cvs commit: src/sys/dev/em if_em.c

[John Baldwin]

jhb         2006-10-31 17:21:15 UTC

  FreeBSD src repository

  Modified files:
    sys/dev/em           if_em.c 
  Log:
  Allocate receive and transmit data structures during attach() and free them
  during detach() similar to other NIC drivers rather than allocating them
  during init() and freeing them during stop():
  - Move creation of tx bus_dma tag amd maps and tx_buffer_area from
    em_setup_transmit_structures() to em_allocate_transmit_structures().
  - Call em_allocate_xxx_structures() in em_attach().
  - Only call em_free_xxx_structures() in em_detach().
  - Change em_setup_xxx_structures() to free any existing tx or rx buffers
    and in the case of rx repopulate the ring with newer buffers.
  
  Reviewed by:    jfv
  
  Revision  Changes    Path
  1.160     +82 -47    src/sys/dev/em/if_em.c