[PATCH v5 2/5] i40e: Introduce and use macros for iterating VSIs and VEBs

From: Ivan Vecera
Date: Fri Nov 24 2023 - 10:04:11 EST

Introduce i40e_for_each_vsi() and i40e_for_each_veb() helper
macros and use them to iterate relevant arrays.

Replace pattern:
for (i = 0; i < pf->num_alloc_vsi; i++)
by:
i40e_for_each_vsi(pf, i, vsi)

and pattern:
for (i = 0; i < I40E_MAX_VEB; i++)
by
i40e_for_each_veb(pf, i, veb)

These macros also check if array item pf->vsi[i] or pf->veb[i]
are not NULL and skip such items so we can remove redundant
checks from loop bodies.

Reviewed-by: Wojciech Drewek <wojciech.drewek@xxxxxxxxx>
Signed-off-by: Ivan Vecera <ivecera@xxxxxxxxxx>
---
drivers/net/ethernet/intel/i40e/i40e.h | 56 ++-
drivers/net/ethernet/intel/i40e/i40e_dcb_nl.c | 10 +-
.../net/ethernet/intel/i40e/i40e_debugfs.c | 54 +--
drivers/net/ethernet/intel/i40e/i40e_main.c | 389 ++++++++----------
4 files changed, 264 insertions(+), 245 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index f1627ab211cd..08cea99150bc 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -686,6 +686,54 @@ struct i40e_pf {
struct list_head ddp_old_prof;
};

+/**
+ * __i40e_pf_next_vsi - get next valid VSI
+ * @pf: pointer to the PF struct
+ * @idx: pointer to start position number
+ *
+ * Find and return next non-NULL VSI pointer in pf->vsi array and
+ * updates idx position. Returns NULL if no VSI is found.
+ **/
+static __always_inline struct i40e_vsi *
+__i40e_pf_next_vsi(struct i40e_pf *pf, int *idx)
+{
+ while (*idx < pf->num_alloc_vsi) {
+ if (pf->vsi[*idx])
+ return pf->vsi[*idx];
+ (*idx)++;
+ }
+ return NULL;
+}
+
+#define i40e_pf_for_each_vsi(_pf, _i, _vsi) \
+ for (_i = 0, _vsi = __i40e_pf_next_vsi(_pf, &_i); \
+ _vsi; \
+ _i++, _vsi = __i40e_pf_next_vsi(_pf, &_i))
+
+/**
+ * __i40e_pf_next_veb - get next valid VEB
+ * @pf: pointer to the PF struct
+ * @idx: pointer to start position number
+ *
+ * Find and return next non-NULL VEB pointer in pf->veb array and
+ * updates idx position. Returns NULL if no VEB is found.
+ **/
+static __always_inline struct i40e_veb *
+__i40e_pf_next_veb(struct i40e_pf *pf, int *idx)
+{
+ while (*idx < I40E_MAX_VEB) {
+ if (pf->veb[*idx])
+ return pf->veb[*idx];
+ (*idx)++;
+ }
+ return NULL;
+}
+
+#define i40e_pf_for_each_veb(_pf, _i, _veb) \
+ for (_i = 0, _veb = __i40e_pf_next_veb(_pf, &_i); \
+ _veb; \
+ _i++, _veb = __i40e_pf_next_veb(_pf, &_i))
+
/**
* i40e_mac_to_hkey - Convert a 6-byte MAC Address to a u64 hash key
* @macaddr: the MAC Address as the base key
@@ -1120,14 +1168,12 @@ struct i40e_vsi *i40e_find_vsi_from_id(struct i40e_pf *pf, u16 id);
static inline struct i40e_vsi *
i40e_find_vsi_by_type(struct i40e_pf *pf, u16 type)
{
+ struct i40e_vsi *vsi;
int i;

- for (i = 0; i < pf->num_alloc_vsi; i++) {
- struct i40e_vsi *vsi = pf->vsi[i];
-
- if (vsi && vsi->type == type)
+ i40e_pf_for_each_vsi(pf, i, vsi)
+ if (vsi->type == type)
return vsi;
- }

return NULL;
}
diff --git a/drivers/net/ethernet/intel/i40e/i40e_dcb_nl.c b/drivers/net/ethernet/intel/i40e/i40e_dcb_nl.c
index 4721845fda6e..57020effd2c7 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_dcb_nl.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_dcb_nl.c
@@ -948,16 +948,16 @@ static int i40e_dcbnl_vsi_del_app(struct i40e_vsi *vsi,
static void i40e_dcbnl_del_app(struct i40e_pf *pf,
struct i40e_dcb_app_priority_table *app)
{
+ struct i40e_vsi *vsi;
int v, err;

- for (v = 0; v < pf->num_alloc_vsi; v++) {
- if (pf->vsi[v] && pf->vsi[v]->netdev) {
- err = i40e_dcbnl_vsi_del_app(pf->vsi[v], app);
+ i40e_pf_for_each_vsi(pf, v, vsi)
+ if (vsi->netdev) {
+ err = i40e_dcbnl_vsi_del_app(vsi, app);
dev_dbg(&pf->pdev->dev, "Deleting app for VSI seid=%d err=%d sel=%d proto=0x%x prio=%d\n",
- pf->vsi[v]->seid, err, app->selector,
+ vsi->seid, err, app->selector,
app->protocolid, app->priority);
}
- }
}

