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| author |   Arnaud Pouliquen <arnaud.pouliquen@foss.st.com> | 2021-10-15 11:47:00 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-10-21 12:35:35 +0200 |
| commit | e279317e9aeb11d8670e0a5acb10d50566eea9c9 (patch) | |
| tree | db22091c5a95e1cc5dd73752bb9a7786ca848e47 /drivers/rpmsg/rpmsg_internal.h | |
| parent | serial: 8250_dw: drop bogus uartclk optimisation (diff) | |
| download | linux-dev-e279317e9aeb11d8670e0a5acb10d50566eea9c9.tar.xz linux-dev-e279317e9aeb11d8670e0a5acb10d50566eea9c9.zip | |
rpmsg: core: add API to get MTU
Return the rpmsg buffer MTU for sending message, so rpmsg users
can split a long message in several sub rpmsg buffers.
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Link: https://lore.kernel.org/r/20211015094701.5732-2-arnaud.pouliquen@foss.st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/rpmsg/rpmsg_internal.h')
| -rw-r--r-- | drivers/rpmsg/rpmsg_internal.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/rpmsg/rpmsg_internal.h b/drivers/rpmsg/rpmsg_internal.h index a76c344253bf..b1245d3ed7c6 100644 --- a/drivers/rpmsg/rpmsg_internal.h +++ b/drivers/rpmsg/rpmsg_internal.h @@ -53,6 +53,7 @@ struct rpmsg_device_ops { * @trysendto: see @rpmsg_trysendto(), optional * @trysend_offchannel: see @rpmsg_trysend_offchannel(), optional * @poll: see @rpmsg_poll(), optional + * @get_mtu: see @rpmsg_get_mtu(), optional * * Indirection table for the operations that a rpmsg backend should implement. * In addition to @destroy_ept, the backend must at least implement @send and @@ -72,6 +73,7 @@ struct rpmsg_endpoint_ops { void *data, int len); __poll_t (*poll)(struct rpmsg_endpoint *ept, struct file *filp, poll_table *wait); + ssize_t (*get_mtu)(struct rpmsg_endpoint *ept); }; struct device *rpmsg_find_device(struct device *parent, |