[RFC PATCH 2/4] i40e: use minimal rx and tx ring buffers for kdump
Coiby Xu
coxu at redhat.com
Mon Feb 22 02:06:59 EST 2021
Use the minimum of the number of descriptors thus we will allocate the
minimal ring buffers for kdump.
Signed-off-by: Coiby Xu <coxu at 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 069c86e2f69d..5307f1744766 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -10552,6 +10552,11 @@ 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;
}
--
2.30.0
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