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Message-ID: <20231122101545.28819-4-ivecera@redhat.com>
Date: Wed, 22 Nov 2023 11:15:43 +0100
From: Ivan Vecera <ivecera@...hat.com>
To: intel-wired-lan@...ts.osuosl.org
Cc: Jesse Brandeburg <jesse.brandeburg@...el.com>,
Tony Nguyen <anthony.l.nguyen@...el.com>,
"David S . Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
linux-kernel@...r.kernel.org,
Jacob Keller <jacob.e.keller@...el.com>,
Wojciech Drewek <wojciech.drewek@...el.com>,
Simon Horman <horms@...nel.org>,
mschmidt@...hat.com,
netdev@...r.kernel.org
Subject: [PATCH v4 3/5] i40e: Add helpers to find VSI and VEB by SEID and use them
Add two helpers i40e_(veb|vsi)_get_by_seid() to find corresponding
VEB or VSI by their SEID value and use these helpers to replace
existing open-coded loops.
Reviewed-by: Wojciech Drewek <wojciech.drewek@...el.com>
Signed-off-by: Ivan Vecera <ivecera@...hat.com>
---
drivers/net/ethernet/intel/i40e/i40e.h | 36 +++++++++
.../net/ethernet/intel/i40e/i40e_debugfs.c | 38 ++-------
drivers/net/ethernet/intel/i40e/i40e_main.c | 80 +++++++------------
3 files changed, 68 insertions(+), 86 deletions(-)
diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index 1e9266de270b..c129e86d4f8b 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -1360,4 +1360,40 @@ static inline struct i40e_pf *i40e_hw_to_pf(struct i40e_hw *hw)
struct device *i40e_hw_to_dev(struct i40e_hw *hw);
+/**
+ * i40e_pf_get_vsi_by_seid - find VSI by SEID
+ * @pf: pointer to a PF
+ * @seid: SEID of the VSI
+ **/
+static inline struct i40e_vsi *
+i40e_pf_get_vsi_by_seid(struct i40e_pf *pf, u16 seid)
+{
+ struct i40e_vsi *vsi;
+ int i;
+
+ i40e_pf_for_each_vsi(pf, i, vsi)
+ if (vsi->seid == seid)
+ return vsi;
+
+ return NULL;
+}
+
+/**
+ * i40e_pf_get_veb_by_seid - find VEB by SEID
+ * @pf: pointer to a PF
+ * @seid: SEID of the VSI
+ **/
+static inline struct i40e_veb *
+i40e_pf_get_veb_by_seid(struct i40e_pf *pf, u16 seid)
+{
+ struct i40e_veb *veb;
+ int i;
+
+ i40e_pf_for_each_veb(pf, i, veb)
+ if (veb->seid == seid)
+ return veb;
+
+ return NULL;
+}
+
#endif /* _I40E_H_ */
diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
index b236b0f93202..990a60889eef 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
@@ -24,37 +24,13 @@ enum ring_type {
**/
static struct i40e_vsi *i40e_dbg_find_vsi(struct i40e_pf *pf, int seid)
{
- struct i40e_vsi *vsi;
- int i;
-
if (seid < 0) {
dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
return NULL;
}
- i40e_pf_for_each_vsi(pf, i, vsi)
- if (vsi->seid == seid)
- return vsi;
-
- return NULL;
-}
-
-/**
- * i40e_dbg_find_veb - searches for the veb with the given seid
- * @pf: the PF structure to search for the veb
- * @seid: seid of the veb it is searching for
- **/
-static struct i40e_veb *i40e_dbg_find_veb(struct i40e_pf *pf, int seid)
-{
- struct i40e_veb *veb;
