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Date: Wed, 16 Aug 2023 16:57:14 -0700
From: Paul Greenwalt <paul.greenwalt@...el.com>
To: intel-wired-lan@...ts.osuosl.org
Cc: netdev@...r.kernel.org,
Pawel Chmielewski <pawel.chmielewski@...el.com>,
Jesse Brandeburg <jesse.brandeburg@...el.com>,
Paul Greenwalt <paul.greenwalt@...el.com>
Subject: [PATCH iwl-next 2/7] ice: Refactor finding advertised link speed
From: Pawel Chmielewski <pawel.chmielewski@...el.com>
Refactor ice_get_link_ksettings by using lightweight static link mode
maps, populated at module init. This is an efficient solution introduced
in commit 1d4e4ecccb11 ("qede: populate supported link modes maps on
module init") for qede driver
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@...el.com>
Suggested-by : Alexander Lobakin <aleksander.lobakin@...el.com>
Signed-off-by: Pawel Chmielewski <pawel.chmielewski@...el.com>
Signed-off-by: Paul Greenwalt <paul.greenwalt@...el.com>
---
drivers/net/ethernet/intel/ice/ice.h | 1 +
drivers/net/ethernet/intel/ice/ice_ethtool.c | 166 +++++++++++--------
drivers/net/ethernet/intel/ice/ice_main.c | 2 +
3 files changed, 104 insertions(+), 65 deletions(-)
diff --git a/drivers/net/ethernet/intel/ice/ice.h b/drivers/net/ethernet/intel/ice/ice.h
index 5d307bacf7c6..1030a4d1d94e 100644
--- a/drivers/net/ethernet/intel/ice/ice.h
+++ b/drivers/net/ethernet/intel/ice/ice.h
@@ -974,6 +974,7 @@ int ice_stop(struct net_device *netdev);
void ice_service_task_schedule(struct ice_pf *pf);
int ice_load(struct ice_pf *pf);
void ice_unload(struct ice_pf *pf);
+void ice_adv_lnk_speed_maps_init(void);
/**
* ice_set_rdma_cap - enable RDMA support
diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.c b/drivers/net/ethernet/intel/ice/ice_ethtool.c
index d3cb08e66dcb..9a858d8ae26e 100644
--- a/drivers/net/ethernet/intel/ice/ice_ethtool.c
+++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c
@@ -345,6 +345,100 @@ static const struct ice_priv_flag ice_gstrings_priv_flags[] = {
#define ICE_PRIV_FLAG_ARRAY_SIZE ARRAY_SIZE(ice_gstrings_priv_flags)
+static const u32 ice_adv_lnk_speed_100[] __initconst = {
+ ETHTOOL_LINK_MODE_100baseT_Full_BIT,
+};
+
+static const u32 ice_adv_lnk_speed_1000[] __initconst = {
+ ETHTOOL_LINK_MODE_1000baseX_Full_BIT,
+ ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
+ ETHTOOL_LINK_MODE_1000baseKX_Full_BIT,
+};
+
+static const u32 ice_adv_lnk_speed_2500[] __initconst = {
+ ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
+ ETHTOOL_LINK_MODE_2500baseX_Full_BIT,
+};
+
+static const u32 ice_adv_lnk_speed_5000[] __initconst = {
+ ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
+};
+
+static const u32 ice_adv_lnk_speed_10000[] __initconst = {
+ ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
+ ETHTOOL_LINK_MODE_10000baseKR_Full_BIT,
+ ETHTOOL_LINK_MODE_10000baseSR_Full_BIT,
+ ETHTOOL_LINK_MODE_10000baseLR_Full_BIT,
+};
+
+static const u32 ice_adv_lnk_speed_25000[] __initconst = {
