ahci: stash ncq command
For migration and werror=stop/rerror=stop resume purposes, it will be convenient to have the command handy inside of ncq_tfs. Eventually, we'd like to avoid reading from the FIS entirely after the initial read, so this is a byte (hah!) sized step in that direction. Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 1435767578-32743-3-git-send-email-jsnow@redhat.com
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@ -996,6 +996,7 @@ static void process_ncq_command(AHCIState *s, int port, uint8_t *cmd_fis,
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ncq_tfs->used = 1;
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ncq_tfs->drive = ad;
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ncq_tfs->slot = slot;
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ncq_tfs->cmd = ncq_fis->command;
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ncq_tfs->lba = ((uint64_t)ncq_fis->lba5 << 40) |
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((uint64_t)ncq_fis->lba4 << 32) |
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((uint64_t)ncq_fis->lba3 << 24) |
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@ -1047,7 +1048,7 @@ static void process_ncq_command(AHCIState *s, int port, uint8_t *cmd_fis,
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ncq_tfs->lba, ncq_tfs->lba + ncq_tfs->sector_count - 1,
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ide_state->nb_sectors - 1);
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switch(ncq_fis->command) {
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switch (ncq_tfs->cmd) {
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case READ_FPDMA_QUEUED:
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DPRINTF(port, "NCQ reading %d sectors from LBA %"PRId64", "
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"tag %d\n",
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@ -259,6 +259,7 @@ typedef struct NCQTransferState {
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uint16_t sector_count;
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uint64_t lba;
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uint8_t tag;
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uint8_t cmd;
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int slot;
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int used;
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} NCQTransferState;
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