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| author | Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2024-04-29 07:32:15 +0300 |
|---|---|---|
| committer | Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2024-05-06 05:06:05 +0300 |
| commit | 944b06840a73a23c096b2582b960a0a1e3678d43 (patch) | |
| tree | 0a40290fab54951033c26452c9a17e0b1301ad91 /drivers/firewire | |
| parent | 57614c28843d4ec34c12ca67dd11411396aab55d (diff) | |
| download | linux-944b06840a73a23c096b2582b960a0a1e3678d43.tar.xz | |
firewire: core: add tracepoints events for asynchronous outbound request
In a view of core transaction service, the asynchronous outbound request
consists of two stages; initiation and completion. This commit adds a pair
of event for them.
The following example is for asynchronous lock request with compare_swap
code to offset 0x'ffff'f000'0904 in node 0xffc0.
async_request_outbound_initiate: \
transaction=0xffff955fc6a07a10 generation=5 scode=2 dst_id=0xffc0 \
tlabel=54 tcode=9 src_id=0xffc1 offset=0xfffff0000904 \
header={0xffc0d990,0xffc1ffff,0xf0000904,0x80002}
data={0x80,0x940181}
async_request_outbound_complete: \
transaction=0xffff955fc6a07a10 generation=5 scode=2 status=2 \
timestamp=0xd887
Link: https://lore.kernel.org/r/20240429043218.609398-3-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Diffstat (limited to 'drivers/firewire')
| -rw-r--r-- | drivers/firewire/core-transaction.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/firewire/core-transaction.c b/drivers/firewire/core-transaction.c index 3ecb0b945083..c9318024386f 100644 --- a/drivers/firewire/core-transaction.c +++ b/drivers/firewire/core-transaction.c @@ -29,6 +29,7 @@ #include <asm/byteorder.h> #include "core.h" +#include <trace/events/firewire.h> #include "packet-header-definitions.h" #define HEADER_DESTINATION_IS_BROADCAST(header) \ @@ -173,6 +174,9 @@ static void transmit_complete_callback(struct fw_packet *packet, struct fw_transaction *t = container_of(packet, struct fw_transaction, packet); + trace_async_request_outbound_complete((uintptr_t)t, packet->generation, packet->speed, + status, packet->timestamp); + switch (status) { case ACK_COMPLETE: close_transaction(t, card, RCODE_COMPLETE, packet->timestamp); @@ -394,6 +398,9 @@ void __fw_send_request(struct fw_card *card, struct fw_transaction *t, int tcode spin_unlock_irqrestore(&card->lock, flags); + trace_async_request_outbound_initiate((uintptr_t)t, generation, speed, t->packet.header, payload, + tcode_is_read_request(tcode) ? 0 : length / 4); + card->driver->send_request(card, &t->packet); } EXPORT_SYMBOL_GPL(__fw_send_request); |