/**
diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
index ef70ddbe9c2f..b236b0f93202 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
@@ -24,14 +24,18 @@ 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)
+ if (seid < 0) {
dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
- else
- for (i = 0; i < pf->num_alloc_vsi; i++)
- if (pf->vsi[i] && (pf->vsi[i]->seid == seid))
- return pf->vsi[i];
+
+ return NULL;
+ }
+
+ i40e_pf_for_each_vsi(pf, i, vsi)
+ if (vsi->seid == seid)
+ return vsi;

return NULL;
}
@@ -43,11 +47,13 @@ static struct i40e_vsi *i40e_dbg_find_vsi(struct i40e_pf *pf, int seid)
**/
static struct i40e_veb *i40e_dbg_find_veb(struct i40e_pf *pf, int seid)
{
+ struct i40e_veb *veb;
int i;

- for (i = 0; i < I40E_MAX_VEB; i++)
- if (pf->veb[i] && pf->veb[i]->seid == seid)
- return pf->veb[i];
+ i40e_pf_for_each_veb(pf, i, veb)
+ if (veb->seid == seid)
+ return veb;
+
return NULL;
}

@@ -653,12 +659,11 @@ static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n,
**/
static void i40e_dbg_dump_vsi_no_seid(struct i40e_pf *pf)
{
+ struct i40e_vsi *vsi;
int i;

- for (i = 0; i < pf->num_alloc_vsi; i++)
- if (pf->vsi[i])
- dev_info(&pf->pdev->dev, "dump vsi[%d]: %d\n",
- i, pf->vsi[i]->seid);
+ i40e_pf_for_each_vsi(pf, i, vsi)
+ dev_info(&pf->pdev->dev, "dump vsi[%d]: %d\n", i, vsi->seid);
}

/**
@@ -718,11 +723,8 @@ static void i40e_dbg_dump_veb_all(struct i40e_pf *pf)
struct i40e_veb *veb;
int i;

- for (i = 0; i < I40E_MAX_VEB; i++) {
- veb = pf->veb[i];
- if (veb)
- i40e_dbg_dump_veb_seid(pf, veb->seid);
- }
+ i40e_pf_for_each_veb(pf, i, veb)
+ i40e_dbg_dump_veb_seid(pf, veb->seid);
}

/**
@@ -873,9 +875,10 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
goto command_write_done;
}

- for (i = 0; i < I40E_MAX_VEB; i++)
- if (pf->veb[i] && pf->veb[i]->seid == uplink_seid)
+ 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) {
dev_info(&pf->pdev->dev,
@@ -892,7 +895,9 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
dev_info(&pf->pdev->dev, "add relay failed\n");

} else if (strncmp(cmd_buf, "del relay", 9) == 0) {
+ struct i40e_veb *veb;
int i;
+
cnt = sscanf(&cmd_buf[9], "%i", &veb_seid);
if (cnt != 1) {
dev_info(&pf->pdev->dev,
@@ -906,9 +911,10 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
}

/* find the veb */
- for (i = 0; i < I40E_MAX_VEB; i++)
- if (pf->veb[i] && pf->veb[i]->seid == veb_seid)
+ i40e_pf_for_each_veb(pf, i, veb)
+ if (veb->seid == veb_seid)
break;
+
if (i >= I40E_MAX_VEB) {
dev_info(&pf->pdev->dev,
"del relay: relay %d not found\n", veb_seid);
@@ -916,7 +922,7 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
}

dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid);
- i40e_veb_release(pf->veb[i]);
+ i40e_veb_release(veb);
} else if (strncmp(cmd_buf, "add pvid", 8) == 0) {
unsigned int v;
int ret;
@@ -1251,8 +1257,8 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
if (cnt == 0) {
int i;

- for (i = 0; i < pf->num_alloc_vsi; i++)
- i40e_vsi_reset_stats(pf->vsi[i]);
+ i40e_pf_for_each_vsi(pf, i, vsi)
+ i40e_vsi_reset_stats(vsi);
dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n");
} else if (cnt == 1) {
vsi = i40e_dbg_find_vsi(pf, vsi_seid);
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 90966878333c..3a973a92779f 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -304,11 +304,12 @@ static int i40e_put_lump(struct i40e_lump_tracking *pile, u16 index, u16 id)
**/
struct i40e_vsi *i40e_find_vsi_from_id(struct i40e_pf *pf, u16 id)
{
+ struct i40e_vsi *vsi;
int i;

- for (i = 0; i < pf->num_alloc_vsi; i++)
- if (pf->vsi[i] && (pf->vsi[i]->id == id))
- return pf->vsi[i];
+ i40e_pf_for_each_vsi(pf, i, vsi)
+ if (vsi->id == id)
+ return vsi;

return NULL;
}
@@ -546,24 +547,19 @@ void i40e_vsi_reset_stats(struct i40e_vsi *vsi)
**/
void i40e_pf_reset_stats(struct i40e_pf *pf)
{
+ struct i40e_veb *veb;
int i;

memset(&pf->stats, 0, sizeof(pf->stats));
memset(&pf->stats_offsets, 0, sizeof(pf->stats_offsets));
pf->stat_offsets_loaded = false;

