It's no longer used. We used to generate a D2H FIS based
upon the command FIS that prompted the update, but in reality,
the D2H FIS is generated purely from register state.
cmd_fis is vestigial, so get rid of it.
Signed-off-by: John Snow <js...@redhat.com>
---
hw/ide/ahci.c | 11 ++++-------
1 file changed, 4 insertions(+), 7 deletions(-)
diff --git a/hw/ide/ahci.c b/hw/ide/ahci.c
index 3c50ccb..aa605ec 100644
--- a/hw/ide/ahci.c
+++ b/hw/ide/ahci.c
@@ -47,7 +47,7 @@ do { \
static void check_cmd(AHCIState *s, int port);
static int handle_cmd(AHCIState *s, int port, uint8_t slot);
static void ahci_reset_port(AHCIState *s, int port);
-static void ahci_write_fis_d2h(AHCIDevice *ad, uint8_t *cmd_fis);
+static void ahci_write_fis_d2h(AHCIDevice *ad);
static void ahci_init_d2h(AHCIDevice *ad);
static int ahci_dma_prepare_buf(IDEDMA *dma, int32_t limit);
static void ahci_commit_buf(IDEDMA *dma, uint32_t tx_bytes);
@@ -540,12 +540,9 @@ static void ahci_check_cmd_bh(void *opaque)
static void ahci_init_d2h(AHCIDevice *ad)
{
- uint8_t init_fis[20];
IDEState *ide_state = &ad->port.ifs[0];
AHCIPortRegs *pr = &ad->port_regs;
- memset(init_fis, 0, sizeof(init_fis));
-
/* We're emulating receiving the first Reg H2D Fis from the device;
* Update the SIG register, but otherwise procede as normal. */
pr->sig = (ide_state->hcyl << 24) |
@@ -553,7 +550,7 @@ static void ahci_init_d2h(AHCIDevice *ad)
(ide_state->sector << 8) |
(ide_state->nsector & 0xFF);
- ahci_write_fis_d2h(ad, init_fis);
+ ahci_write_fis_d2h(ad);
}
static void ahci_set_signature(AHCIDevice *ad, uint32_t sig)
@@ -755,7 +752,7 @@ static void ahci_write_fis_pio(AHCIDevice *ad, uint16_t len)
ahci_trigger_irq(ad->hba, ad, PORT_IRQ_PIOS_FIS);
}
-static void ahci_write_fis_d2h(AHCIDevice *ad, uint8_t *cmd_fis)
+static void ahci_write_fis_d2h(AHCIDevice *ad)
{
AHCIPortRegs *pr = &ad->port_regs;
uint8_t *d2h_fis;
@@ -1410,7 +1407,7 @@ static void ahci_cmd_done(IDEDMA *dma)
DPRINTF(ad->port_no, "cmd done\n");
/* update d2h status */
- ahci_write_fis_d2h(ad, NULL);
+ ahci_write_fis_d2h(ad);
if (!ad->check_bh) {
/* maybe we still have something to process, check later */
--
2.4.3
