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net: libwx: add support for set_coalesce in wx_ethtool_ops_vf

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Add support for set_coalesce in wx_ethtool_ops_vf, which
is used to set interrupt coalescing parameters.

Update wx_write_eitr_vf() to use the same interrupt
moderation encoding as PF devices, since PF and VF share
the same register layout. And remove the now-unused
WX_VXITR_MASK definition.

Signed-off-by: Mengyuan Lou <mengyuanlou@net-swift.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Link: https://patch.msgid.link/20260710015925.34769-3-mengyuanlou@net-swift.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Mengyuan Lou
2026-07-10 09:59:25 +08:00
committed by Jakub Kicinski
parent 0ce45ae881
commit e424cd4626
3 changed files with 18 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/net/ethernet/wangxun/libwx/wx_ethtool.c
View File

@@ -10,6 +10,7 @@
#include "wx_hw.h"
#include "wx_lib.h"
#include "wx_vf_common.h"
#include "wx_vf_lib.h"
struct wx_stats {
char stat_string[ETH_GSTRING_LEN];
@@ -488,7 +489,10 @@ int wx_set_coalesce(struct net_device *netdev,
else
/* rx only or mixed */
q_vector->itr = rx_itr_param;
wx_write_eitr(q_vector);
if (wx->pdev->is_virtfn)
wx_write_eitr_vf(q_vector);
else
wx_write_eitr(q_vector);
}
wx_update_rsc(wx);
@@ -845,6 +849,7 @@ static const struct ethtool_ops wx_ethtool_ops_vf = {
.set_ringparam = wx_set_ringparam_vf,
.get_msglevel = wx_get_msglevel,
.get_coalesce = wx_get_coalesce,
.set_coalesce = wx_set_coalesce,
.get_ts_info = ethtool_op_get_ts_info,
.get_link_ksettings = wx_get_link_ksettings_vf,
};

1
drivers/net/ethernet/wangxun/libwx/wx_vf.h
View File

@@ -41,7 +41,6 @@
#define WX_VF_MAX_RX_QUEUES 4
#define WX_VXITR(i) (0x200 + (4 * (i))) /* i=[0,1] */
#define WX_VXITR_MASK GENMASK(8, 0)
#define WX_VXITR_CNT_WDIS BIT(31)
#define WX_VXIVAR_MISC 0x260
#define WX_VXIVAR(i) (0x240 + (4 * (i))) /* i=[0,3] */

13
drivers/net/ethernet/wangxun/libwx/wx_vf_lib.c
View File

@@ -16,7 +16,18 @@ void wx_write_eitr_vf(struct wx_q_vector *q_vector)
int v_idx = q_vector->v_idx;
u32 itr_reg;
itr_reg = q_vector->itr & WX_VXITR_MASK;
switch (wx->mac.type) {
case wx_mac_sp:
itr_reg = q_vector->itr & WX_SP_MAX_EITR;
break;
case wx_mac_aml:
case wx_mac_aml40:
itr_reg = (q_vector->itr >> 3) & WX_AML_MAX_EITR;
break;
default:
itr_reg = q_vector->itr & WX_EM_MAX_EITR;
break;
}
/* set the WDIS bit to not clear the timer bits and cause an
* immediate assertion of the interrupt