- for (i = 0; i < I40E_MAX_VEB; i++) {
- if (pf->veb[i]) {
- memset(&pf->veb[i]->stats, 0,
- sizeof(pf->veb[i]->stats));
- memset(&pf->veb[i]->stats_offsets, 0,
- sizeof(pf->veb[i]->stats_offsets));
- memset(&pf->veb[i]->tc_stats, 0,
- sizeof(pf->veb[i]->tc_stats));
- memset(&pf->veb[i]->tc_stats_offsets, 0,
- sizeof(pf->veb[i]->tc_stats_offsets));
- pf->veb[i]->stat_offsets_loaded = false;
- }
+ i40e_pf_for_each_veb(pf, i, veb) {
+ memset(&veb->stats, 0, sizeof(veb->stats));
+ memset(&veb->stats_offsets, 0, sizeof(veb->stats_offsets));
+ memset(&veb->tc_stats, 0, sizeof(veb->tc_stats));
+ memset(&veb->tc_stats_offsets, 0, sizeof(veb->tc_stats_offsets));
+ veb->stat_offsets_loaded = false;
}
pf->hw_csum_rx_error = 0;
}
@@ -2875,6 +2871,7 @@ int i40e_sync_vsi_filters(struct i40e_vsi *vsi)
**/
static void i40e_sync_filters_subtask(struct i40e_pf *pf)
{
+ struct i40e_vsi *vsi;
int v;

if (!pf)
@@ -2886,11 +2883,10 @@ static void i40e_sync_filters_subtask(struct i40e_pf *pf)
return;
}

- for (v = 0; v < pf->num_alloc_vsi; v++) {
- if (pf->vsi[v] &&
- (pf->vsi[v]->flags & I40E_VSI_FLAG_FILTER_CHANGED) &&
- !test_bit(__I40E_VSI_RELEASING, pf->vsi[v]->state)) {
- int ret = i40e_sync_vsi_filters(pf->vsi[v]);
+ i40e_pf_for_each_vsi(pf, v, vsi) {
+ if ((vsi->flags & I40E_VSI_FLAG_FILTER_CHANGED) &&
+ !test_bit(__I40E_VSI_RELEASING, vsi->state)) {
+ int ret = i40e_sync_vsi_filters(vsi);

if (ret) {
/* come back and try again later */
@@ -5162,6 +5158,7 @@ static void i40e_reset_interrupt_capability(struct i40e_pf *pf)
**/
static void i40e_clear_interrupt_scheme(struct i40e_pf *pf)
{
+ struct i40e_vsi *vsi;
int i;

if (test_bit(__I40E_MISC_IRQ_REQUESTED, pf->state))
@@ -5171,9 +5168,10 @@ static void i40e_clear_interrupt_scheme(struct i40e_pf *pf)
I40E_IWARP_IRQ_PILE_ID);

i40e_put_lump(pf->irq_pile, 0, I40E_PILE_VALID_BIT-1);
- for (i = 0; i < pf->num_alloc_vsi; i++)
- if (pf->vsi[i])
- i40e_vsi_free_q_vectors(pf->vsi[i]);
+
+ i40e_pf_for_each_vsi(pf, i, vsi)
+ i40e_vsi_free_q_vectors(vsi);
+
i40e_reset_interrupt_capability(pf);
}

@@ -5270,12 +5268,11 @@ static void i40e_unquiesce_vsi(struct i40e_vsi *vsi)
**/
static void i40e_pf_quiesce_all_vsi(struct i40e_pf *pf)
{
+ struct i40e_vsi *vsi;
int v;

- for (v = 0; v < pf->num_alloc_vsi; v++) {
- if (pf->vsi[v])
- i40e_quiesce_vsi(pf->vsi[v]);
- }
+ i40e_pf_for_each_vsi(pf, v, vsi)
+ i40e_quiesce_vsi(vsi);
}

/**
@@ -5284,12 +5281,11 @@ static void i40e_pf_quiesce_all_vsi(struct i40e_pf *pf)
**/
static void i40e_pf_unquiesce_all_vsi(struct i40e_pf *pf)
{
+ struct i40e_vsi *vsi;
int v;

- for (v = 0; v < pf->num_alloc_vsi; v++) {
- if (pf->vsi[v])
- i40e_unquiesce_vsi(pf->vsi[v]);
- }
+ i40e_pf_for_each_vsi(pf, v, vsi)
+ i40e_unquiesce_vsi(vsi);
}

/**
@@ -5350,14 +5346,13 @@ int i40e_vsi_wait_queues_disabled(struct i40e_vsi *vsi)
**/
static int i40e_pf_wait_queues_disabled(struct i40e_pf *pf)
{
+ struct i40e_vsi *vsi;
int v, ret = 0;

- for (v = 0; v < pf->num_alloc_vsi; v++) {
- if (pf->vsi[v]) {
- ret = i40e_vsi_wait_queues_disabled(pf->vsi[v]);
- if (ret)
- break;
- }
+ i40e_pf_for_each_vsi(pf, v, vsi) {
+ ret = i40e_vsi_wait_queues_disabled(vsi);
+ if (ret)
+ break;
}

return ret;
@@ -6774,32 +6769,29 @@ int i40e_veb_config_tc(struct i40e_veb *veb, u8 enabled_tc)
**/
static void i40e_dcb_reconfigure(struct i40e_pf *pf)
{
+ struct i40e_vsi *vsi;
+ struct i40e_veb *veb;
u8 tc_map = 0;
int ret;
- u8 v;
+ int v;

