,7 @@ devices-dirs-$(CONFIG_IPMI) += ipmi/ devices-dirs-$(CONFIG_SOFTMMU) += isa/ devices-dirs-$(CONFIG_SOFTMMU) += misc/ devices-dirs-$(CONFIG_SOFTMMU) += net/ +devices-dirs-$(CONFIG_SOFTMMU) += rdma/ devices-dirs-$(CONFIG_SOFTMMU) += nvram/ devices-dirs-$(CONFIG_SOFTMMU) += pci/ devices-dirs-$(CONFIG_PCI) += pci-bridge/ pci-host/ diff --git a/hw/rdma/Makefile.objs b/hw/rdma/Makefile.objs new file mode 100644 index 0000000000..cdffe4a9a3 --- /dev/null +++ b/hw/rdma/Makefile.objs @@ -0,0 +1,3 @@ +ifeq ($(CONFIG_RDMA),y) +obj-$(CONFIG_PCI) += rdma_utils.o +endif diff --git a/hw/rdma/rdma_utils.c b/hw/rdma/rdma_utils.c new file mode 100644 index 0000000000..0e5caffd40 --- /dev/null +++ b/hw/rdma/rdma_utils.c @@ -0,0 +1,51 @@ +/* + * QEMU paravirtual RDMA - Generic RDMA backend + * + * Copyright (C) 2018 Oracle + * Copyright (C) 2018 Red Hat Inc + * + * Authors: + * Yuval Shaia + * Marcel Apfelbaum + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + * + */ + +#include "rdma_utils.h" + +void *rdma_pci_dma_map(PCIDevice *dev, dma_addr_t addr, dma_addr_t plen) +{ + void *p; + hwaddr len = plen; + + if (!addr) { + pr_dbg("addr is NULL\n"); + return NULL; + } + + p = pci_dma_map(dev, addr, &len, DMA_DIRECTION_TO_DEVICE); + if (!p) { + pr_dbg("Fail in pci_dma_map, addr=0x%llx, len=%ld\n", + (long long unsigned int)addr, len); + return NULL; + } + + if (len != plen) { + rdma_pci_dma_unmap(dev, p, len); + return NULL; + } + + pr_dbg("0x%llx -> %p (len=%ld)\n", (long long unsigned int)addr, p, len); + + return p; +} + +void rdma_pci_dma_unmap(PCIDevice *dev, void *buffer, dma_addr_t len) +{ + pr_dbg("%p\n", buffer); + if (buffer) { + pci_dma_unmap(dev, buffer, len, DMA_DIRECTION_TO_DEVICE, 0); + } +} diff --git a/hw/rdma/rdma_utils.h b/hw/rdma/rdma_utils.h new file mode 100644 index 0000000000..cdac910e24 --- /dev/null +++ b/hw/rdma/rdma_utils.h @@ -0,0 +1,43 @@ +/* + * RDMA device: Debug utilities + * + * Copyright (C) 2018 Oracle + * Copyright (C) 2018 Red Hat Inc + * + * + * Authors: + * Yuval Shaia + * Marcel Apfelbaum + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + * + */ + +#ifndef RDMA_UTILS_H +#define RDMA_UTILS_H + +#include +#include +#include + +#define pr_info(fmt, ...) \ + fprintf(stdout, "%s: %-20s (%3d): " fmt, "pvrdma", __func__, __LINE__,\ + ## __VA_ARGS__) + +#define pr_err(fmt, ...) \ + fprintf(stderr, "%s: Error at %-20s (%3d): " fmt, "pvrdma", __func__, \ + __LINE__, ## __VA_ARGS__) + +#ifdef PVRDMA_DEBUG +#define pr_dbg(fmt, ...) \ + fprintf(stdout, "%s: %-20s (%3d): " fmt, "pvrdma", __func__, __LINE__,\ + ## __VA_ARGS__) +#else +#define pr_dbg(fmt, ...) +#endif + +void *rdma_pci_dma_map(PCIDevice *dev, dma_addr_t addr, dma_addr_t plen); +void rdma_pci_dma_unmap(PCIDevice *dev, void *buffer, dma_addr_t len); + +#endif -- 2.13.5