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path: root/drivers/infiniband/core/sa_query.c
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Diffstat (limited to 'drivers/infiniband/core/sa_query.c')
-rw-r--r--drivers/infiniband/core/sa_query.c173
1 files changed, 162 insertions, 11 deletions
diff --git a/drivers/infiniband/core/sa_query.c b/drivers/infiniband/core/sa_query.c
index 91a660310b7..233eaf541f5 100644
--- a/drivers/infiniband/core/sa_query.c
+++ b/drivers/infiniband/core/sa_query.c
@@ -42,7 +42,7 @@
#include <linux/kref.h>
#include <linux/idr.h>
#include <linux/workqueue.h>
-
+#include <uapi/linux/if_ether.h>
#include <rdma/ib_pack.h>
#include <rdma/ib_cache.h>
#include "sa.h"
@@ -94,6 +94,12 @@ struct ib_sa_path_query {
struct ib_sa_query sa_query;
};
+struct ib_sa_guidinfo_query {
+ void (*callback)(int, struct ib_sa_guidinfo_rec *, void *);
+ void *context;
+ struct ib_sa_query sa_query;
+};
+
struct ib_sa_mcmember_query {
void (*callback)(int, struct ib_sa_mcmember_rec *, void *);
void *context;
@@ -347,6 +353,34 @@ static const struct ib_field service_rec_table[] = {
.size_bits = 2*64 },
};
+#define GUIDINFO_REC_FIELD(field) \
+ .struct_offset_bytes = offsetof(struct ib_sa_guidinfo_rec, field), \
+ .struct_size_bytes = sizeof((struct ib_sa_guidinfo_rec *) 0)->field, \
+ .field_name = "sa_guidinfo_rec:" #field
+
+static const struct ib_field guidinfo_rec_table[] = {
+ { GUIDINFO_REC_FIELD(lid),
+ .offset_words = 0,
+ .offset_bits = 0,
+ .size_bits = 16 },
+ { GUIDINFO_REC_FIELD(block_num),
+ .offset_words = 0,
+ .offset_bits = 16,
+ .size_bits = 8 },
+ { GUIDINFO_REC_FIELD(res1),
+ .offset_words = 0,
+ .offset_bits = 24,
+ .size_bits = 8 },
+ { GUIDINFO_REC_FIELD(res2),
+ .offset_words = 1,
+ .offset_bits = 0,
+ .size_bits = 32 },
+ { GUIDINFO_REC_FIELD(guid_info_list),
+ .offset_words = 2,
+ .offset_bits = 0,
+ .size_bits = 512 },
+};
+
static void free_sm_ah(struct kref *kref)
{
struct ib_sa_sm_ah *sm_ah = container_of(kref, struct ib_sa_sm_ah, ref);
@@ -425,7 +459,7 @@ static void ib_sa_event(struct ib_event_handler *handler, struct ib_event *event
port->sm_ah = NULL;
spin_unlock_irqrestore(&port->ah_lock, flags);
- schedule_work(&sa_dev->port[event->element.port_num -
+ queue_work(ib_wq, &sa_dev->port[event->element.port_num -
sa_dev->start_port].update_task);
}
}
@@ -522,6 +556,13 @@ int ib_init_ah_from_path(struct ib_device *device, u8 port_num,
ah_attr->grh.hop_limit = rec->hop_limit;
ah_attr->grh.traffic_class = rec->traffic_class;
}
+ if (force_grh) {
+ memcpy(ah_attr->dmac, rec->dmac, ETH_ALEN);
+ ah_attr->vlan_id = rec->vlan_id;
+ } else {
+ ah_attr->vlan_id = 0xffff;
+ }
+
return 0;
}
EXPORT_SYMBOL(ib_init_ah_from_path);
@@ -577,19 +618,21 @@ static void init_mad(struct ib_sa_mad *mad, struct ib_mad_agent *agent)
static int send_mad(struct ib_sa_query *query, int timeout_ms, gfp_t gfp_mask)
{
+ bool preload = !!(gfp_mask & __GFP_WAIT);
unsigned long flags;
int ret, id;
-retry:
- if (!idr_pre_get(&query_idr, gfp_mask))
- return -ENOMEM;
+ if (preload)
+ idr_preload(gfp_mask);
spin_lock_irqsave(&idr_lock, flags);
- ret = idr_get_new(&query_idr, query, &id);
+
+ id = idr_alloc(&query_idr, query, 0, 0, GFP_NOWAIT);
+
spin_unlock_irqrestore(&idr_lock, flags);
- if (ret == -EAGAIN)
- goto retry;
- if (ret)
- return ret;
+ if (preload)
+ idr_preload_end();
+ if (id < 0)
+ return id;
query->mad_buf->timeout_ms = timeout_ms;
query->mad_buf->context[0] = query;
@@ -616,6 +659,12 @@ void ib_sa_unpack_path(void *attribute, struct ib_sa_path_rec *rec)
}
EXPORT_SYMBOL(ib_sa_unpack_path);