+ ETHTOOL_LINK_MODE_25000baseCR_Full_BIT,
+ ETHTOOL_LINK_MODE_25000baseSR_Full_BIT,
+ ETHTOOL_LINK_MODE_25000baseKR_Full_BIT,
+};
+
+static const u32 ice_adv_lnk_speed_40000[] __initconst = {
+ ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT,
+ ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT,
+ ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT,
+ ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT,
+};
+
+static const u32 ice_adv_lnk_speed_50000[] __initconst = {
+ ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT,
+ ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT,
+ ETHTOOL_LINK_MODE_50000baseSR2_Full_BIT,
+};
+
+static const u32 ice_adv_lnk_speed_100000[] __initconst = {
+ ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT,
+ ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT,
+ ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT,
+ ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT,
+ ETHTOOL_LINK_MODE_100000baseCR2_Full_BIT,
+ ETHTOOL_LINK_MODE_100000baseSR2_Full_BIT,
+ ETHTOOL_LINK_MODE_100000baseKR2_Full_BIT,
+};
+
+struct ice_adv_lnk_speed_map {
+ __ETHTOOL_DECLARE_LINK_MODE_MASK(caps);
+ const u32 *cap_arr;
+ u16 arr_size;
+ u16 aqc_link_speed;
+};
+
+#define ICE_ADV_LNK_SPEED_MAP(value, aqc_value) \
+{ \
+ .cap_arr = ice_adv_lnk_speed_##value, \
+ .arr_size = ARRAY_SIZE(ice_adv_lnk_speed_##value),\
+ .aqc_link_speed = ICE_AQ_LINK_SPEED_##aqc_value, \
+}
+
+static struct ice_adv_lnk_speed_map ice_adv_lnk_speed_maps[] __ro_after_init = {
+ ICE_ADV_LNK_SPEED_MAP(100, 100MB),
+ ICE_ADV_LNK_SPEED_MAP(1000, 1000MB),
+ ICE_ADV_LNK_SPEED_MAP(2500, 2500MB),
+ ICE_ADV_LNK_SPEED_MAP(5000, 5GB),
+ ICE_ADV_LNK_SPEED_MAP(10000, 10GB),
+ ICE_ADV_LNK_SPEED_MAP(25000, 25GB),
+ ICE_ADV_LNK_SPEED_MAP(40000, 40GB),
+ ICE_ADV_LNK_SPEED_MAP(50000, 50GB),
+ ICE_ADV_LNK_SPEED_MAP(100000, 100GB),
+};
+
+void __init ice_adv_lnk_speed_maps_init(void)
+{
+ u32 i;
+
+ for (i = 0; i < ARRAY_SIZE(ice_adv_lnk_speed_maps); i++) {
+ struct ice_adv_lnk_speed_map *map = &ice_adv_lnk_speed_maps[i];
+
+ linkmode_set_bit_array(map->cap_arr, map->arr_size, map->caps);
+ map->cap_arr = NULL;
+ map->arr_size = 0;
+ }
+}
+
static void
__ice_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo,
struct ice_vsi *vsi)
@@ -2014,73 +2108,15 @@ ice_get_link_ksettings(struct net_device *netdev,
static u16
ice_ksettings_find_adv_link_speed(const struct ethtool_link_ksettings *ks)
{
+ const struct ice_adv_lnk_speed_map *map;
u16 adv_link_speed = 0;
+ u32 i;
- if (ethtool_link_ksettings_test_link_mode(ks, advertising,
- 100baseT_Full))
- adv_link_speed |= ICE_AQ_LINK_SPEED_100MB;
- if (ethtool_link_ksettings_test_link_mode(ks, advertising,
- 1000baseX_Full) ||
- ethtool_link_ksettings_test_link_mode(ks, advertising,
- 1000baseT_Full) ||
- ethtool_link_ksettings_test_link_mode(ks, advertising,
- 1000baseKX_Full))
- adv_link_speed |= ICE_AQ_LINK_SPEED_1000MB;
