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wifi: rtw89: cam: tweak relation between sec CAM and addr CAM

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In original code architecture, sec CAM is a component of addr CAM.
Hence, sec CAM could not be shared. After MLO, each link has its own
addr CAM. However, one MLD PTK takes only one sec CAM but it needs to
work on multiple links' addr CAMs. So, we now manage sec CAMs in global
pool, and each of them is not bound to a single addr CAM now.

before:

+-----------------+         +--------------------+
| rtw89_{vif/sta} |   ...   | ieee80211_key_conf |
+-----------------+         +--------------------+
        ^                              |
        V                              | hw_key_idx
        |                              |
        |                              V
        |                             +--
   +----------+   addr_cam::key_idx   |  \        +---------+
   | addr_cam |<>---------------------|   |-------| sec_cam |
   +----------+                       |  /        +---------+
                                      +--

after:

+----------------------+         +--------------------+
| rtw89_{vif/sta}_link |   ...   | ieee80211_key_conf |
+----------------------+         +--------------------+
        ^                                   |
        V                                   | hw_key_idx
        |                                   |
        |                                   V
        |                                  --+                  +---------+
        |              +---------+        /  |  sec_cam_idx     | global  |
        |              | sec_cam |-------|   |----------------<>| sec_cam |
        |              +---------+        \  |                  | pool    |
        |                   ^              --+                  +---------+
        |                   |
        |               (*) |
   +----------+             |
   | addr_cam |-------------+
   +----------+

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://msgid.link/20240509090646.35304-3-pkshih@realtek.com
This commit is contained in:
Zong-Zhe Yang 2024-05-09 17:06:44 +08:00 • committed by Ping-Ke Shih
commit 0448c65af9
4 changed files with 67 additions and 50 deletions
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