[net-next 10/15] igb: Add macro for size of RETA indirection table
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STALE4807d
SUPERSEDED: 1 (0M)
From: Jeff Kirsher <hidden>
Date: 2013-08-21 08:23:52
Subsystem:
intel ethernet drivers, networking drivers, the rest · Maintainers:
Tony Nguyen, Przemek Kitszel, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Revision v1 of 113 in this series; 1 review trailer.
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From: Laura Mihaela Vasilescu <redacted> 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 <redacted> Tested-by: Aaron Brown <redacted> Signed-off-by: Jeff Kirsher <redacted> --- 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);
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1.8.3.1