/* Enable the TCs available on PF to all VEBs */
tc_map = i40e_pf_get_tc_map(pf);
if (tc_map == I40E_DEFAULT_TRAFFIC_CLASS)
return;

- for (v = 0; v < I40E_MAX_VEB; v++) {
- if (!pf->veb[v])
- continue;
- ret = i40e_veb_config_tc(pf->veb[v], tc_map);
+ i40e_pf_for_each_veb(pf, v, veb) {
+ ret = i40e_veb_config_tc(veb, tc_map);
if (ret) {
dev_info(&pf->pdev->dev,
"Failed configuring TC for VEB seid=%d\n",
- pf->veb[v]->seid);
+ veb->seid);
/* Will try to configure as many components */
}
}

/* Update each VSI */
- for (v = 0; v < pf->num_alloc_vsi; v++) {
- if (!pf->vsi[v])
- continue;
-
+ i40e_pf_for_each_vsi(pf, v, vsi) {
/* - Enable all TCs for the LAN VSI
* - For all others keep them at TC0 for now
*/
@@ -6808,17 +6800,17 @@ static void i40e_dcb_reconfigure(struct i40e_pf *pf)
else
tc_map = I40E_DEFAULT_TRAFFIC_CLASS;

- ret = i40e_vsi_config_tc(pf->vsi[v], tc_map);
+ ret = i40e_vsi_config_tc(vsi, tc_map);
if (ret) {
dev_info(&pf->pdev->dev,
"Failed configuring TC for VSI seid=%d\n",
- pf->vsi[v]->seid);
+ vsi->seid);
/* Will try to configure as many components */
} else {
/* Re-configure VSI vectors based on updated TC map */
- i40e_vsi_map_rings_to_vectors(pf->vsi[v]);
- if (pf->vsi[v]->netdev)
- i40e_dcbnl_set_all(pf->vsi[v]);
+ i40e_vsi_map_rings_to_vectors(vsi);
+ if (vsi->netdev)
+ i40e_dcbnl_set_all(vsi);
}
}
}
@@ -9253,7 +9245,9 @@ int i40e_close(struct net_device *netdev)
**/
void i40e_do_reset(struct i40e_pf *pf, u32 reset_flags, bool lock_acquired)
{
+ struct i40e_vsi *vsi;
u32 val;
+ int i;

/* do the biggest reset indicated */
if (reset_flags & BIT_ULL(__I40E_GLOBAL_RESET_REQUESTED)) {
@@ -9309,29 +9303,20 @@ void i40e_do_reset(struct i40e_pf *pf, u32 reset_flags, bool lock_acquired)
"FW LLDP is enabled\n");

} else if (reset_flags & BIT_ULL(__I40E_REINIT_REQUESTED)) {
- int v;
-
/* Find the VSI(s) that requested a re-init */
- dev_info(&pf->pdev->dev,
- "VSI reinit requested\n");
- for (v = 0; v < pf->num_alloc_vsi; v++) {
- struct i40e_vsi *vsi = pf->vsi[v];
+ dev_info(&pf->pdev->dev, "VSI reinit requested\n");

- if (vsi != NULL &&
- test_and_clear_bit(__I40E_VSI_REINIT_REQUESTED,
+ i40e_pf_for_each_vsi(pf, i, vsi) {
+ if (test_and_clear_bit(__I40E_VSI_REINIT_REQUESTED,
vsi->state))
- i40e_vsi_reinit_locked(pf->vsi[v]);
+ i40e_vsi_reinit_locked(vsi);
}
} else if (reset_flags & BIT_ULL(__I40E_DOWN_REQUESTED)) {
- int v;
-
/* Find the VSI(s) that needs to be brought down */
dev_info(&pf->pdev->dev, "VSI down requested\n");
- for (v = 0; v < pf->num_alloc_vsi; v++) {
- struct i40e_vsi *vsi = pf->vsi[v];

- if (vsi != NULL &&
- test_and_clear_bit(__I40E_VSI_DOWN_REQUESTED,
+ i40e_pf_for_each_vsi(pf, i, vsi) {
+ if (test_and_clear_bit(__I40E_VSI_DOWN_REQUESTED,
vsi->state)) {
set_bit(__I40E_VSI_DOWN, vsi->state);
i40e_down(vsi);
@@ -9886,6 +9871,8 @@ static void i40e_vsi_link_event(struct i40e_vsi *vsi, bool link_up)
**/
static void i40e_veb_link_event(struct i40e_veb *veb, bool link_up)
{
+ struct i40e_veb *veb_it;
+ struct i40e_vsi *vsi;
struct i40e_pf *pf;
int i;

@@ -9894,14 +9881,14 @@ static void i40e_veb_link_event(struct i40e_veb *veb, bool link_up)
pf = veb->pf;

/* depth first... */
- for (i = 0; i < I40E_MAX_VEB; i++)
- if (pf->veb[i] && (pf->veb[i]->uplink_seid == veb->seid))
- i40e_veb_link_event(pf->veb[i], link_up);
+ i40e_pf_for_each_veb(pf, i, veb_it)
+ if (veb_it->uplink_seid == veb->seid)
+ i40e_veb_link_event(veb_it, link_up);

