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scst_lib: Also intercept READ CAPACITY(16)

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The scst_block_generic_dev_done() function parses the READ CAPACITY
response. Add support for parsing the READ CAPACITY(16) response.



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@7863 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Bart Van Assche
2019-01-05 22:12:35 +00:00
parent a77563897a
commit 1c6a617d51
1 changed files with 14 additions and 17 deletions
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scst/src/scst_lib.c
+14 -17
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@@ -12332,6 +12332,7 @@ int scst_block_generic_dev_done(struct scst_cmd *cmd,
{
int opcode = cmd->cdb[0];
int res = SCST_CMD_STATE_DEFAULT;
int sect_sz_off;
TRACE_ENTRY();
@@ -12348,33 +12349,29 @@ int scst_block_generic_dev_done(struct scst_cmd *cmd,
* simplest, yet sufficient way for that.
*/
if (unlikely(opcode == READ_CAPACITY)) {
if (unlikely(opcode == READ_CAPACITY ||
(opcode == SERVICE_ACTION_IN_16 &&
cmd->cdb[1] == SAI_READ_CAPACITY_16))) {
if (scst_cmd_completed_good(cmd)) {
/* Always keep track of disk capacity */
int buffer_size, sector_size, sh;
uint8_t *buffer;
buffer_size = scst_get_buf_full(cmd, &buffer);
if (unlikely(buffer_size < 8)) {
if (buffer_size != 0) {
PRINT_ERROR("%s: Unable to get cmd "
"buffer (%d)", __func__,
buffer_size);
}
sect_sz_off = opcode == READ_CAPACITY ? 4 : 8;
if (buffer_size < sect_sz_off + 4)
goto out;
}
sector_size = get_unaligned_be32(&buffer[4]);
sector_size = get_unaligned_be32(&buffer[sect_sz_off]);
scst_put_buf_full(cmd, buffer);
if (sector_size != 0)
if (sector_size != 0) {
sh = scst_calc_block_shift(sector_size);
else
sh = 0;
set_block_shift(cmd, sh);
TRACE_DBG("block_shift %d", sh);
set_block_shift(cmd, sh);
TRACE_DBG("block_shift %d", sh);
} else {
PRINT_ERROR("Sector size in %s response is 0",
cmd->op_name);
}
}
} else /* ToDo: add READ CAPACITY(16) here */ {
/* It's all good */
}
TRACE_DBG("cmd->is_send_status=%x, cmd->resp_data_len=%d, "