Device-to-device link training
AssigneeIntel Corporation
InventorKent C. LUSTED
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Abstract
Examples described herein relate to a network interface comprising physical medium dependent (PMD) circuitry, the PMD circuitry to during link training of at least one lane consistent with IEEE 802.3, exit to TIME_OUT state during TRAIN_LOCAL state based on consideration of expiration of a wait timer, loss of local_tf_lock state, and loss of remote_tf_lock state. In some examples, during link training for at least one lane consistent with IEEE 802.3, the PMD circuitry is to exit to TIME_OUT state during TRAIN_REMOTE state based on consideration of expiration of a wait timer, loss of local_tf_lock state, and loss of remote_tf_lock state. In some examples, link training consistent with IEEE 802.3 comprises performance of the PMD control function in Section 162.8.11 of IEEE 802.3ck.
Claims20
A method comprising:
- a driver configuring a first device to:
- during link training of at least one lane consistent with IEEE 802.3 with a potential link partner, exiting to TIME_OUT state from TRAIN_LOCAL state based on consideration of expiration of a wait timer, loss of local_tf_lock state, and loss of remote_tf_lock state.
An apparatus comprising:
- based on a driver configuration, physical medium dependent (PMD) circuitry to:
- during link training of at least one lane consistent with IEEE 802.3 with a second device, exit to TIME_OUT state from TRAIN_LOCAL state based on consideration of expiration of a wait timer, loss of local_tf_lock state, and loss of remote_tf_lock state.
Dependencies are inferred from the claim text.