[RFC iproute2 8/8] rdma: Add link capability parsing

Leon Romanovsky
2017-05-04T18:02:16Z

From: Leon Romanovsky <leonro-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>

Add parsing interface for the cap_mask

$./rdma/rdma link show mlx5_2/2 cap_mask
3/2: mlx5_2/2: sm off notice off trap on opt_ipd off auto_migr off sl_map on mkey_nvram off
pkey_nvram off led_info off sm_disabled off sys_image_guid on pkey_sw_ext_port_trap off
extended_speeds on cm on snmp_tunnel off reinit off device_mgmt off vendor_class on dr_notice off
cap_mask_notice on boot_mgmt off link_latency off client_reg on ip_based_gids on

Signed-off-by: Leon Romanovsky <leonro-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
---
rdma/link.c | 74 +++++++++++++++++++++++++++++++++++++++++++++++++-----------
rdma/rdma.h | 4 ++++
rdma/utils.c | 4 ++--
3 files changed, 67 insertions(+), 15 deletions(-)

diff --git a/rdma/link.c b/rdma/link.c
index e86ff399..e9880914 100644
--- a/rdma/link.c
+++ b/rdma/link.c
@@ -14,13 +14,48 @@
static int link_help(struct rdma *rd)
{
pr_out("Usage: %s link show [ DEV | DEV/PORT ]\n", rd->filename);
+ pr_out(" %s link show [ DEV | DEV/PORT ] cap_mask\n", rd->filename);
pr_out(" %s link set DEV/PORT { type { eth | ib | auto } |\n", rd->filename);
pr_out(" lb_unicast { on | off } |\n");
pr_out(" lb_multicast { on | off } }\n");
return 0;
}

-static void dev_one_show(const struct dev_map *dev_map, uint32_t port_idx_first, uint32_t port_idx_last)
+static void print_cap_mask(uint32_t cap_mask)
+{
+#define PRINT_PORT_CAP(name, val, offset) (printf(" %s %s", name, (((val) >> (offset))&0x1)?"on":"off"))
+
+ /* Naive copy/paste from include/rdma/ib_verbs.h */
+ PRINT_PORT_CAP("sm", cap_mask, 1);
+ PRINT_PORT_CAP("notice", cap_mask, 2);
+ PRINT_PORT_CAP("trap", cap_mask, 3);
+ PRINT_PORT_CAP("opt_ipd", cap_mask, 4);
+ PRINT_PORT_CAP("auto_migr", cap_mask, 5);
+ PRINT_PORT_CAP("sl_map", cap_mask, 6);
+ PRINT_PORT_CAP("mkey_nvram", cap_mask, 7);
+ printf("\n\t");
+ PRINT_PORT_CAP("pkey_nvram", cap_mask, 8);
+ PRINT_PORT_CAP("led_info", cap_mask, 9);
+ PRINT_PORT_CAP("sm_disabled", cap_mask, 10);
+ PRINT_PORT_CAP("sys_image_guid", cap_mask, 11);
+ PRINT_PORT_CAP("pkey_sw_ext_port_trap", cap_mask, 12);
+ printf("\n\t");
+ PRINT_PORT_CAP("extended_speeds", cap_mask, 14);
+ PRINT_PORT_CAP("cm", cap_mask, 16);
+ PRINT_PORT_CAP("snmp_tunnel", cap_mask, 17);
+ PRINT_PORT_CAP("reinit", cap_mask, 18);
+ PRINT_PORT_CAP("device_mgmt", cap_mask, 19);
+ PRINT_PORT_CAP("vendor_class", cap_mask, 20);
+ PRINT_PORT_CAP("dr_notice", cap_mask, 21);
+ printf("\n\t");
+ PRINT_PORT_CAP("cap_mask_notice", cap_mask, 22);
+ PRINT_PORT_CAP("boot_mgmt", cap_mask, 23);
+ PRINT_PORT_CAP("link_latency", cap_mask, 24);
+ PRINT_PORT_CAP("client_reg", cap_mask, 25);
+ PRINT_PORT_CAP("ip_based_gids", cap_mask, 26);
+}
+static void dev_one_show(struct rdma *rd, const struct dev_map *dev_map,
+ uint32_t port_idx_first, uint32_t port_idx_last)
{
char *nodes[] = { "cap_mask",
"lid",
@@ -35,23 +70,36 @@ static void dev_one_show(const struct dev_map *dev_map, uint32_t port_idx_first,

struct port_map *port_map;
char data[4096];
+ uint32_t cap_mask;
+ bool cap_mask_r = false;
int i, j;