/* ... now the local VSIs */
- for (i = 0; i < pf->num_alloc_vsi; i++)
- if (pf->vsi[i] && (pf->vsi[i]->uplink_seid == veb->seid))
- i40e_vsi_link_event(pf->vsi[i], link_up);
+ i40e_pf_for_each_vsi(pf, i, vsi)
+ if (vsi->uplink_seid == veb->seid)
+ i40e_vsi_link_event(vsi, link_up);
}

/**
@@ -9995,6 +9982,8 @@ static void i40e_link_event(struct i40e_pf *pf)
**/
static void i40e_watchdog_subtask(struct i40e_pf *pf)
{
+ struct i40e_vsi *vsi;
+ struct i40e_veb *veb;
int i;

/* if interface is down do nothing */
@@ -10016,15 +10005,14 @@ static void i40e_watchdog_subtask(struct i40e_pf *pf)
/* Update the stats for active netdevs so the network stack
* can look at updated numbers whenever it cares to
*/
- for (i = 0; i < pf->num_alloc_vsi; i++)
- if (pf->vsi[i] && pf->vsi[i]->netdev)
- i40e_update_stats(pf->vsi[i]);
+ i40e_pf_for_each_vsi(pf, i, vsi)
+ if (vsi->netdev)
+ i40e_update_stats(vsi);

if (test_bit(I40E_FLAG_VEB_STATS_ENA, pf->flags)) {
/* Update the stats for the active switching components */
- for (i = 0; i < I40E_MAX_VEB; i++)
- if (pf->veb[i])
- i40e_update_veb_stats(pf->veb[i]);
+ i40e_pf_for_each_veb(pf, i, veb)
+ i40e_update_veb_stats(veb);
}

i40e_ptp_rx_hang(pf);
@@ -10387,18 +10375,18 @@ static int i40e_reconstitute_veb(struct i40e_veb *veb)
{
struct i40e_vsi *ctl_vsi = NULL;
struct i40e_pf *pf = veb->pf;
- int v, veb_idx;
- int ret;
+ struct i40e_veb *veb_it;
+ struct i40e_vsi *vsi;
+ int v, ret;

/* build VSI that owns this VEB, temporarily attached to base VEB */
- for (v = 0; v < pf->num_alloc_vsi && !ctl_vsi; v++) {
- if (pf->vsi[v] &&
- pf->vsi[v]->veb_idx == veb->idx &&
- pf->vsi[v]->flags & I40E_VSI_FLAG_VEB_OWNER) {
- ctl_vsi = pf->vsi[v];
+ i40e_pf_for_each_vsi(pf, v, vsi)
+ if (vsi->veb_idx == veb->idx &&
+ vsi->flags & I40E_VSI_FLAG_VEB_OWNER) {
+ ctl_vsi = vsi;
break;
}
- }
+
if (!ctl_vsi) {
dev_info(&pf->pdev->dev,
"missing owner VSI for veb_idx %d\n", veb->idx);
@@ -10428,13 +10416,11 @@ static int i40e_reconstitute_veb(struct i40e_veb *veb)
i40e_config_bridge_mode(veb);

/* create the remaining VSIs attached to this VEB */
- for (v = 0; v < pf->num_alloc_vsi; v++) {
- if (!pf->vsi[v] || pf->vsi[v] == ctl_vsi)
+ i40e_pf_for_each_vsi(pf, v, vsi) {
+ if (vsi == ctl_vsi)
continue;

- if (pf->vsi[v]->veb_idx == veb->idx) {
- struct i40e_vsi *vsi = pf->vsi[v];
-
+ if (vsi->veb_idx == veb->idx) {
vsi->uplink_seid = veb->seid;
ret = i40e_add_vsi(vsi);
if (ret) {
@@ -10448,10 +10434,10 @@ static int i40e_reconstitute_veb(struct i40e_veb *veb)
}

/* create any VEBs attached to this VEB - RECURSION */
- for (veb_idx = 0; veb_idx < I40E_MAX_VEB; veb_idx++) {
- if (pf->veb[veb_idx] && pf->veb[veb_idx]->veb_idx == veb->idx) {
- pf->veb[veb_idx]->uplink_seid = veb->seid;
- ret = i40e_reconstitute_veb(pf->veb[veb_idx]);
+ i40e_pf_for_each_veb(pf, v, veb_it) {
+ if (veb_it->veb_idx == veb->idx) {
+ veb_it->uplink_seid = veb->seid;
+ ret = i40e_reconstitute_veb(veb_it);
if (ret)
break;
}
@@ -10725,6 +10711,7 @@ static void i40e_clean_xps_state(struct i40e_vsi *vsi)
static void i40e_prep_for_reset(struct i40e_pf *pf)
{
struct i40e_hw *hw = &pf->hw;
+ struct i40e_vsi *vsi;
int ret = 0;
u32 v;

@@ -10738,11 +10725,9 @@ static void i40e_prep_for_reset(struct i40e_pf *pf)
/* quiesce the VSIs and their queues that are not already DOWN */
i40e_pf_quiesce_all_vsi(pf);

