To make code more readable move handling of protected list to a
rdma_utils
Signed-off-by: Yuval Shaia <address@hidden>
---
hw/rdma/rdma_backend.c | 20 +++++--------------
hw/rdma/rdma_backend_defs.h | 8 ++------
hw/rdma/rdma_utils.c | 39 +++++++++++++++++++++++++++++++++++++
hw/rdma/rdma_utils.h | 9 +++++++++
4 files changed, 55 insertions(+), 21 deletions(-)
diff --git a/hw/rdma/rdma_backend.c b/hw/rdma/rdma_backend.c
index 5f60856d19..6e9c4617da 100644
--- a/hw/rdma/rdma_backend.c
+++ b/hw/rdma/rdma_backend.c
@@ -527,9 +527,7 @@ static unsigned int save_mad_recv_buffer(RdmaBackendDev
*backend_dev,
bctx->up_ctx = ctx;
bctx->sge = *sge;
- qemu_mutex_lock(&backend_dev->recv_mads_list.lock);
- qlist_append_int(backend_dev->recv_mads_list.list, bctx_id);
- qemu_mutex_unlock(&backend_dev->recv_mads_list.lock);
+ rdma_protected_qlist_append_int64(&backend_dev->recv_mads_list, bctx_id);
return 0;
}
@@ -913,23 +911,19 @@ static inline void build_mad_hdr(struct ibv_grh *grh,
union ibv_gid *sgid,
static void process_incoming_mad_req(RdmaBackendDev *backend_dev,
RdmaCmMuxMsg *msg)
{
- QObject *o_ctx_id;
unsigned long cqe_ctx_id;
BackendCtx *bctx;
char *mad;
trace_mad_message("recv", msg->umad.mad, msg->umad_len);
- qemu_mutex_lock(&backend_dev->recv_mads_list.lock);
- o_ctx_id = qlist_pop(backend_dev->recv_mads_list.list);
- qemu_mutex_unlock(&backend_dev->recv_mads_list.lock);
- if (!o_ctx_id) {
+ cqe_ctx_id = rdma_protected_qlist_pop_int64(&backend_dev->recv_mads_list);
+ if (cqe_ctx_id == -ENOENT) {
rdma_warn_report("No more free MADs buffers, waiting for a while");
sleep(THR_POLL_TO);
return;
}
- cqe_ctx_id = qnum_get_uint(qobject_to(QNum, o_ctx_id));
bctx = rdma_rm_get_cqe_ctx(backend_dev->rdma_dev_res, cqe_ctx_id);
if (unlikely(!bctx)) {
rdma_error_report("No matching ctx for req %ld", cqe_ctx_id);
@@ -994,8 +988,7 @@ static int mad_init(RdmaBackendDev *backend_dev,
CharBackend *mad_chr_be)
return -EIO;
}
- qemu_mutex_init(&backend_dev->recv_mads_list.lock);
- backend_dev->recv_mads_list.list = qlist_new();
+ rdma_protected_qlist_init(&backend_dev->recv_mads_list);
enable_rdmacm_mux_async(backend_dev);
@@ -1010,10 +1003,7 @@ static void mad_fini(RdmaBackendDev *backend_dev)
{
disable_rdmacm_mux_async(backend_dev);
qemu_chr_fe_disconnect(backend_dev->rdmacm_mux.chr_be);
- if (backend_dev->recv_mads_list.list) {
- qlist_destroy_obj(QOBJECT(backend_dev->recv_mads_list.list));
- qemu_mutex_destroy(&backend_dev->recv_mads_list.lock);
- }
+ rdma_protected_qlist_destroy(&backend_dev->recv_mads_list);
}
int rdma_backend_get_gid_index(RdmaBackendDev *backend_dev,
diff --git a/hw/rdma/rdma_backend_defs.h b/hw/rdma/rdma_backend_defs.h
index 15ae8b970e..a8c15b09ab 100644
--- a/hw/rdma/rdma_backend_defs.h
