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mei: allow read concurrency

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Replace clunky read state machine with read stack
implemented as per client read list, this is important
mostly for mei drivers with unsolicited reads

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tomas Winkler
2015-02-10 10:39:46 +02:00
committed by Greg Kroah-Hartman
parent 928fa6664b
commit a9bed61053
8 changed files with 98 additions and 119 deletions
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7
drivers/misc/mei/client.h
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@@ -77,11 +77,12 @@ int mei_cl_unlink(struct mei_cl *cl);
struct mei_cl *mei_cl_alloc_linked(struct mei_device *dev, int id);
int mei_cl_flush_queues(struct mei_cl *cl);
struct mei_cl_cb *mei_cl_find_read_cb(struct mei_cl *cl);
struct mei_cl_cb *mei_cl_read_cb(const struct mei_cl *cl,
const struct file *fp);
void mei_cl_read_cb_flush(const struct mei_cl *cl, const struct file *fp);
struct mei_cl_cb *mei_cl_alloc_cb(struct mei_cl *cl, size_t length,
enum mei_cb_file_ops type, struct file *fp);
int mei_cl_flush_queues(struct mei_cl *cl, const struct file *fp);
int mei_cl_flow_ctrl_creds(struct mei_cl *cl);