Re: [PATCH 09/14] cxl: Add preliminary workaround for CX4 interrupt limitation

2016-07-06 Thread Frederic Barrat
Le 04/07/2016 15:22, Ian Munsie a écrit : From: Ian Munsie The Mellanox CX4 has a hardware limitation where only 4 bits of the AFU interrupt number can be passed to the XSL when sending an interrupt, limiting it to only 15 interrupts per context (AFU interrupt number 0 is invalid). In order

[PATCH 09/14] cxl: Add preliminary workaround for CX4 interrupt limitation

2016-07-04 Thread Ian Munsie
From: Ian Munsie The Mellanox CX4 has a hardware limitation where only 4 bits of the AFU interrupt number can be passed to the XSL when sending an interrupt, limiting it to only 15 interrupts per context (AFU interrupt number 0 is invalid). In order to overcome this, we will allocate additional