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qcacld-3.0: Reject up-tree ops during transition

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Currently, the Driver Synchronization Core (DSC) blocks transitions
up-tree and down-tree from a node currently undergoing a transition, but
only rejects operations down-tree from the current node. Instead, reject
new operations both up-tree and down-tree from the current node under
transition. This provides more forgiving safety guarantees to operation
implementations at the cost of a reduced amount of parallelism that can
be achieved.

Change-Id: I09e1c48f7030a2252380d172c1c00ee22eac39c5
CRs-Fixed: 2421786
This commit is contained in:
Dustin Brown
2019-03-22 13:18:27 -07:00
committed by nshrivas
parent 2a1755db02
commit 06878b3a80
5 changed files with 39 additions and 37 deletions
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36
components/dsc/test/wlan_dsc_test.c
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@@ -199,17 +199,21 @@ static uint32_t dsc_test_driver_trans_blocks(void)
goto exit;
}
action_expect(driver, trans, QDF_STATUS_SUCCESS, errors);
/* test */
/* a driver in transition should cause ... */
action_expect(driver, trans, QDF_STATUS_SUCCESS, errors);
/* ... the same driver trans/ops to fail */
action_expect(driver, trans, QDF_STATUS_E_AGAIN, errors);
action_expect(driver, op, QDF_STATUS_E_AGAIN, errors);
/* ... children psoc trans/ops to fail */
dsc_for_each_driver_psoc(driver, psoc) {
action_expect(psoc, trans, QDF_STATUS_E_AGAIN, errors);
action_expect(psoc, op, QDF_STATUS_E_AGAIN, errors);
/* ... grandchildren vdev trans/ops to fail */
dsc_for_each_psoc_vdev(psoc, vdev) {
action_expect(vdev, trans, QDF_STATUS_E_AGAIN, errors);
action_expect(vdev, op, QDF_STATUS_E_AGAIN, errors);
@@ -248,31 +252,37 @@ static uint32_t dsc_test_psoc_trans_blocks(void)
/* test */
/* a psoc in transition should cause ... */
psoc = nth_psoc(driver, 1);
action_expect(psoc, trans, QDF_STATUS_SUCCESS, errors);
/* ... driver trans/ops to fail */
action_expect(driver, trans, QDF_STATUS_E_AGAIN, errors);
action_expect(driver, op, QDF_STATUS_SUCCESS, errors);
dsc_driver_op_stop(driver);
action_expect(driver, op, QDF_STATUS_E_AGAIN, errors);
/* ... the same psoc trans/ops to fail */
action_expect(psoc, trans, QDF_STATUS_E_AGAIN, errors);
action_expect(psoc, op, QDF_STATUS_E_AGAIN, errors);
/* ... children vdev trans/ops to fail */
dsc_for_each_psoc_vdev(psoc, vdev) {
action_expect(vdev, trans, QDF_STATUS_E_AGAIN, errors);
action_expect(vdev, op, QDF_STATUS_E_AGAIN, errors);
}
/* a sibling psoc in transition should succeed and cause ... */
psoc = nth_psoc(driver, 2);
action_expect(psoc, trans, QDF_STATUS_SUCCESS, errors);
/* ... driver trans/ops to fail */
action_expect(driver, trans, QDF_STATUS_E_AGAIN, errors);
action_expect(driver, op, QDF_STATUS_SUCCESS, errors);
dsc_driver_op_stop(driver);
action_expect(driver, op, QDF_STATUS_E_AGAIN, errors);
/* ... the same psoc trans/ops to fail */
action_expect(psoc, trans, QDF_STATUS_E_AGAIN, errors);
action_expect(psoc, op, QDF_STATUS_E_AGAIN, errors);
/* ... children vdev trans/ops to fail */
dsc_for_each_psoc_vdev(psoc, vdev) {
action_expect(vdev, trans, QDF_STATUS_E_AGAIN, errors);
action_expect(vdev, op, QDF_STATUS_E_AGAIN, errors);
@@ -309,22 +319,24 @@ static uint32_t dsc_test_vdev_trans_blocks(void)
goto exit;
}
/* test */
/* a vdev in transition should cause ... */
dsc_for_each_driver_psoc(driver, psoc) {
dsc_for_each_psoc_vdev(psoc, vdev)
action_expect(vdev, trans, QDF_STATUS_SUCCESS, errors);
}
/* test */
/* ... driver trans/ops to fail */
action_expect(driver, trans, QDF_STATUS_E_AGAIN, errors);
action_expect(driver, op, QDF_STATUS_SUCCESS, errors);
dsc_driver_op_stop(driver);
action_expect(driver, op, QDF_STATUS_E_AGAIN, errors);
/* ... psoc trans/ops to fail */
dsc_for_each_driver_psoc(driver, psoc) {
action_expect(psoc, trans, QDF_STATUS_E_AGAIN, errors);
action_expect(psoc, op, QDF_STATUS_SUCCESS, errors);
dsc_psoc_op_stop(psoc);
action_expect(psoc, op, QDF_STATUS_E_AGAIN, errors);
/* ... the same vdev trans/ops to fail */
dsc_for_each_psoc_vdev(psoc, vdev) {
action_expect(vdev, trans, QDF_STATUS_E_AGAIN, errors);
action_expect(vdev, op, QDF_STATUS_E_AGAIN, errors);