+void ib_sa_pack_path(struct ib_sa_path_rec *rec, void *attribute)
+{
+ ib_pack(path_rec_table, ARRAY_SIZE(path_rec_table), rec, attribute);
+}
+EXPORT_SYMBOL(ib_sa_pack_path);
+
static void ib_sa_path_rec_callback(struct ib_sa_query *sa_query,
int status,
struct ib_sa_mad *mad)
@@ -628,6 +677,9 @@ static void ib_sa_path_rec_callback(struct ib_sa_query *sa_query,
ib_unpack(path_rec_table, ARRAY_SIZE(path_rec_table),
mad->data, &rec);
+ rec.vlan_id = 0xffff;
+ memset(rec.dmac, 0, ETH_ALEN);
+ memset(rec.smac, 0, ETH_ALEN);
query->callback(status, &rec, query->context);
} else
query->callback(status, NULL, query->context);
@@ -945,6 +997,105 @@ err1:
return ret;
}
+/* Support GuidInfoRecord */
+static void ib_sa_guidinfo_rec_callback(struct ib_sa_query *sa_query,
+ int status,
+ struct ib_sa_mad *mad)
+{
+ struct ib_sa_guidinfo_query *query =
+ container_of(sa_query, struct ib_sa_guidinfo_query, sa_query);
+
+ if (mad) {
+ struct ib_sa_guidinfo_rec rec;
+
+ ib_unpack(guidinfo_rec_table, ARRAY_SIZE(guidinfo_rec_table),
+ mad->data, &rec);
+ query->callback(status, &rec, query->context);
+ } else
+ query->callback(status, NULL, query->context);
+}
+
+static void ib_sa_guidinfo_rec_release(struct ib_sa_query *sa_query)
+{
+ kfree(container_of(sa_query, struct ib_sa_guidinfo_query, sa_query));
+}
+
+int ib_sa_guid_info_rec_query(struct ib_sa_client *client,
+ struct ib_device *device, u8 port_num,
+ struct ib_sa_guidinfo_rec *rec,
+ ib_sa_comp_mask comp_mask, u8 method,
+ int timeout_ms, gfp_t gfp_mask,
+ void (*callback)(int status,
+ struct ib_sa_guidinfo_rec *resp,
+ void *context),
+ void *context,
+ struct ib_sa_query **sa_query)
+{
+ struct ib_sa_guidinfo_query *query;
+ struct ib_sa_device *sa_dev = ib_get_client_data(device, &sa_client);
+ struct ib_sa_port *port;
+ struct ib_mad_agent *agent;
+ struct ib_sa_mad *mad;
+ int ret;
+
+ if (!sa_dev)
+ return -ENODEV;
+
+ if (method != IB_MGMT_METHOD_GET &&
+ method != IB_MGMT_METHOD_SET &&
+ method != IB_SA_METHOD_DELETE) {
+ return -EINVAL;
+ }
+
+ port = &sa_dev->port[port_num - sa_dev->start_port];
+ agent = port->agent;
+
+ query = kmalloc(sizeof *query, gfp_mask);
+ if (!query)
+ return -ENOMEM;
+
+ query->sa_query.port = port;
+ ret = alloc_mad(&query->sa_query, gfp_mask);
+ if (ret)
+ goto err1;
+
+ ib_sa_client_get(client);
+ query->sa_query.client = client;
+ query->callback = callback;
+ query->context = context;
+
+ mad = query->sa_query.mad_buf->mad;
+ init_mad(mad, agent);
+
+ query->sa_query.callback = callback ? ib_sa_guidinfo_rec_callback : NULL;
+ query->sa_query.release = ib_sa_guidinfo_rec_release;
+
+ mad->mad_hdr.method = method;
+ mad->mad_hdr.attr_id = cpu_to_be16(IB_SA_ATTR_GUID_INFO_REC);
+ mad->sa_hdr.comp_mask = comp_mask;
+
+ ib_pack(guidinfo_rec_table, ARRAY_SIZE(guidinfo_rec_table), rec,
+ mad->data);
+
+ *sa_query = &query->sa_query;
+
+ ret = send_mad(&query->sa_query, timeout_ms, gfp_mask);
+ if (ret < 0)
+ goto err2;
+
+ return ret;
+
+err2:
+ *sa_query = NULL;
+ ib_sa_client_put(query->sa_query.client);
+ free_mad(&query->sa_query);
+
+err1:
+ kfree(query);
+ return ret;
+}
+EXPORT_SYMBOL(ib_sa_guid_info_rec_query);
+
static void send_handler(struct ib_mad_agent *agent,
struct ib_mad_send_wc *mad_send_wc)
{
@@ -1079,7 +1230,7 @@ static void ib_sa_remove_one(struct ib_device *device)
ib_unregister_event_handler(&sa_dev->event_handler);
- flush_scheduled_work();
+ flush_workqueue(ib_wq);
for (i = 0; i <= sa_dev->end_port - sa_dev->start_port; ++i) {
if (rdma_port_get_link_layer(device, i + 1) == IB_LINK_LAYER_INFINIBAND) {
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-04 19:35:34 +0000