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 <haripra...@chelsio.com>
---
 drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c 
b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index c613bd6..2f8c736 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;
 }
-- 
2.3.4

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