- for (v = 0; v < pf->num_alloc_vsi; v++) {
- if (pf->vsi[v]) {
- i40e_clean_xps_state(pf->vsi[v]);
- pf->vsi[v]->seid = 0;
- }
+ i40e_pf_for_each_vsi(pf, v, vsi) {
+ i40e_clean_xps_state(vsi);
+ vsi->seid = 0;
}

i40e_shutdown_adminq(&pf->hw);
@@ -10856,6 +10841,7 @@ static void i40e_rebuild(struct i40e_pf *pf, bool reinit, bool lock_acquired)
const bool is_recovery_mode_reported = i40e_check_recovery_mode(pf);
struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
struct i40e_hw *hw = &pf->hw;
+ struct i40e_veb *veb;
int ret = EBADE;
u32 val;
int v;
@@ -10998,14 +10984,10 @@ static void i40e_rebuild(struct i40e_pf *pf, bool reinit, bool lock_acquired)
if (vsi->uplink_seid != pf->mac_seid) {
dev_dbg(&pf->pdev->dev, "attempting to rebuild switch\n");
/* find the one VEB connected to the MAC, and find orphans */
- for (v = 0; v < I40E_MAX_VEB; v++) {
- if (!pf->veb[v])
- continue;
-
- if (pf->veb[v]->uplink_seid == pf->mac_seid ||
- pf->veb[v]->uplink_seid == 0) {
- ret = i40e_reconstitute_veb(pf->veb[v]);
-
+ i40e_pf_for_each_veb(pf, v, veb) {
+ if (veb->uplink_seid == pf->mac_seid ||
+ veb->uplink_seid == 0) {
+ ret = i40e_reconstitute_veb(veb);
if (!ret)
continue;

@@ -11015,13 +10997,13 @@ static void i40e_rebuild(struct i40e_pf *pf, bool reinit, bool lock_acquired)
* If orphan failed, we'll report the error
* but try to keep going.
*/
- if (pf->veb[v]->uplink_seid == pf->mac_seid) {
+ if (veb->uplink_seid == pf->mac_seid) {
dev_info(&pf->pdev->dev,
"rebuild of switch failed: %d, will try to set up simple PF connection\n",
ret);
vsi->uplink_seid = pf->mac_seid;
break;
- } else if (pf->veb[v]->uplink_seid == 0) {
+ } else if (veb->uplink_seid == 0) {
dev_info(&pf->pdev->dev,
"rebuild of orphan VEB failed: %d\n",
ret);
@@ -12112,6 +12094,7 @@ static int i40e_init_interrupt_scheme(struct i40e_pf *pf)
*/
static int i40e_restore_interrupt_scheme(struct i40e_pf *pf)
{
+ struct i40e_vsi *vsi;
int err, i;

/* We cleared the MSI and MSI-X flags when disabling the old interrupt
@@ -12128,13 +12111,12 @@ static int i40e_restore_interrupt_scheme(struct i40e_pf *pf)
/* Now that we've re-acquired IRQs, we need to remap the vectors and
* rings together again.
*/
- for (i = 0; i < pf->num_alloc_vsi; i++) {
- if (pf->vsi[i]) {
- err = i40e_vsi_alloc_q_vectors(pf->vsi[i]);
- if (err)
- goto err_unwind;
- i40e_vsi_map_rings_to_vectors(pf->vsi[i]);
- }
+ i40e_pf_for_each_vsi(pf, i, vsi) {
+ err = i40e_vsi_alloc_q_vectors(vsi);
+ if (err)
+ goto err_unwind;
+
+ i40e_vsi_map_rings_to_vectors(vsi);
}

err = i40e_setup_misc_vector(pf);
@@ -13136,8 +13118,8 @@ static int i40e_ndo_bridge_setlink(struct net_device *dev,
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;
struct nlattr *attr, *br_spec;
+ struct i40e_veb *veb;
int i, rem;

/* Only for PF VSI for now */
@@ -13145,10 +13127,11 @@ static int i40e_ndo_bridge_setlink(struct net_device *dev,
return -EOPNOTSUPP;

/* Find the HW bridge for PF VSI */
- for (i = 0; i < I40E_MAX_VEB && !veb; i++) {
- if (pf->veb[i] && pf->veb[i]->seid == vsi->uplink_seid)
- veb = pf->veb[i];
- }
+ 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 */

br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
if (!br_spec)
@@ -13221,12 +13204,10 @@ static int i40e_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
return -EOPNOTSUPP;

/* Find the HW bridge for the PF VSI */
- for (i = 0; i < I40E_MAX_VEB && !veb; i++) {
- if (pf->veb[i] && pf->veb[i]->seid == vsi->uplink_seid)
- veb = pf->veb[i];
- }
-
- if (!veb)
+ i40e_pf_for_each_veb(pf, i, veb)
+ if (veb->seid == vsi->uplink_seid)
+ break;
+ if (i == I40E_MAX_VEB)
return 0;

