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authorMika Westerberg <mika.westerberg@linux.intel.com>2017-10-02 13:38:37 +0300
committerDavid S. Miller <davem@davemloft.net>2017-10-02 21:24:41 +0300
commit3b3d9f4da96493e4f68d0a80ab210763a24f8b33 (patch)
treebc64aa4df1e8b9ee2115be067e47f5af9f728665 /drivers/thunderbolt/ctl.c
parent9fb1e654dcf781e71a0ea7c5bdfea3ba85d1d06d (diff)
downloadlinux-3b3d9f4da96493e4f68d0a80ab210763a24f8b33.tar.xz
thunderbolt: Export ring handling functions to modules
These are used by Thunderbolt services to send and receive frames over the high-speed DMA rings. We also put the functions to tb_ namespace to make sure we do not collide with others and add missing kernel-doc comments for the exported functions. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Michael Jamet <michael.jamet@intel.com> Reviewed-by: Yehezkel Bernat <yehezkel.bernat@intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/thunderbolt/ctl.c')
-rw-r--r--drivers/thunderbolt/ctl.c20
1 files changed, 10 insertions, 10 deletions
diff --git a/drivers/thunderbolt/ctl.c b/drivers/thunderbolt/ctl.c
index 05400b77dcd7..dd10789e1dbb 100644
--- a/drivers/thunderbolt/ctl.c
+++ b/drivers/thunderbolt/ctl.c
@@ -359,7 +359,7 @@ static int tb_ctl_tx(struct tb_ctl *ctl, const void *data, size_t len,
cpu_to_be32_array(pkg->buffer, data, len / 4);
*(__be32 *) (pkg->buffer + len) = tb_crc(pkg->buffer, len);
- res = ring_tx(ctl->tx, &pkg->frame);
+ res = tb_ring_tx(ctl->tx, &pkg->frame);
if (res) /* ring is stopped */
tb_ctl_pkg_free(pkg);
return res;
@@ -376,7 +376,7 @@ static bool tb_ctl_handle_event(struct tb_ctl *ctl, enum tb_cfg_pkg_type type,
static void tb_ctl_rx_submit(struct ctl_pkg *pkg)
{
- ring_rx(pkg->ctl->rx, &pkg->frame); /*
+ tb_ring_rx(pkg->ctl->rx, &pkg->frame); /*
* We ignore failures during stop.
* All rx packets are referenced
* from ctl->rx_packets, so we do
@@ -614,11 +614,11 @@ struct tb_ctl *tb_ctl_alloc(struct tb_nhi *nhi, event_cb cb, void *cb_data)
if (!ctl->frame_pool)
goto err;
- ctl->tx = ring_alloc_tx(nhi, 0, 10, RING_FLAG_NO_SUSPEND);
+ ctl->tx = tb_ring_alloc_tx(nhi, 0, 10, RING_FLAG_NO_SUSPEND);
if (!ctl->tx)
goto err;
- ctl->rx = ring_alloc_rx(nhi, 0, 10, RING_FLAG_NO_SUSPEND, 0xffff,
+ ctl->rx = tb_ring_alloc_rx(nhi, 0, 10, RING_FLAG_NO_SUSPEND, 0xffff,
0xffff);
if (!ctl->rx)
goto err;
@@ -652,9 +652,9 @@ void tb_ctl_free(struct tb_ctl *ctl)
return;
if (ctl->rx)
- ring_free(ctl->rx);
+ tb_ring_free(ctl->rx);
if (ctl->tx)
- ring_free(ctl->tx);
+ tb_ring_free(ctl->tx);
/* free RX packets */
for (i = 0; i < TB_CTL_RX_PKG_COUNT; i++)
@@ -673,8 +673,8 @@ void tb_ctl_start(struct tb_ctl *ctl)
{
int i;
tb_ctl_info(ctl, "control channel starting...\n");
- ring_start(ctl->tx); /* is used to ack hotplug packets, start first */
- ring_start(ctl->rx);
+ tb_ring_start(ctl->tx); /* is used to ack hotplug packets, start first */
+ tb_ring_start(ctl->rx);
for (i = 0; i < TB_CTL_RX_PKG_COUNT; i++)
tb_ctl_rx_submit(ctl->rx_packets[i]);
@@ -695,8 +695,8 @@ void tb_ctl_stop(struct tb_ctl *ctl)
ctl->running = false;
mutex_unlock(&ctl->request_queue_lock);
- ring_stop(ctl->rx);
- ring_stop(ctl->tx);
+ tb_ring_stop(ctl->rx);
+ tb_ring_stop(ctl->tx);
if (!list_empty(&ctl->request_queue))
tb_ctl_WARN(ctl, "dangling request in request_queue\n");