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i40e: use minimal Rx and Tx ring buffers for kdump
author
Coiby Xu
<coxu@redhat.com>
Thu, 4 Mar 2021 02:55:42 +0000
(10:55 +0800)
committer
Tony Nguyen
<anthony.l.nguyen@intel.com>
Fri, 23 Apr 2021 16:03:56 +0000
(09:03 -0700)
Use the minimum of the number of descriptors thus we will allocate the
minimal ring buffers for kdump.
Signed-off-by: Coiby Xu <coxu@redhat.com>
Tested-by: Dave Switzer <david.switzer@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
drivers/net/ethernet/intel/i40e/i40e_main.c
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diff --git
a/drivers/net/ethernet/intel/i40e/i40e_main.c
b/drivers/net/ethernet/intel/i40e/i40e_main.c
index
b51b8e2
..
2d3dbb3
100644
(file)
--- a/
drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/
drivers/net/ethernet/intel/i40e/i40e_main.c
@@
-11040,6
+11040,11
@@
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;
}