libqos/ahci: add ahci command size setters
Adds setters for size, prd_size and both via set_sizes. Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: John Snow <jsnow@redhat.com> Message-id: 1423158090-25580-15-git-send-email-jsnow@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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@ -660,6 +660,28 @@ void ahci_command_set_buffer(AHCICommand *cmd, uint64_t buffer)
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cmd->buffer = buffer;
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cmd->buffer = buffer;
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}
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}
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void ahci_command_set_sizes(AHCICommand *cmd, uint64_t xbytes,
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unsigned prd_size)
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{
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/* Each PRD can describe up to 4MiB, and must not be odd. */
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g_assert_cmphex(prd_size, <=, 4096 * 1024);
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g_assert_cmphex(prd_size & 0x01, ==, 0x00);
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cmd->prd_size = prd_size;
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cmd->xbytes = xbytes;
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cmd->fis.count = (cmd->xbytes / AHCI_SECTOR_SIZE);
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cmd->header.prdtl = size_to_prdtl(cmd->xbytes, cmd->prd_size);
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}
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void ahci_command_set_size(AHCICommand *cmd, uint64_t xbytes)
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{
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ahci_command_set_sizes(cmd, xbytes, cmd->prd_size);
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}
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void ahci_command_set_prd_size(AHCICommand *cmd, unsigned prd_size)
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{
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ahci_command_set_sizes(cmd, cmd->xbytes, prd_size);
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}
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void ahci_command_commit(AHCIQState *ahci, AHCICommand *cmd, uint8_t port)
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void ahci_command_commit(AHCIQState *ahci, AHCICommand *cmd, uint8_t port)
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{
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{
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uint16_t i, prdtl;
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uint16_t i, prdtl;
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@ -533,6 +533,10 @@ void ahci_command_free(AHCICommand *cmd);
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/* Command adjustments */
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/* Command adjustments */
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void ahci_command_set_buffer(AHCICommand *cmd, uint64_t buffer);
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void ahci_command_set_buffer(AHCICommand *cmd, uint64_t buffer);
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void ahci_command_set_size(AHCICommand *cmd, uint64_t xbytes);
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void ahci_command_set_prd_size(AHCICommand *cmd, unsigned prd_size);
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void ahci_command_set_sizes(AHCICommand *cmd, uint64_t xbytes,
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unsigned prd_size);
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/* Command Misc */
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/* Command Misc */
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uint8_t ahci_command_slot(AHCICommand *cmd);
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uint8_t ahci_command_slot(AHCICommand *cmd);
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