Decide whether the doorbell should be signaled when committing a
replenish transaction in the main replenish loop, rather than in
ipa_endpoint_replenish_one(). This is a step to facilitate the
next patch.
Signed-off-by: Alex Elder <elder@xxxxxxxxxx>
---
drivers/net/ipa/ipa_endpoint.c | 21 ++++++++++++---------
1 file changed, 12 insertions(+), 9 deletions(-)
diff --git a/drivers/net/ipa/ipa_endpoint.c b/drivers/net/ipa/ipa_endpoint.c
index 060a025d70ec6..274cf1c30b593 100644
--- a/drivers/net/ipa/ipa_endpoint.c
+++ b/drivers/net/ipa/ipa_endpoint.c
@@ -1036,10 +1036,10 @@ static void ipa_endpoint_status(struct ipa_endpoint *endpoint)
iowrite32(val, ipa->reg_virt + offset);
}
-static int ipa_endpoint_replenish_one(struct ipa_endpoint *endpoint)
+static int
+ipa_endpoint_replenish_one(struct ipa_endpoint *endpoint, bool doorbell)
{
struct gsi_trans *trans;
- bool doorbell = false;
struct page *page;
u32 buffer_size;
u32 offset;
@@ -1064,11 +1064,6 @@ static int ipa_endpoint_replenish_one(struct ipa_endpoint *endpoint)
goto err_free_pages;
trans->data = page; /* transaction owns page now */
- if (++endpoint->replenish_ready == IPA_REPLENISH_BATCH) {
- doorbell = true;
- endpoint->replenish_ready = 0;
- }
-
gsi_trans_commit(trans, doorbell);
return 0;
@@ -1104,9 +1099,17 @@ static void ipa_endpoint_replenish(struct ipa_endpoint *endpoint)
if (test_and_set_bit(IPA_REPLENISH_ACTIVE, endpoint->replenish_flags))
return;
- while (atomic_dec_not_zero(&endpoint->replenish_backlog))
- if (ipa_endpoint_replenish_one(endpoint))
+ while (atomic_dec_not_zero(&endpoint->replenish_backlog)) {
+ bool doorbell;
+
+ if (++endpoint->replenish_ready == IPA_REPLENISH_BATCH)
+ endpoint->replenish_ready = 0;
+
+ /* Ring the doorbell if we've got a full batch */
+ doorbell = !endpoint->replenish_ready;
+ if (ipa_endpoint_replenish_one(endpoint, doorbell))
goto try_again_later;
+ }
clear_bit(IPA_REPLENISH_ACTIVE, endpoint->replenish_flags);
--
2.32.0
