From: Dr. David Alan Gilbert dgilb...@redhat.com
In a later patch the block name will be used to match up two views
of the block list. Keep a copy of the block name with the local block
list.
(At some point it could be argued that it would be best just to let
migration see the innards of RAMBlock and avoid the need to use
foreach).
Signed-off-by: Dr. David Alan Gilbert dgilb...@redhat.com
Reviewed-by: Michael R. Hines mrhi...@us.ibm.com
---
migration/rdma.c | 35 +--
trace-events | 2 +-
2 files changed, 22 insertions(+), 15 deletions(-)
diff --git a/migration/rdma.c b/migration/rdma.c
index 44ed996..9532461 100644
--- a/migration/rdma.c
+++ b/migration/rdma.c
@@ -214,17 +214,18 @@ static void network_to_caps(RDMACapabilities *cap)
* the information. It's small anyway, so a list is overkill.
*/
typedef struct RDMALocalBlock {
-uint8_t *local_host_addr; /* local virtual address */
-uint64_t remote_host_addr; /* remote virtual address */
-uint64_t offset;
-uint64_t length;
-struct ibv_mr **pmr; /* MRs for chunk-level registration */
-struct ibv_mr *mr; /* MR for non-chunk-level registration */
-uint32_t *remote_keys; /* rkeys for chunk-level registration */
-uint32_t remote_rkey; /* rkeys for non-chunk-level registration */
-int index;/* which block are we */
-bool is_ram_block;
-int nb_chunks;
+char *block_name;
+uint8_t *local_host_addr; /* local virtual address */
+uint64_t remote_host_addr; /* remote virtual address */
+uint64_t offset;
+uint64_t length;
+struct ibv_mr **pmr;/* MRs for chunk-level registration */
+struct ibv_mr *mr; /* MR for non-chunk-level registration */
+uint32_t *remote_keys; /* rkeys for chunk-level registration */
+uint32_t remote_rkey; /* rkeys for non-chunk-level registration
*/
+intindex; /* which block are we */
+bool is_ram_block;
+intnb_chunks;
unsigned long *transit_bitmap;
unsigned long *unregister_bitmap;
} RDMALocalBlock;
@@ -510,7 +511,8 @@ static inline uint8_t *ram_chunk_end(const RDMALocalBlock
*rdma_ram_block,
return result;
}
-static int rdma_add_block(RDMAContext *rdma, void *host_addr,
+static int rdma_add_block(RDMAContext *rdma, const char *block_name,
+ void *host_addr,
ram_addr_t block_offset, uint64_t length)
{
RDMALocalBlocks *local = rdma-local_ram_blocks;
@@ -538,6 +540,7 @@ static int rdma_add_block(RDMAContext *rdma, void
*host_addr,
block = local-block[local-nb_blocks];
+block-block_name = g_strdup(block_name);
block-local_host_addr = host_addr;
block-offset = block_offset;
block-length = length;
@@ -553,7 +556,8 @@ static int rdma_add_block(RDMAContext *rdma, void
*host_addr,
g_hash_table_insert(rdma-blockmap, (void *) block_offset, block);
-trace_rdma_add_block(local-nb_blocks, (uintptr_t) block-local_host_addr,
+trace_rdma_add_block(block_name, local-nb_blocks,
+ (uintptr_t) block-local_host_addr,
block-offset, block-length,
(uintptr_t) (block-local_host_addr + block-length),
BITS_TO_LONGS(block-nb_chunks) *
@@ -573,7 +577,7 @@ static int rdma_add_block(RDMAContext *rdma, void
*host_addr,
static int qemu_rdma_init_one_block(const char *block_name, void *host_addr,
ram_addr_t block_offset, ram_addr_t length, void *opaque)
{
-return rdma_add_block(opaque, host_addr, block_offset, length);
+return rdma_add_block(opaque, block_name, host_addr, block_offset, length);
}
/*
@@ -635,6 +639,9 @@ static int rdma_delete_block(RDMAContext *rdma, ram_addr_t
block_offset)
g_free(block-remote_keys);
block-remote_keys = NULL;
+g_free(block-block_name);
+block-block_name = NULL;
+
for (x = 0; x local-nb_blocks; x++) {
g_hash_table_remove(rdma-blockmap, (void *)(uintptr_t)old[x].offset);
}
diff --git a/trace-events b/trace-events
index 8b468fe..557770c 100644
--- a/trace-events
+++ b/trace-events
@@ -1451,7 +1451,7 @@ qemu_rdma_write_one_recvregres(int mykey, int theirkey,
uint64_t chunk) Receive
qemu_rdma_write_one_sendreg(uint64_t chunk, int len, int index, int64_t
offset) Sending registration request chunk % PRIu64 for %d bytes, index:
%d, offset: % PRId64
qemu_rdma_write_one_top(uint64_t chunks, uint64_t size) Writing % PRIu64
chunks, (% PRIu64 MB)
qemu_rdma_write_one_zero(uint64_t chunk, int len, int index, int64_t offset)
Entire chunk is zero, sending compress: % PRIu64 for %d bytes, index: %d,
offset: % PRId64
-rdma_add_block(int block, uint64_t addr, uint64_t offset, uint64_t len,
uint64_t end, uint64_t bits, int chunks) Added Block: %d, addr: % PRIu64 ,
