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[PULL,33/65] libqos/ahci: add ahci command size setters

Message ID 1423844701-21041-34-git-send-email-stefanha@redhat.com
State New
Headers show

Commit Message

Stefan Hajnoczi Feb. 13, 2015, 4:24 p.m. UTC 
From: John Snow <jsnow@redhat.com>

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>
---
 tests/libqos/ahci.c | 22 ++++++++++++++++++++++
 tests/libqos/ahci.h |  4 ++++
 2 files changed, 26 insertions(+)
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Patch

diff --git a/tests/libqos/ahci.c b/tests/libqos/ahci.c
index ce1f0ef..2a5d8c4 100644
--- a/tests/libqos/ahci.c
+++ b/tests/libqos/ahci.c
@@ -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;
diff --git a/tests/libqos/ahci.h b/tests/libqos/ahci.h
index 26ccdd6..57ff344 100644
--- a/tests/libqos/ahci.h
+++ b/tests/libqos/ahci.h
@@ -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);