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hw/scsi/esp-pci: set DMA_STAT_BCMBLT when BLAST command issued

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Even though the BLAST command isn't fully implemented in QEMU, the DMA_STAT_BCMBLT
bit should be set after the command has been issued to indicate that the command
has completed.

This fixes an issue with the DC390 DOS driver which issues the BLAST command as
part of its normal error recovery routine at startup, and otherwise sits in a
tight loop waiting for DMA_STAT_BCMBLT to be set before continuing.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Message-ID: <20240112131529.515642-5-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
This commit is contained in:
Mark Cave-Ayland 2024-01-12 13:15:29 +00:00 committed by Philippe Mathieu-Daudé
parent 1e8e6644e0
commit c2d7de557d
1 changed files with 1 additions and 0 deletions
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hw/scsi/esp-pci.c
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@ -124,6 +124,7 @@ static void esp_pci_handle_blast(PCIESPState *pci, uint32_t val)
{
trace_esp_pci_dma_blast(val);
qemu_log_mask(LOG_UNIMP, "am53c974: cmd BLAST not implemented\n");
pci->dma_regs[DMA_STAT] |= DMA_STAT_BCMBLT;
}
static void esp_pci_handle_abort(PCIESPState *pci, uint32_t val)