+ rd_arg_inc(rd);
+ if (rd_argv_match(rd, "cap_mask"))
+ cap_mask_r = true;
+
for(j = port_idx_first ; j <= port_idx_last; j++) {
pr_out("%u/%u: %s/%u:", dev_map->idx, j, dev_map->dev_name, j);
- list_for_each_entry(port_map, &dev_map->port_map_list, list)
- if (j == port_map->idx)
- printf(" ifname %s", (port_map->ifname)?:"NONE");
+ if (cap_mask_r) {
+ rdma_sysfs_read_ib(dev_map->dev_name, 1, nodes[0], data);
+ cap_mask = strtoul(data, NULL, 16);
+ print_cap_mask(cap_mask);
+ }
+ else {
+ list_for_each_entry(port_map, &dev_map->port_map_list, list)
+ if (j == port_map->idx)
+ printf(" ifname %s", (port_map->ifname)?:"NONE");

- for (i = 0 ; nodes[i] ; i++) {
- if (rdma_sysfs_read_ib(dev_map->dev_name, j, nodes[i], data))
- continue;
+ for (i = 0 ; nodes[i] ; i++) {
+ if (rdma_sysfs_read_ib(dev_map->dev_name, j, nodes[i], data))
+ continue;

- /* Split line before "phys_state" */
- if (!strcmp(nodes[i], "phys_state"))
- printf("\n\t");
+ /* Split line before "phys_state" */
+ if (!strcmp(nodes[i], "phys_state"))
+ printf("\n\t");

- pr_out(" %s %s", nodes[i], data);
+ pr_out(" %s %s", nodes[i], data);
+ }
}
pr_out("\n");
}
@@ -63,7 +111,7 @@ static int link_show(struct rdma *rd)

if (rd_no_arg(rd)) {
list_for_each_entry(dev_map, &rd->dev_map_list, list)
- dev_one_show(dev_map, 1, dev_map->num_ports);
+ dev_one_show(rd, dev_map, 1, dev_map->num_ports);
}
else {
uint32_t port_idx;
@@ -81,7 +129,7 @@ static int link_show(struct rdma *rd)
num_ports = dev_map->num_ports;
}

- dev_one_show(dev_map, port_idx, num_ports);
+ dev_one_show(rd, dev_map, port_idx, num_ports);
}
return 0;
}
diff --git a/rdma/rdma.h b/rdma/rdma.h
index 11d940d7..12c87048 100644
--- a/rdma/rdma.h
+++ b/rdma/rdma.h
@@ -76,6 +76,10 @@ int obj_monitor(struct rdma *rd);
*/
bool rd_no_arg(struct rdma *rd);
uint32_t get_port_from_argv(struct rdma *rd);
+bool rd_no_arg(struct rdma *rd);
+bool rd_argv_match(struct rdma *rd, const char *pattern);
+void rd_arg_inc(struct rdma *rd);
+uint32_t get_port_from_argv(struct rdma *rd);

int rdma_exec_cmd(struct rdma *rd, const struct rdma_obj *o, const char *str);
int rdma_sysfs_read_ib(const char *name, int port, const char *field, char *res);
diff --git a/rdma/utils.c b/rdma/utils.c
index 568d7c0a..fd5fe77f 100644
--- a/rdma/utils.c
+++ b/rdma/utils.c
@@ -40,14 +40,14 @@ static int strcmpx(const char *str1, const char *str2)
return strncmp(str1, str2, strlen(str1));
}

-static bool rd_argv_match(struct rdma *rd, const char *pattern)
+bool rd_argv_match(struct rdma *rd, const char *pattern)
{
if (!rd_argc(rd))
return false;
return strcmpx(rd_argv(rd), pattern) == 0;
}

-static void rd_arg_inc(struct rdma *rd)
+void rd_arg_inc(struct rdma *rd)
{
if (!rd_argc(rd))
return;
--
2.12.2

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