- if (ethtool_link_ksettings_test_link_mode(ks, advertising,
- 2500baseT_Full) ||
- ethtool_link_ksettings_test_link_mode(ks, advertising,
- 2500baseX_Full))
- adv_link_speed |= ICE_AQ_LINK_SPEED_2500MB;
- if (ethtool_link_ksettings_test_link_mode(ks, advertising,
- 5000baseT_Full))
- adv_link_speed |= ICE_AQ_LINK_SPEED_5GB;
- if (ethtool_link_ksettings_test_link_mode(ks, advertising,
- 10000baseT_Full) ||
- ethtool_link_ksettings_test_link_mode(ks, advertising,
- 10000baseKR_Full) ||
- ethtool_link_ksettings_test_link_mode(ks, advertising,
- 10000baseSR_Full) ||
- ethtool_link_ksettings_test_link_mode(ks, advertising,
- 10000baseLR_Full))
- adv_link_speed |= ICE_AQ_LINK_SPEED_10GB;
- if (ethtool_link_ksettings_test_link_mode(ks, advertising,
- 25000baseCR_Full) ||
- ethtool_link_ksettings_test_link_mode(ks, advertising,
- 25000baseSR_Full) ||
- ethtool_link_ksettings_test_link_mode(ks, advertising,
- 25000baseKR_Full))
- adv_link_speed |= ICE_AQ_LINK_SPEED_25GB;
- if (ethtool_link_ksettings_test_link_mode(ks, advertising,
- 40000baseCR4_Full) ||
- ethtool_link_ksettings_test_link_mode(ks, advertising,
- 40000baseSR4_Full) ||
- ethtool_link_ksettings_test_link_mode(ks, advertising,
- 40000baseLR4_Full) ||
- ethtool_link_ksettings_test_link_mode(ks, advertising,
- 40000baseKR4_Full))
- adv_link_speed |= ICE_AQ_LINK_SPEED_40GB;
- if (ethtool_link_ksettings_test_link_mode(ks, advertising,
- 50000baseCR2_Full) ||
- ethtool_link_ksettings_test_link_mode(ks, advertising,
- 50000baseKR2_Full) ||
- ethtool_link_ksettings_test_link_mode(ks, advertising,
- 50000baseSR2_Full))
- adv_link_speed |= ICE_AQ_LINK_SPEED_50GB;
- if (ethtool_link_ksettings_test_link_mode(ks, advertising,
- 100000baseCR4_Full) ||
- ethtool_link_ksettings_test_link_mode(ks, advertising,
- 100000baseSR4_Full) ||
- ethtool_link_ksettings_test_link_mode(ks, advertising,
- 100000baseLR4_ER4_Full) ||
- ethtool_link_ksettings_test_link_mode(ks, advertising,
- 100000baseKR4_Full) ||
- ethtool_link_ksettings_test_link_mode(ks, advertising,
- 100000baseCR2_Full) ||
- ethtool_link_ksettings_test_link_mode(ks, advertising,
- 100000baseSR2_Full) ||
- ethtool_link_ksettings_test_link_mode(ks, advertising,
- 100000baseKR2_Full))
- adv_link_speed |= ICE_AQ_LINK_SPEED_100GB;
+ for (i = 0; i < ARRAY_SIZE(ice_adv_lnk_speed_maps); i++) {
+ map = ice_adv_lnk_speed_maps + i;
+ if (linkmode_intersects(ks->link_modes.advertising, map->caps))
+ adv_link_speed |= map->aqc_link_speed;
+ }
return adv_link_speed;
}
diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index 356bf8884a63..ffed5543a5aa 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -5672,6 +5672,8 @@ static int __init ice_module_init(void)
pr_info("%s\n", ice_driver_string);
pr_info("%s\n", ice_copyright);
+ ice_adv_lnk_speed_maps_init();
+
ice_wq = alloc_workqueue("%s", 0, 0, KBUILD_MODNAME);
if (!ice_wq) {
pr_err("Failed to create workqueue\n");
--
2.39.2
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