[PATCH v1 2/3] i40e: use minimal rx and tx ring buffers for kdump

[Coiby Xu]

Use the minimum of the number of descriptors thus we will allocate the
minimal ring buffers for kdump.

Signed-off-by: Coiby Xu <c...@redhat.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c 
b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 77bf8c392750..d6868c7aee05 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -11029,6 +11029,11 @@ static int i40e_set_num_rings_in_vsi(struct i40e_vsi 
*vsi)
                return -ENODATA;
        }
 
+       if (is_kdump_kernel()) {
+               vsi->num_tx_desc = I40E_MIN_NUM_DESCRIPTORS;
+               vsi->num_rx_desc = I40E_MIN_NUM_DESCRIPTORS;
+       }
+
        return 0;
 }
 
-- 
2.30.1