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authorHariprasad Shenai <hariprasad@chelsio.com>2015-12-23 22:47:15 +0530
committerDavid S. Miller <davem@davemloft.net>2015-12-23 22:34:45 -0500
commite9faeab8d48fc8962e4a244a6097048acebde47b (patch)
tree6ad98c0e1d3a9d1bf4b613c727cd283fb85fe503 /drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
parentcxgb4: Update register range and SGE registers for T6 adapter (diff)
downloadlinux-dev-e9faeab8d48fc8962e4a244a6097048acebde47b.tar.xz
linux-dev-e9faeab8d48fc8962e4a244a6097048acebde47b.zip
cxgb4: Update Congestion Channel map for T6 adapter
Updating Congestion Channel/Priority Map in Congestion Manager Context for T6. In T6 port 0 is mapped to channel 0 and port 1 is mapped to channel 1. For 2 port T4/T5 adapter, port 0 is mapped to channel 0,1 and port 1 is mapped to channel 2,3 Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/chelsio/cxgb4/t4_hw.c')
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/t4_hw.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index c613bd6a6091..2f8c73630410 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -5316,7 +5316,14 @@ unsigned int t4_get_mps_bg_map(struct adapter *adap, int idx)
if (n == 0)
return idx == 0 ? 0xf : 0;
- if (n == 1)
+ /* In T6 (which is a 2 port card),
+ * port 0 is mapped to channel 0 and port 1 is mapped to channel 1.
+ * For 2 port T4/T5 adapter,
+ * port 0 is mapped to channel 0 and 1,
+ * port 1 is mapped to channel 2 and 3.
+ */
+ if ((n == 1) &&
+ (CHELSIO_CHIP_VERSION(adap->params.chip) <= CHELSIO_T5))
return idx < 2 ? (3 << (2 * idx)) : 0;
return 1 << idx;
}