247f67d439
iflib - reset fl-ifl_fragidx to 0 on iflib_fl_bufs_free(). This caused the panic in em/igb when adding it to a bridge device. iflib - Handle out of order packet delivery from hardware in support of LRO Out of order updates to rxd's is fixed in r315217. However, it is not completely fixed. While refilling the buffers, iflib is not considering the out of order descriptors. Hence, it is refilling sequentially. "idx" variable in _iflib_fl_refill routine is incremented sequentially. By doing refilling sequentially, it will override the SGEs that are *IN USE* by other connections. Fix is to maintain a bitmap of rx descriptors and differentiate the used one with unused one and refill only at the unused indices. This patch also fixes a few bugs in bnxt, related to the same feature. Submitted by: bhargava.marreddy@broadcom.com Reviewed by: venkatkumar.duvvuru@broadcom.com shurd Differential Revision: https://reviews.freebsd.org/D10681
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