+++ b/hw/rdma/rdma_backend_defs.h
@@ -20,6 +20,7 @@
#include "chardev/char-fe.h"
#include <infiniband/verbs.h>
#include "contrib/rdmacm-mux/rdmacm-mux.h"
+#include "rdma_utils.h"
typedef struct RdmaDeviceResources RdmaDeviceResources;
@@ -30,11 +31,6 @@ typedef struct RdmaBackendThread {
bool is_running; /* Set by the thread to report its status */
} RdmaBackendThread;
-typedef struct RecvMadList {
- QemuMutex lock;
- QList *list;
-} RecvMadList;
-
typedef struct RdmaCmMux {
CharBackend *chr_be;
int can_receive;
@@ -48,7 +44,7 @@ typedef struct RdmaBackendDev {
struct ibv_context *context;
struct ibv_comp_channel *channel;
uint8_t port_num;
- RecvMadList recv_mads_list;
+ RdmaProtectedQList recv_mads_list;
RdmaCmMux rdmacm_mux;
} RdmaBackendDev;
diff --git a/hw/rdma/rdma_utils.c b/hw/rdma/rdma_utils.c
index f1c980c6be..672a09079a 100644
--- a/hw/rdma/rdma_utils.c
+++ b/hw/rdma/rdma_utils.c
@@ -14,6 +14,8 @@
*/
#include "qemu/osdep.h"
+#include "qapi/qmp/qlist.h"
+#include "qapi/qmp/qnum.h"
#include "trace.h"
#include "rdma_utils.h"
@@ -55,3 +57,40 @@ void rdma_pci_dma_unmap(PCIDevice *dev, void *buffer, dma_addr_t len)
pci_dma_unmap(dev, buffer, len, DMA_DIRECTION_TO_DEVICE, 0);
}
}
+
+void rdma_protected_qlist_init(RdmaProtectedQList *list)
+{
+ qemu_mutex_init(&list->lock);
+ list->list = qlist_new();
+}
+
+void rdma_protected_qlist_destroy(RdmaProtectedQList *list)
+{
+ if (list->list) {
+ qlist_destroy_obj(QOBJECT(list->list));
+ qemu_mutex_destroy(&list->lock);
+ list->list = NULL;
+ }
+}
+
+void rdma_protected_qlist_append_int64(RdmaProtectedQList *list, int64_t value)
+{
+ qemu_mutex_lock(&list->lock);
+ qlist_append_int(list->list, value);
+ qemu_mutex_unlock(&list->lock);
+}
+
+int64_t rdma_protected_qlist_pop_int64(RdmaProtectedQList *list)
+{
+ QObject *obj;
+
+ qemu_mutex_lock(&list->lock);
+ obj = qlist_pop(list->list);
+ qemu_mutex_unlock(&list->lock);
+
+ if (!obj) {
+ return -ENOENT;
+ }
+
+ return qnum_get_uint(qobject_to(QNum, obj));
+}
diff --git a/hw/rdma/rdma_utils.h b/hw/rdma/rdma_utils.h
index acd148837f..a8bf1d4fec 100644
--- a/hw/rdma/rdma_utils.h
+++ b/hw/rdma/rdma_utils.h
@@ -29,8 +29,17 @@
#define rdma_info_report(fmt, ...) \
info_report("%s: " fmt, "rdma", ## __VA_ARGS__)
+typedef struct RdmaProtectedQList {
+ QemuMutex lock;
+ QList *list;
+} RdmaProtectedQList;
+
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);
+void rdma_protected_qlist_init(RdmaProtectedQList *list);
+void rdma_protected_qlist_destroy(RdmaProtectedQList *list);
+void rdma_protected_qlist_append_int64(RdmaProtectedQList *list, int64_t
value);
+int64_t rdma_protected_qlist_pop_int64(RdmaProtectedQList *list);
static inline void addrconf_addr_eui48(uint8_t *eui, const char *addr)
{