Date: Fri, 11 Apr 2008 00:51:15 +0200 (CEST) From: Stefan Richter Subject: firewire: fw-ohci: extend logging of bus generations and node ID Extend the logging of "AR evt_bus_reset, link internal" to "AR evt_bus_reset, generation ${selfIDGeneration}". That way we can check whether this generation matches the one seen in self ID complete event logging. See OHCI 1.1 clause 8.4.2.3. Also extend logging of "firewire_ohci: * selfIDs, generation *" by "local node ID ffc*" in self ID logging to make the local node in AT/AR event logs more obvious. Signed-off-by: Stefan Richter Signed-off-by: Jarod Wilson --- drivers/firewire/fw-ohci.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) Index: linux/drivers/firewire/fw-ohci.c =================================================================== --- linux.orig/drivers/firewire/fw-ohci.c +++ linux/drivers/firewire/fw-ohci.c @@ -302,13 +302,13 @@ static char _p(u32 *s, int shift) return port[*s >> shift & 3]; } -static void log_selfids(int generation, int self_id_count, u32 *s) +static void log_selfids(int node_id, int generation, int self_id_count, u32 *s) { if (likely(!(param_debug & OHCI_PARAM_DEBUG_SELFIDS))) return; - printk(KERN_DEBUG KBUILD_MODNAME ": %d selfIDs, generation %d\n", - self_id_count, generation); + printk(KERN_DEBUG KBUILD_MODNAME ": %d selfIDs, generation %d, " + "local node ID %04x\n", self_id_count, generation, node_id); for (; self_id_count--; ++s) if ((*s & 1 << 23) == 0) @@ -371,6 +371,12 @@ static void log_ar_at_event(char dir, in if (unlikely(evt >= ARRAY_SIZE(evts))) evt = 0x1f; + if (evt == OHCI1394_evt_bus_reset) { + printk(KERN_DEBUG "A%c evt_bus_reset, generation %d\n", + dir, (header[2] >> 16) & 0xff); + return; + } + if (header[0] == ~header[1]) { printk(KERN_DEBUG "A%c %s, %s, %08x\n", dir, evts[evt], phys[header[0] >> 30 & 0x3], @@ -417,7 +423,7 @@ static void log_ar_at_event(char dir, in #else #define log_irqs(evt) -#define log_selfids(generation, self_id_count, sid) +#define log_selfids(node_id, generation, self_id_count, sid) #define log_ar_at_event(dir, speed, header, evt) #endif /* CONFIG_FIREWIRE_OHCI_DEBUG */ @@ -1320,7 +1326,8 @@ static void bus_reset_tasklet(unsigned l dma_free_coherent(ohci->card.device, CONFIG_ROM_SIZE, free_rom, free_rom_bus); - log_selfids(generation, self_id_count, ohci->self_id_buffer); + log_selfids(ohci->node_id, generation, + self_id_count, ohci->self_id_buffer); fw_core_handle_bus_reset(&ohci->card, ohci->node_id, generation, self_id_count, ohci->self_id_buffer);