- int i;
-
- i40e_pf_for_each_veb(pf, i, veb)
- if (veb->seid == seid)
- return veb;
-
- return NULL;
+ return i40e_pf_get_vsi_by_seid(pf, seid);
}
/**************************************************************
@@ -701,7 +677,7 @@ static void i40e_dbg_dump_veb_seid(struct i40e_pf *pf, int seid)
{
struct i40e_veb *veb;
- veb = i40e_dbg_find_veb(pf, seid);
+ veb = i40e_pf_get_veb_by_seid(pf, seid);
if (!veb) {
dev_info(&pf->pdev->dev, "can't find veb %d\n", seid);
return;
@@ -853,7 +829,7 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
} else if (strncmp(cmd_buf, "add relay", 9) == 0) {
struct i40e_veb *veb;
- int uplink_seid, i;
+ int uplink_seid;
cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid);
if (cnt != 2) {
@@ -875,12 +851,8 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
goto command_write_done;
}
- i40e_pf_for_each_veb(pf, i, veb)
- if (veb->seid == uplink_seid)
- break;
-
- if (i >= I40E_MAX_VEB && uplink_seid != 0 &&
- uplink_seid != pf->mac_seid) {
+ veb = i40e_pf_get_veb_by_seid(pf, uplink_seid);
+ if (!veb && uplink_seid != 0 && uplink_seid != pf->mac_seid) {
dev_info(&pf->pdev->dev,
"add relay: relay uplink %d not found\n",
uplink_seid);
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index c410fc31a051..935c2460f060 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -13120,18 +13120,14 @@ static int i40e_ndo_bridge_setlink(struct net_device *dev,
struct i40e_pf *pf = vsi->back;
struct nlattr *attr, *br_spec;
struct i40e_veb *veb;
- int i, rem;
+ int rem;
/* Only for PF VSI for now */
if (vsi->seid != pf->vsi[pf->lan_vsi]->seid)
return -EOPNOTSUPP;
/* Find the HW bridge for PF VSI */
- i40e_pf_for_each_veb(pf, i, veb)
- if (veb->seid == vsi->uplink_seid)
- break;
- if (i == I40E_MAX_VEB)
- veb = NULL; /* No VEB found */
+ veb = i40e_pf_get_veb_by_seid(pf, vsi->uplink_seid);
br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
if (!br_spec)
@@ -13196,18 +13192,15 @@ static int i40e_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
struct i40e_netdev_priv *np = netdev_priv(dev);
struct i40e_vsi *vsi = np->vsi;
struct i40e_pf *pf = vsi->back;
- struct i40e_veb *veb = NULL;
- int i;
+ struct i40e_veb *veb;
/* Only for PF VSI for now */
if (vsi->seid != pf->vsi[pf->lan_vsi]->seid)
return -EOPNOTSUPP;
/* Find the HW bridge for the PF VSI */
- i40e_pf_for_each_veb(pf, i, veb)
- if (veb->seid == vsi->uplink_seid)
- break;
- if (i == I40E_MAX_VEB)
+ veb = i40e_pf_get_veb_by_seid(pf, vsi->uplink_seid);
+ if (!veb)
return 0;
return ndo_dflt_bridge_getlink(skb, pid, seq, dev, veb->bridge_mode,
@@ -14382,8 +14375,8 @@ struct i40e_vsi *i40e_vsi_setup(struct i40e_pf *pf, u8 type,
struct i40e_vsi *vsi = NULL;
struct i40e_veb *veb = NULL;
u16 alloc_queue_pairs;
- int ret, i;
int v_idx;
+ int ret;
/* The requested uplink_seid must be either
* - the PF's port seid
