From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51806) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dnZco-0000Qa-Gv for qemu-devel@nongnu.org; Thu, 31 Aug 2017 20:15:55 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dnZcn-00050n-6t for qemu-devel@nongnu.org; Thu, 31 Aug 2017 20:15:54 -0400 From: John Snow Date: Thu, 31 Aug 2017 20:15:01 -0400 Message-Id: <20170901001502.29915-9-jsnow@redhat.com> In-Reply-To: <20170901001502.29915-1-jsnow@redhat.com> References: <20170901001502.29915-1-jsnow@redhat.com> Subject: [Qemu-devel] [PATCH v3 8/9] AHCI: pretty-print FIS to buffer instead of stderr List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-block@nongnu.org Cc: eblake@redhat.com, qemu-devel@nongnu.org, stefanha@redhat.com, f4bug@amsat.org, John Snow The current FIS printing routines dump the FIS to screen. adjust this such that it dumps to buffer instead, then use this ability to have FIS dump mechanisms via trace-events instead of compiled defines. Signed-off-by: John Snow --- hw/ide/ahci.c | 28 ++++++++++++++++++---------- hw/ide/trace-events | 4 ++++ 2 files changed, 22 insertions(+), 10 deletions(-) diff --git a/hw/ide/ahci.c b/hw/ide/ahci.c index 82cc196..6c98047 100644 --- a/hw/ide/ahci.c +++ b/hw/ide/ahci.c @@ -644,20 +644,21 @@ static void ahci_reset_port(AHCIState *s, int port) ahci_init_d2h(d); } -static void debug_print_fis(uint8_t *fis, int cmd_len) +/* Buffer pretty output based on a raw FIS structure. */ +static char *ahci_pretty_buffer_fis(uint8_t *fis, int cmd_len) { -#if DEBUG_AHCI int i; + GString *s = g_string_new("FIS:"); - fprintf(stderr, "fis:"); for (i = 0; i < cmd_len; i++) { if ((i & 0xf) == 0) { - fprintf(stderr, "\n%02x:",i); + g_string_append_printf(s, "\n0x%02x: ", i); } - fprintf(stderr, "%02x ",fis[i]); + g_string_append_printf(s, "%02x ", fis[i]); } - fprintf(stderr, "\n"); -#endif + g_string_append_c(s, '\n'); + + return g_string_free(s, FALSE); } static bool ahci_map_fis_address(AHCIDevice *ad) @@ -1201,7 +1202,11 @@ static void handle_reg_h2d_fis(AHCIState *s, int port, * table to ide_state->io_buffer */ if (opts & AHCI_CMD_ATAPI) { memcpy(ide_state->io_buffer, &cmd_fis[AHCI_COMMAND_TABLE_ACMD], 0x10); - debug_print_fis(ide_state->io_buffer, 0x10); + if (trace_event_get_state_backends(TRACE_HANDLE_REG_H2D_FIS_DUMP)) { + char *pretty_fis = ahci_pretty_buffer_fis(ide_state->io_buffer, 0x10); + trace_handle_reg_h2d_fis_dump(s, port, pretty_fis); + g_free(pretty_fis); + } s->dev[port].done_atapi_packet = false; /* XXX send PIO setup FIS */ } @@ -1256,8 +1261,11 @@ static int handle_cmd(AHCIState *s, int port, uint8_t slot) trace_handle_cmd_badmap(s, port, cmd_len); goto out; } - debug_print_fis(cmd_fis, 0x80); - + if (trace_event_get_state_backends(TRACE_HANDLE_CMD_FIS_DUMP)) { + char *pretty_fis = ahci_pretty_buffer_fis(cmd_fis, 0x80); + trace_handle_cmd_fis_dump(s, port, pretty_fis); + g_free(pretty_fis); + } switch (cmd_fis[0]) { case SATA_FIS_TYPE_REGISTER_H2D: handle_reg_h2d_fis(s, port, slot, cmd_fis); diff --git a/hw/ide/trace-events b/hw/ide/trace-events index e15fd77..601bd97 100644 --- a/hw/ide/trace-events +++ b/hw/ide/trace-events @@ -105,3 +105,7 @@ ahci_cmd_done(void *s, int port) "ahci(%p)[%d]: cmd done" ahci_reset(void *s) "ahci(%p): HBA reset" allwinner_ahci_mem_read(void *s, void *a, uint64_t addr, uint64_t val, unsigned size) "ahci(%p): read a=%p addr=0x%"HWADDR_PRIx" val=0x%"PRIx64", size=%d" allwinner_ahci_mem_write(void *s, void *a, uint64_t addr, uint64_t val, unsigned size) "ahci(%p): write a=%p addr=0x%"HWADDR_PRIx" val=0x%"PRIx64", size=%d" + +# Warning: Verbose +handle_reg_h2d_fis_dump(void *s, int port, const char *fis) "ahci(%p)[%d]: %s" +handle_cmd_fis_dump(void *s, int port, const char *fis) "ahci(%p)[%d]: %s" -- 2.9.5