On Mon, Jul 10, 2017 at 10:01:02AM +0200, Jiri Pirko wrote:
> Tue, Jul 04, 2017 at 09:55:39AM CEST, leon@xxxxxxxxxx wrote:
> >From: Leon Romanovsky <leonro@xxxxxxxxxxxx>
> >
> >Device (dev) object represents struct ib_device to the user space.
> >
> >Device properties:
> > * Device capabilities
> > * FW version to the device output
> > * node_guid and sys_image_guid
> > * node_type
> >
> >Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxxxx>
> >---
> > rdma/Makefile | 2 +-
> > rdma/dev.c | 235 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> > rdma/rdma.c | 3 +-
> > rdma/rdma.h | 12 ++-
> > rdma/utils.c | 46 +++++++++++-
> > 5 files changed, 293 insertions(+), 5 deletions(-)
> > create mode 100644 rdma/dev.c
> >
> >diff --git a/rdma/Makefile b/rdma/Makefile
> >index 64da2142..123d7ac5 100644
> >--- a/rdma/Makefile
> >+++ b/rdma/Makefile
> >@@ -2,7 +2,7 @@ include ../Config
> >
> > ifeq ($(HAVE_MNL),y)
> >
> >-RDMA_OBJ = rdma.o utils.o
> >+RDMA_OBJ = rdma.o utils.o dev.o
> >
> > TARGETS=rdma
> > CFLAGS += $(shell $(PKG_CONFIG) libmnl --cflags)
> >diff --git a/rdma/dev.c b/rdma/dev.c
> >new file mode 100644
> >index 00000000..b80e5288
> >--- /dev/null
> >+++ b/rdma/dev.c
> >@@ -0,0 +1,235 @@
> >+/*
> >+ * dev.c RDMA tool
> >+ *
> >+ * This program is free software; you can redistribute it and/or
> >+ * modify it under the terms of the GNU General Public License
> >+ * as published by the Free Software Foundation; either version
> >+ * 2 of the License, or (at your option) any later version.
> >+ *
> >+ * Authors: Leon Romanovsky <leonro@xxxxxxxxxxxx>
> >+ */
> >+
> >+#include "rdma.h"
> >+
> >+static int dev_help(struct rdma *rd)
> >+{
> >+ pr_out("Usage: %s dev show [DEV]\n", rd->filename);
> >+ return 0;
> >+}
> >+
> >+static void dev_print_caps(struct nlattr **tb)
> >+{
> >+ uint64_t caps;
> >+ uint32_t idx;
> >+
> >+ /*
> >+ * FIXME: move to indexes when kernel will start exporting them.
> >+ */
> >+ static const char *dev_caps[64] = {
>
> static const char *dev_caps[] = {
The same as for the "link" object.
>
>
> >+ "RESIZE_MAX_WR",
> >+ "BAD_PKEY_CNTR",
> >+ "BAD_QKEY_CNTR",
> >+ "RAW_MULTI",
> >+ "AUTO_PATH_MIG",
> >+ "CHANGE_PHY_PORT",
> >+ "UD_AV_PORT_ENFORCE",
> >+ "CURR_QP_STATE_MOD",
> >+ "SHUTDOWN_PORT",
> >+ "INIT_TYPE",
> >+ "PORT_ACTIVE_EVENT",
> >+ "SYS_IMAGE_GUID",
> >+ "RC_RNR_NAK_GEN",
> >+ "SRQ_RESIZE",
> >+ "N_NOTIFY_CQ",
> >+ "LOCAL_DMA_LKEY",
> >+ "RESERVED",
> >+ "MEM_WINDOW",
> >+ "UD_IP_CSUM",
> >+ "UD_TSO",
> >+ "XRC",
> >+ "MEM_MGT_EXTENSIONS",
> >+ "BLOCK_MULTICAST_LOOPBACK",
> >+ "MEM_WINDOW_TYPE_2A",
> >+ "MEM_WINDOW_TYPE_2B",
> >+ "RC_IP_CSUM",
> >+ "RAW_IP_CSUM",
> >+ "CROSS_CHANNEL",
> >+ "MANAGED_FLOW_STEERING",
> >+ "SIGNATURE_HANDOVER",
> >+ "ON_DEMAND_PAGING",
> >+ "SG_GAPS_REG",
> >+ "VIRTUAL_FUNCTION",
> >+ "RAW_SCATTER_FCS",
> >+ "RDMA_NETDEV_OPA_VNIC",
> >+ };
> >+
<...>
> >+ if (!tb[RDMA_NLDEV_ATTR_FW_VERSION])
> >+ return;
> >+
> >+ pr_out("fw %s ",
> >+ mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_FW_VERSION]));
> >+}
> >+
> >+static void _dev_print_be64(char *name, uint64_t val)
>
> Why the initial "_"? I think it could be avoided.
>
> Wait, I'm confused. Does kernel actually exposes BE64 in U64 attribute?
> That is wrong. Please fix it while there is still a time (if it is).
It was, I fixed it in the last version of my RDMA netlink patches as a
response to Jason's comment.
The "_be64" suffix in the name is a leftover from dark ages. I'll fix it.
>
>
> >+{
> >+ uint16_t vp[4];
> >+
> >+ memcpy(vp, &val, sizeof(uint64_t));
> >+ pr_out("%s %04x:%04x:%04x:%04x ", name, vp[3], vp[2], vp[1], vp[0]);
> >+}
> >+
<...>
>
>
> >+ }
> >+ else {
>
> "} else {"
>
> Checkpatch should warn you. Did you run it?
>
Partially.
Thanks
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