@@ -14398,18 +14391,10 @@ struct i40e_vsi *i40e_vsi_setup(struct i40e_pf *pf, u8 type,
*
* Find which uplink_seid we were given and create a new VEB if needed
*/
- i40e_pf_for_each_veb(pf, i, veb)
- if (veb->seid == uplink_seid)
- break;
- if (i == I40E_MAX_VEB)
- veb = NULL;
-
+ veb = i40e_pf_get_veb_by_seid(pf, uplink_seid);
if (!veb && uplink_seid != pf->mac_seid) {
- i40e_pf_for_each_vsi(pf, i, vsi)
- if (vsi->seid == uplink_seid)
- break;
-
- if (i == pf->num_alloc_vsi) {
+ vsi = i40e_pf_get_vsi_by_seid(pf, uplink_seid);
+ if (!vsi) {
dev_info(&pf->pdev->dev, "no such uplink_seid %d\n",
uplink_seid);
return NULL;
@@ -14437,10 +14422,8 @@ struct i40e_vsi *i40e_vsi_setup(struct i40e_pf *pf, u8 type,
}
i40e_config_bridge_mode(veb);
}
- i40e_pf_for_each_veb(pf, i, veb)
- if (veb->seid == vsi->uplink_seid)
- break;
- if (i == I40E_MAX_VEB) {
+ veb = i40e_pf_get_veb_by_seid(pf, vsi->uplink_seid);
+ if (!veb) {
dev_info(&pf->pdev->dev, "couldn't add VEB\n");
return NULL;
}
@@ -14834,8 +14817,8 @@ struct i40e_veb *i40e_veb_setup(struct i40e_pf *pf, u16 flags,
u8 enabled_tc)
{
struct i40e_veb *veb, *uplink_veb = NULL;
- struct i40e_vsi *vsi;
- int vsi_idx, veb_idx;
+ struct i40e_vsi *vsi = NULL;
+ int veb_idx;
int ret;
/* if one seid is 0, the other must be 0 to create a floating relay */
@@ -14848,23 +14831,16 @@ struct i40e_veb *i40e_veb_setup(struct i40e_pf *pf, u16 flags,
}
/* make sure there is such a vsi and uplink */
- i40e_pf_for_each_vsi(pf, vsi_idx, vsi)
- if (vsi->seid == vsi_seid)
- break;
-
- if (vsi_idx == pf->num_alloc_vsi && vsi_seid != 0) {
- dev_info(&pf->pdev->dev, "vsi seid %d not found\n",
- vsi_seid);
- return NULL;
+ if (vsi_seid) {
+ vsi = i40e_pf_get_vsi_by_seid(pf, vsi_seid);
+ if (!vsi) {
+ dev_err(&pf->pdev->dev, "vsi seid %d not found\n",
+ vsi_seid);
+ return NULL;
+ }
}
-
if (uplink_seid && uplink_seid != pf->mac_seid) {
- i40e_pf_for_each_veb(pf, veb_idx, veb) {
- if (veb->seid == uplink_seid) {
- uplink_veb = veb;
- break;
- }
- }
+ uplink_veb = i40e_pf_get_veb_by_seid(pf, uplink_seid);
if (!uplink_veb) {
dev_info(&pf->pdev->dev,
"uplink seid %d not found\n", uplink_seid);
@@ -14886,7 +14862,8 @@ struct i40e_veb *i40e_veb_setup(struct i40e_pf *pf, u16 flags,
ret = i40e_add_veb(veb, vsi);
if (ret)
goto err_veb;
- if (vsi_idx == pf->lan_vsi)
+
+ if (vsi && vsi->idx == pf->lan_vsi)
pf->lan_veb = veb->idx;
return veb;
@@ -14933,13 +14910,10 @@ static void i40e_setup_pf_switch_element(struct i40e_pf *pf,
int v;
/* find existing or else empty VEB */
- i40e_pf_for_each_veb(pf, v, veb)
- if (veb->seid == seid) {
- pf->lan_veb = v;
- break;
- }
-
- if (pf->lan_veb >= I40E_MAX_VEB) {
+ veb = i40e_pf_get_veb_by_seid(pf, seid);
+ if (veb) {
+ pf->lan_veb = veb->idx;
+ } else {
v = i40e_veb_mem_alloc(pf);
if (v < 0)
break;
--
2.41.0
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