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ntb: Check tx descriptors outstanding instead of head/tail for tx queue

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Use existing function ntb_transport_tx_free_entry() instead of open coding
the check to see if there are outstanding tx descriptors.

Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
This commit is contained in:
Dave Jiang 2023-08-22 09:05:02 -07:00 committed by Jon Mason
parent 5a7693e6bb
commit 6439822328
1 changed files with 1 additions and 1 deletions
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2
drivers/ntb/ntb_transport.c
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@ -1901,7 +1901,7 @@ static void ntb_async_tx(struct ntb_transport_qp *qp,
static int ntb_process_tx(struct ntb_transport_qp *qp,
struct ntb_queue_entry *entry)
{
if (qp->tx_index == qp->remote_rx_info->entry) {
if (!ntb_transport_tx_free_entry(qp)) {
qp->tx_ring_full++;
return -EAGAIN;
}