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Date: Wed, 21 Aug 2013 01:23:31 -0700 From: Jeff Kirsher <jeffrey.t.kirsher@...el.com> To: davem@...emloft.net Cc: Laura Mihaela Vasilescu <laura.vasilescu@...edu.org>, netdev@...r.kernel.org, gospo@...hat.com, sassmann@...hat.com, Jeff Kirsher <jeffrey.t.kirsher@...el.com> Subject: [net-next 10/15] igb: Add macro for size of RETA indirection table From: Laura Mihaela Vasilescu <laura.vasilescu@...edu.org> 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 <laura.vasilescu@...edu.org> Tested-by: Aaron Brown <aaron.f.brown@...el.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com> --- drivers/net/ethernet/intel/igb/igb.h | 2 ++ drivers/net/ethernet/intel/igb/igb_main.c | 2 +- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h index 15ea8dc..5a2659b 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 7f6cf65..1acd9c0 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); -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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