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e1000: Fixes for packet split related issues

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Fixes for packet split related issues
  * On platforms where PAGE_SIZE > 4K, driver will use only required number of
    pages compared to always using 3 pages.
  * Packet split won't be used if the PAGE_SIZE is > 16K
  * Adds a statistics counter to splits.
  * Setting the non Null ptr to zero sized buffers to solve packet split
    receive descriptor error
  * When the no of pages needed is calculated, the header buffer is not
    included for a given MTU.

Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com>
Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This commit is contained in:
Mallikarjuna R Chilakala
2005-10-04 07:05:44 -04:00
committed by Jeff Garzik
parent 2ae76d98fb
commit e4c811c9d2
3 changed files with 60 additions and 38 deletions
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7
drivers/net/e1000/e1000.h
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@ -169,8 +169,8 @@ struct e1000_buffer {
uint16_t next_to_watch;
};
struct e1000_ps_page { struct page *ps_page[MAX_PS_BUFFERS]; };
struct e1000_ps_page_dma { uint64_t ps_page_dma[MAX_PS_BUFFERS]; };
struct e1000_ps_page { struct page *ps_page[PS_PAGE_BUFFERS]; };
struct e1000_ps_page_dma { uint64_t ps_page_dma[PS_PAGE_BUFFERS]; };
struct e1000_tx_ring {
/* pointer to the descriptor ring memory */
@ -300,10 +300,11 @@ struct e1000_adapter {
uint64_t hw_csum_err;
uint64_t hw_csum_good;
uint64_t rx_hdr_split;
uint32_t rx_int_delay;
uint32_t rx_abs_int_delay;
boolean_t rx_csum;
boolean_t rx_ps;
unsigned int rx_ps_pages;
uint32_t gorcl;
uint64_t gorcl_old;
uint16_t rx_ps_bsize0;