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e1000e: lower ring minimum size to 64

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The lower limit of 80 descriptors in the ring is only valid for
one older 8254x chipset. All e1000e devices can use as low as
64 descriptors.

Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Auke Kok 2008-04-23 11:09:19 -07:00 committed by Jeff Garzik
parent 2d9498f369
commit 7b1be1987c
1 changed files with 2 additions and 2 deletions
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4
drivers/net/e1000e/e1000.h
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@ -64,11 +64,11 @@ struct e1000_info;
/* Tx/Rx descriptor defines */ /* Tx/Rx descriptor defines */
#define E1000_DEFAULT_TXD 256 #define E1000_DEFAULT_TXD 256
#define E1000_MAX_TXD 4096 #define E1000_MAX_TXD 4096
#define E1000_MIN_TXD 80 #define E1000_MIN_TXD 64
#define E1000_DEFAULT_RXD 256 #define E1000_DEFAULT_RXD 256
#define E1000_MAX_RXD 4096 #define E1000_MAX_RXD 4096
#define E1000_MIN_RXD 80 #define E1000_MIN_RXD 64
#define E1000_MIN_ITR_USECS 10 /* 100000 irq/sec */ #define E1000_MIN_ITR_USECS 10 /* 100000 irq/sec */
#define E1000_MAX_ITR_USECS 10000 /* 100 irq/sec */ #define E1000_MAX_ITR_USECS 10000 /* 100 irq/sec */