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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>
This commit is contained in:
John Snow 2015-02-05 12:41:25 -05:00 committed by Stefan Hajnoczi
parent ea41deb602
commit cbc97569dc
2 changed files with 26 additions and 0 deletions
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22
tests/libqos/ahci.c
View File

@ -660,6 +660,28 @@ void ahci_command_set_buffer(AHCICommand *cmd, uint64_t buffer)
cmd->buffer = buffer;
}
void ahci_command_set_sizes(AHCICommand *cmd, uint64_t xbytes,
unsigned prd_size)
{
/* Each PRD can describe up to 4MiB, and must not be odd. */
g_assert_cmphex(prd_size, <=, 4096 * 1024);
g_assert_cmphex(prd_size & 0x01, ==, 0x00);
cmd->prd_size = prd_size;
cmd->xbytes = xbytes;
cmd->fis.count = (cmd->xbytes / AHCI_SECTOR_SIZE);
cmd->header.prdtl = size_to_prdtl(cmd->xbytes, cmd->prd_size);
}
void ahci_command_set_size(AHCICommand *cmd, uint64_t xbytes)
{
ahci_command_set_sizes(cmd, xbytes, cmd->prd_size);
}
void ahci_command_set_prd_size(AHCICommand *cmd, unsigned prd_size)
{
ahci_command_set_sizes(cmd, cmd->xbytes, prd_size);
}
void ahci_command_commit(AHCIQState *ahci, AHCICommand *cmd, uint8_t port)
{
uint16_t i, prdtl;

4
tests/libqos/ahci.h
View File

@ -533,6 +533,10 @@ void ahci_command_free(AHCICommand *cmd);
/* Command adjustments */
void ahci_command_set_buffer(AHCICommand *cmd, uint64_t buffer);
void ahci_command_set_size(AHCICommand *cmd, uint64_t xbytes);
void ahci_command_set_prd_size(AHCICommand *cmd, unsigned prd_size);
void ahci_command_set_sizes(AHCICommand *cmd, uint64_t xbytes,
unsigned prd_size);
/* Command Misc */
uint8_t ahci_command_slot(AHCICommand *cmd);