return ndo_dflt_bridge_getlink(skb, pid, seq, dev, veb->bridge_mode,
@@ -14157,9 +14138,9 @@ static int i40e_add_vsi(struct i40e_vsi *vsi)
**/
int i40e_vsi_release(struct i40e_vsi *vsi)
{
+ struct i40e_veb *veb, *veb_it;
struct i40e_mac_filter *f;
struct hlist_node *h;
- struct i40e_veb *veb = NULL;
struct i40e_pf *pf;
u16 uplink_seid;
int i, n, bkt;
@@ -14229,20 +14210,18 @@ int i40e_vsi_release(struct i40e_vsi *vsi)
* the orphan VEBs yet. We'll wait for an explicit remove request
* from up the network stack.
*/
- for (n = 0, i = 0; i < pf->num_alloc_vsi; i++) {
- if (pf->vsi[i] &&
- pf->vsi[i]->uplink_seid == uplink_seid &&
- (pf->vsi[i]->flags & I40E_VSI_FLAG_VEB_OWNER) == 0) {
+ n = 0;
+ i40e_pf_for_each_vsi(pf, i, vsi)
+ if (vsi->uplink_seid == uplink_seid &&
+ (vsi->flags & I40E_VSI_FLAG_VEB_OWNER) == 0)
n++; /* count the VSIs */
- }
- }
- for (i = 0; i < I40E_MAX_VEB; i++) {
- if (!pf->veb[i])
- continue;
- if (pf->veb[i]->uplink_seid == uplink_seid)
+
+ veb = NULL;
+ i40e_pf_for_each_veb(pf, i, veb_it) {
+ if (veb_it->uplink_seid == uplink_seid)
n++; /* count the VEBs */
- if (pf->veb[i]->seid == uplink_seid)
- veb = pf->veb[i];
+ if (veb_it->seid == uplink_seid)
+ veb = veb_it;
}
if (n == 0 && veb && veb->uplink_seid != 0)
i40e_veb_release(veb);
@@ -14419,22 +14398,18 @@ 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
*/
- for (i = 0; i < I40E_MAX_VEB; i++) {
- if (pf->veb[i] && pf->veb[i]->seid == uplink_seid) {
- veb = pf->veb[i];
+ i40e_pf_for_each_veb(pf, i, veb)
+ if (veb->seid == uplink_seid)
break;
- }
- }
+ if (i == I40E_MAX_VEB)
+ veb = NULL;

if (!veb && uplink_seid != pf->mac_seid) {
-
- for (i = 0; i < pf->num_alloc_vsi; i++) {
- if (pf->vsi[i] && pf->vsi[i]->seid == uplink_seid) {
- vsi = pf->vsi[i];
+ i40e_pf_for_each_vsi(pf, i, vsi)
+ if (vsi->seid == uplink_seid)
break;
- }
- }
- if (!vsi) {
+
+ if (i == pf->num_alloc_vsi) {
dev_info(&pf->pdev->dev, "no such uplink_seid %d\n",
uplink_seid);
return NULL;
@@ -14462,11 +14437,10 @@ struct i40e_vsi *i40e_vsi_setup(struct i40e_pf *pf, u8 type,
}
i40e_config_bridge_mode(veb);
}
- for (i = 0; i < I40E_MAX_VEB && !veb; i++) {
- if (pf->veb[i] && pf->veb[i]->seid == vsi->uplink_seid)
- veb = pf->veb[i];
- }
- if (!veb) {
+ i40e_pf_for_each_veb(pf, i, veb)
+ if (veb->seid == vsi->uplink_seid)
+ break;
+ if (i == I40E_MAX_VEB) {
dev_info(&pf->pdev->dev, "couldn't add VEB\n");
return NULL;
}
@@ -14695,29 +14669,24 @@ static void i40e_switch_branch_release(struct i40e_veb *branch)
struct i40e_pf *pf = branch->pf;
u16 branch_seid = branch->seid;
u16 veb_idx = branch->idx;
+ struct i40e_vsi *vsi;
+ struct i40e_veb *veb;
int i;

/* release any VEBs on this VEB - RECURSION */
- for (i = 0; i < I40E_MAX_VEB; i++) {
- if (!pf->veb[i])
- continue;
- if (pf->veb[i]->uplink_seid == branch->seid)
- i40e_switch_branch_release(pf->veb[i]);
- }
+ i40e_pf_for_each_veb(pf, i, veb)
+ if (veb->uplink_seid == branch->seid)
+ i40e_switch_branch_release(veb);

/* Release the VSIs on this VEB, but not the owner VSI.
*
* NOTE: Removing the last VSI on a VEB has the SIDE EFFECT of removing
* the VEB itself, so don't use (*branch) after this loop.
*/
- for (i = 0; i < pf->num_alloc_vsi; i++) {
- if (!pf->vsi[i])
- continue;
- if (pf->vsi[i]->uplink_seid == branch_seid &&
- (pf->vsi[i]->flags & I40E_VSI_FLAG_VEB_OWNER) == 0) {
- i40e_vsi_release(pf->vsi[i]);
- }
- }
+ i40e_pf_for_each_vsi(pf, i, vsi)
+ if (vsi->uplink_seid == branch_seid &&
+ (vsi->flags & I40E_VSI_FLAG_VEB_OWNER) == 0)
+ i40e_vsi_release(vsi);

/* There's one corner case where the VEB might not have been
* removed, so double check it here and remove it if needed.
@@ -14755,19 +14724,19 @@ static void i40e_veb_clear(struct i40e_veb *veb)
**/
void i40e_veb_release(struct i40e_veb *veb)
{
- struct i40e_vsi *vsi = NULL;
+ struct i40e_vsi *vsi, *vsi_it;
struct i40e_pf *pf;
int i, n = 0;

pf = veb->pf;

