From: Laura Mihaela Vasilescu Date: Wed, 31 Jul 2013 20:19:48 +0000 (+0000) Subject: igb: Add macro for size of RETA indirection table X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=c342b39ea7ca0e46e093cdb346bf52b2b4e71b01;p=linux-beck.git igb: Add macro for size of RETA indirection table RETA indirection table is used to assign the received data to a CPU in order to maintain an efficient distribution of network receive processing across multiple CPUs. This patch removes the hard-coded value for the size of the indirection table and defines a new macro. Signed-off-by: Laura Mihaela Vasilescu Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher --- diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h index 15ea8dc9dad3..5a2659bf0c32 100644 --- a/drivers/net/ethernet/intel/igb/igb.h +++ b/drivers/net/ethernet/intel/igb/igb.h @@ -343,6 +343,8 @@ struct hwmon_buff { }; #endif +#define IGB_RETA_SIZE 128 + /* board specific private data structure */ struct igb_adapter { unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index 7f6cf654b307..1acd9c06026a 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -3157,7 +3157,7 @@ static void igb_setup_mrqc(struct igb_adapter *adapter) * we are generating the results for n and n+2 and then interleaving * those with the results with n+1 and n+3. */ - for (j = 0; j < 32; j++) { + for (j = 0; j < IGB_RETA_SIZE / 4; j++) { /* first pass generates n and n+2 */ u32 base = ((j * 0x00040004) + 0x00020000) * num_rx_queues; u32 reta = (base & 0x07800780) >> (7 - shift);