search for: send_cach

Displaying 6 results from an estimated 6 matches for "send_cach".

Did you mean: send_cache
2019 May 10
0
[nbdkit PATCH 1/9] server: Internal hooks for implementing NBD_CMD_CACHE
...4 --- a/common/protocol/protocol.h +++ b/common/protocol/protocol.h @@ -95,6 +95,7 @@ extern const char *name_of_nbd_flag (int); #define NBD_FLAG_SEND_WRITE_ZEROES (1 << 6) #define NBD_FLAG_SEND_DF (1 << 7) #define NBD_FLAG_CAN_MULTI_CONN (1 << 8) +#define NBD_FLAG_SEND_CACHE (1 << 10) /* NBD options (new style handshake only). */ extern const char *name_of_nbd_opt (int); @@ -217,6 +218,7 @@ extern const char *name_of_nbd_cmd (int); #define NBD_CMD_DISC 2 /* Disconnect. */ #define NBD_CMD_FLUSH 3 #define NBD_CMD_TRIM...
2019 May 10
11
[nbdkit PATCH 0/9] RFC: implement NBD_CMD_CACHE
I'm still working my way through the filters before this series will be complete, but this is enough of a start to at least get some feedback on the idea of implementing another NBD protocol extension. Eric Blake (9): server: Internal hooks for implementing NBD_CMD_CACHE plugins: Add .cache callback file, split: Implement .cache with posix_fadvise nbd: Implement NBD_CMD_CACHE
2019 May 16
0
[nbdkit PATCH v2 24/24] nocache: Implement new filter
...achemode '%s'", value); + return -1; + } + return 0; + } + return next (nxdata, key, value); +} + +#define nocache_config_help \ + "cachemode=<MODE> Either 'none' (default), 'emulate', or 'nop'.\n" \ + +/* Advertise desired FLAG_SEND_CACHE mode. */ +static int +nocache_can_cache (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + switch (cachemode) { + case NONE: + return NBDKIT_CACHE_NONE; + case EMULATE: + return NBDKIT_CACHE_EMULATE; + case NOP: + return NBDKIT_CACHE_NATIVE; + } +...
2019 May 16
27
[nbdkit PATCH v2 00/24] implement NBD_CMD_CACHE
Since v1: - rework .can_cache to be tri-state, with default of no advertisement (ripple effect through other patches) - add a lot more patches in order to round out filter support And in the meantime, Rich pushed NBD_CMD_CACHE support into libnbd, so in theory we now have a way to test cache commands through the entire stack. Eric Blake (24): server: Internal hooks for implementing
2019 Aug 23
2
[nbdkit PATCH 3/3] plugins: Add .can_fast_zero hook
...} } } diff --git a/tests/test-eflags.sh b/tests/test-eflags.sh index f5cd43ed..9b3a6a3a 100755 --- a/tests/test-eflags.sh +++ b/tests/test-eflags.sh @@ -68,6 +68,7 @@ SEND_DF=$(( 1 << 7 )) CAN_MULTI_CONN=$(( 1 << 8 )) SEND_RESIZE=$(( 1 << 9 )) SEND_CACHE=$(( 1 << 10 )) +SEND_FAST_ZERO=$(( 1 << 11 )) do_nbdkit () { @@ -133,8 +134,8 @@ EOF #---------------------------------------------------------------------- # can_write=true # -# NBD_FLAG_SEND_WRITE_ZEROES is set on writable connections -# even when can_zero returns fal...
2019 Aug 23
22
cross-project patches: Add NBD Fast Zero support
This is a cover letter to a series of patches being proposed in tandem to four different projects: - nbd: Document a new NBD_CMD_FLAG_FAST_ZERO command flag - qemu: Implement the flag for both clients and server - libnbd: Implement the flag for clients - nbdkit: Implement the flag for servers, including the nbd passthrough client If you want to test the patches together, I've pushed a