30bf066cd9
Each user_context receives a separate dpi value and thus a different
address on the doorbell bar. The qedr_mmap function needs to validate
the address and map the doorbell bar accordingly.
The current implementation always checked against dpi=0 doorbell range
leading to a wrong mapping for doorbell bar. (It entered an else case
that mapped the address differently). qedr_mmap should only be used
for doorbells, so the else was actually wrong in the first place.
This only has an affect on arm architecture and not an issue on a
x86 based architecture.
This lead to doorbells not occurring on arm based systems and left
applications that use more than one dpi (or several applications
run simultaneously ) to hang.
Fixes:
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|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| main.c | ||
| qedr.h | ||
| qedr_hsi_rdma.h | ||
| qedr_iw_cm.c | ||
| qedr_iw_cm.h | ||
| qedr_roce_cm.c | ||
| qedr_roce_cm.h | ||
| verbs.c | ||
| verbs.h | ||