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10 Commits

Author SHA1 Message Date
Harald Welte d32797677d virt_l1_sched_execute: talloc_free() TDMA item after unlinking it 
We so far relied on it being free'd once the TDMA item is free'd,
but let's make it more explicit.  After we've unlinked it from the
list, nobody is going to reference it ever again.

Change-Id: I57a596428be10ce720e0b528ecfc44a70e3e3078
 2020-03-07 10:31:48 +01:00
Harald Welte ee26ba6e60 cosmetic: Use INIT_LLIST_HEAD() and llist_add_tail() 
... instead of manually re-inventing them.

Change-Id: I7e0810aa7fd1daa8f9f3e46a207589a4c6da836b
 2020-03-07 10:18:18 +01:00
Harald Welte 35564c691f VIRT-PHY: virt_l1_sched: Pass timeslot number into call-back 
When we schedule a given frame for transmission, we save its timeslot
number.  However, the callback doesn't get informed about this so far.

Change-Id: I608a91ae8e2a57a2d6f87f4b873c82edb0215bf6
 2017-08-20 22:19:17 +02:00
Harald Welte 5e0fa863cb VIRT-PHY: enable proper memory leak debugging 
We make sure that all allocations are tracked back to one talloc root
context, and install the usual SIGUSR1 handler to dump the talloc
report.  This enables us to do interactive debugging for memory leaks
while virtphy is running.

Change-Id: I73b3cf86eea5f56595c1b045cf0fde8035ff185a
 2017-07-19 14:10:04 +02:00
Harald Welte f5e0f6424b VIRT-PHY: Major rewrite to deal with muliple L1CTL clients 
Change-Id: Ibfb2a93f8b45a95215c01368b1a52d92283474e6
 2017-07-19 11:30:26 +02:00
Harald Welte c2083feefa VIRT-PHY: reorganize data structures 
* l1_model_ms can become a static member of l1_model_ms
* crypto_info_ms can become a static member of l1_state_ms

Change-Id: I94ca4dad1c6c668ce6307d5e5d728b1c1502af12
 2017-07-18 22:18:52 +02:00
Harald Welte 7e65a1483f VIRT-PHY: coding style / API usage cleanup 
This is the result of my manual clean-up of the many coding style issues
found in the stumpf/virt-phy branch of OsmocomBB.  Some may remain, but
it's much closer to what we're used to in the Osmocom world now.

Change-Id: I3aa95dbef75d7749d490aad0237d074528527e8b
 2017-07-12 23:26:26 +02:00
Sebastian Stumpf a090f635b0 VIRT-PHY: Scheduler - correct handling over hyperframe repeat. 
Scheduler will no longer skip tasks that are scheduler for a framenumber
greater than the current fn because of a hyperframe repetition.

Change-Id: I683ba18b5dee308d58f9a95a0ee10e22da207eda
 2017-07-12 23:26:26 +02:00
Sebastian Stumpf 30cc674df8 VIRT-PHY: Calculate correct scheduler fn for data- and tch-msgs on ul. 
Proper calculation of the scheduled frame number and appending the jobs
with that fn to the scheduler. Thus uplink msgs are scheduled at the
(approx.) correct fn and with this fn set in the gsmtap hdr.

Change-Id: I0f44d0b5b9208755e671c619d1f851a043aefb54
 2017-07-12 23:26:26 +02:00
Sebastian Stumpf 63f3ce2482 VIRT-PHY: Uplink scheduler implementation. 
Implemented simple scheduler depending on frame number in downlink. It
will be executed each time we receive a msg on downlink and send out all
scheduled uplink msgs with a sched_fn smaller than the one of this
received downlink msg.

Further refactored l1ctl_sap by extracting rach and fbsb logic and
putting it to own files virt_prim_fbsb.c and virt_prim_rach.c

Added simple states to the ms layer 1 model, indicating if the ms is
currently searching for bts, syncing to or camping on a bts. Downlink
will be handled differently dependent of the state.

Change-Id: I8937b1d6568f5d3750bbdc5d77fa283074d5365e
 2017-07-12 23:26:26 +02:00