From: Bodong Wang <bodong@xxxxxxxxxxxx>
The capabilities include two parts:
1. The minimum (qp_rate_limit_min) and maximum(qp_rate_limit_max)
rate limit in kbps.
2. QP types supported by the device (supported_qpts).
Signed-off-by: Bodong Wang <bodong@xxxxxxxxxxxx>
Reviewed-by: Yishai Hadas <yishaih@xxxxxxxxxxxx>
---
libibverbs/examples/devinfo.c | 21 +++++++++++++++++++++
libibverbs/man/ibv_query_device_ex.3 | 7 +++++++
libibverbs/verbs.h | 7 +++++++
3 files changed, 35 insertions(+)
diff --git a/libibverbs/examples/devinfo.c b/libibverbs/examples/devinfo.c
index 78e92b9..54976bb 100644
--- a/libibverbs/examples/devinfo.c
+++ b/libibverbs/examples/devinfo.c
@@ -384,6 +384,26 @@ static void print_rss_caps(const struct ibv_rss_caps *caps)
}
}
+static void print_packet_pacing_caps(const struct ibv_packet_pacing_caps *caps)
+{
+ uint32_t unknown_general_caps = ~(1 << IBV_QPT_RAW_PACKET |
+ 1 << IBV_QPT_UD);
+ printf("\tpacket_pacing_caps:\n");
+ printf("\t\tqp_rate_limit_min:\t%ukbps\n", caps->qp_rate_limit_min);
+ printf("\t\tqp_rate_limit_max:\t%ukbps\n", caps->qp_rate_limit_max);
+
+ if (caps->qp_rate_limit_max) {
+ printf("\t\tsupported_qp:\n");
+ if (ibv_is_qpt_supported(caps->supported_qpts, IBV_QPT_RAW_PACKET))
+ printf("\t\t\t\t\tSUPPORT_RAW_PACKET\n");
+ if (ibv_is_qpt_supported(caps->supported_qpts, IBV_QPT_UD))
+ printf("\t\t\t\t\tSUPPORT_UD\n");
+ if (caps->supported_qpts & unknown_general_caps)
+ printf("\t\t\t\t\tUnknown flags: 0x%" PRIX32 "\n",
+ caps->supported_qpts & unknown_general_caps);
+ }
+}
+
static int print_hca_cap(struct ibv_device *ib_dev, uint8_t ib_port)
{
struct ibv_context *ctx;
@@ -487,6 +507,7 @@ static int print_hca_cap(struct ibv_device *ib_dev, uint8_t ib_port)
print_tso_caps(&device_attr.tso_caps);
print_rss_caps(&device_attr.rss_caps);
printf("\tmax_wq_type_rq:\t\t\t%u\n", device_attr.max_wq_type_rq);
+ print_packet_pacing_caps(&device_attr.packet_pacing_caps);
}
for (port = 1; port <= device_attr.orig_attr.phys_port_cnt; ++port) {
diff --git a/libibverbs/man/ibv_query_device_ex.3 b/libibverbs/man/ibv_query_device_ex.3
index 4da63a0..c291017 100644
--- a/libibverbs/man/ibv_query_device_ex.3
+++ b/libibverbs/man/ibv_query_device_ex.3
@@ -31,6 +31,7 @@ uint64_t device_cap_flags_ex; /* Extended device capability
struct ibv_tso_caps tso_caps; /* TCP segmentation offload capabilities */
struct ibv_rss_caps rss_caps; /* RSS capabilities */
uint32_t max_wq_type_rq; /* Max Work Queue from type RQ */
+struct ibv_packet_pacing_caps packet_pacing_caps; /* Packet pacing capabilities */
.in -8
};
@@ -68,6 +69,12 @@ struct ibv_rss_caps {
uint8_t rx_hash_function; /* Mask with enum ibv_rx_hash_function_flags to know which hash functions are supported */
};
+struct ibv_packet_pacing_caps {
+ uint32_t qp_rate_limit_min; /* Minimum rate limit in kbps */
+ uint32_t qp_rate_limit_max; /* Maximum rate limit in kbps */
+ uint32_t supported_qpts; /* Bitmap showing which QP types are supported. */
+};
+
.fi
.SH "RETURN VALUE"
.B ibv_query_device_ex()
diff --git a/libibverbs/verbs.h b/libibverbs/verbs.h
index 29f287b..6606196 100644
--- a/libibverbs/verbs.h
+++ b/libibverbs/verbs.h
@@ -246,6 +246,12 @@ struct ibv_rss_caps {
uint8_t rx_hash_function; /* enum ibv_rx_hash_function_flags */
};
+struct ibv_packet_pacing_caps {
+ uint32_t qp_rate_limit_min;
+ uint32_t qp_rate_limit_max; /* In kbps */
+ uint32_t supported_qpts;
+};
+
struct ibv_device_attr_ex {
struct ibv_device_attr orig_attr;
uint32_t comp_mask;
@@ -256,6 +262,7 @@ struct ibv_device_attr_ex {
struct ibv_tso_caps tso_caps;
struct ibv_rss_caps rss_caps;
uint32_t max_wq_type_rq;
+ struct ibv_packet_pacing_caps packet_pacing_caps;
};
enum ibv_mtu {
--
1.8.3.1
--
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