/* find the remaining VSI and check for extras */
- for (i = 0; i < pf->num_alloc_vsi; i++) {
- if (pf->vsi[i] && pf->vsi[i]->uplink_seid == veb->seid) {
+ i40e_pf_for_each_vsi(pf, i, vsi_it)
+ if (vsi_it->uplink_seid == veb->seid) {
+ vsi = vsi_it;
n++;
- vsi = pf->vsi[i];
}
- }
+
if (n != 1) {
dev_info(&pf->pdev->dev,
"can't remove VEB %d with %d VSIs left\n",
@@ -14865,6 +14834,7 @@ 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;
int ret;

@@ -14878,9 +14848,10 @@ struct i40e_veb *i40e_veb_setup(struct i40e_pf *pf, u16 flags,
}

/* make sure there is such a vsi and uplink */
- for (vsi_idx = 0; vsi_idx < pf->num_alloc_vsi; vsi_idx++)
- if (pf->vsi[vsi_idx] && pf->vsi[vsi_idx]->seid == vsi_seid)
+ 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);
@@ -14888,10 +14859,9 @@ struct i40e_veb *i40e_veb_setup(struct i40e_pf *pf, u16 flags,
}

if (uplink_seid && uplink_seid != pf->mac_seid) {
- for (veb_idx = 0; veb_idx < I40E_MAX_VEB; veb_idx++) {
- if (pf->veb[veb_idx] &&
- pf->veb[veb_idx]->seid == uplink_seid) {
- uplink_veb = pf->veb[veb_idx];
+ i40e_pf_for_each_veb(pf, veb_idx, veb) {
+ if (veb->seid == uplink_seid) {
+ uplink_veb = veb;
break;
}
}
@@ -14913,7 +14883,7 @@ struct i40e_veb *i40e_veb_setup(struct i40e_pf *pf, u16 flags,
veb->enabled_tc = (enabled_tc ? enabled_tc : 0x1);

/* create the VEB in the switch */
- ret = i40e_add_veb(veb, pf->vsi[vsi_idx]);
+ ret = i40e_add_veb(veb, vsi);
if (ret)
goto err_veb;
if (vsi_idx == pf->lan_vsi)
@@ -14944,6 +14914,7 @@ static void i40e_setup_pf_switch_element(struct i40e_pf *pf,
u16 uplink_seid = le16_to_cpu(ele->uplink_seid);
u8 element_type = ele->element_type;
u16 seid = le16_to_cpu(ele->seid);
+ struct i40e_veb *veb;

if (printconfig)
dev_info(&pf->pdev->dev,
@@ -14962,12 +14933,12 @@ static void i40e_setup_pf_switch_element(struct i40e_pf *pf,
int v;

/* find existing or else empty VEB */
- for (v = 0; v < I40E_MAX_VEB; v++) {
- if (pf->veb[v] && (pf->veb[v]->seid == seid)) {
+ i40e_pf_for_each_veb(pf, v, veb)
+ if (veb->seid == seid) {
pf->lan_veb = v;
break;
}
- }
+
if (pf->lan_veb >= I40E_MAX_VEB) {
v = i40e_veb_mem_alloc(pf);
if (v < 0)
@@ -16253,6 +16224,8 @@ static void i40e_remove(struct pci_dev *pdev)
{
struct i40e_pf *pf = pci_get_drvdata(pdev);
struct i40e_hw *hw = &pf->hw;
+ struct i40e_vsi *vsi;
+ struct i40e_veb *veb;
int ret_code;
int i;

@@ -16310,24 +16283,19 @@ static void i40e_remove(struct pci_dev *pdev)
/* If there is a switch structure or any orphans, remove them.
* This will leave only the PF's VSI remaining.
*/
- for (i = 0; i < I40E_MAX_VEB; i++) {
- if (!pf->veb[i])
- continue;
-
- if (pf->veb[i]->uplink_seid == pf->mac_seid ||
- pf->veb[i]->uplink_seid == 0)
- i40e_switch_branch_release(pf->veb[i]);
- }
+ i40e_pf_for_each_veb(pf, i, veb)
+ if (veb->uplink_seid == pf->mac_seid ||
+ veb->uplink_seid == 0)
+ i40e_switch_branch_release(veb);

/* Now we can shutdown the PF's VSIs, just before we kill
* adminq and hmc.
*/
- for (i = pf->num_alloc_vsi; i--;)
- if (pf->vsi[i]) {
- i40e_vsi_close(pf->vsi[i]);
- i40e_vsi_release(pf->vsi[i]);
- pf->vsi[i] = NULL;
- }
+ i40e_pf_for_each_vsi(pf, i, vsi) {
+ i40e_vsi_close(vsi);
+ i40e_vsi_release(vsi);
+ pf->vsi[i] = NULL;
+ }

i40e_cloud_filter_exit(pf);

@@ -16364,18 +16332,17 @@ static void i40e_remove(struct pci_dev *pdev)
/* Clear all dynamic memory lists of rings, q_vectors, and VSIs */
rtnl_lock();
i40e_clear_interrupt_scheme(pf);
- for (i = 0; i < pf->num_alloc_vsi; i++) {
- if (pf->vsi[i]) {
- if (!test_bit(__I40E_RECOVERY_MODE, pf->state))
- i40e_vsi_clear_rings(pf->vsi[i]);
- i40e_vsi_clear(pf->vsi[i]);
- pf->vsi[i] = NULL;
- }
+ i40e_pf_for_each_vsi(pf, i, vsi) {
+ if (!test_bit(__I40E_RECOVERY_MODE, pf->state))
+ i40e_vsi_clear_rings(vsi);
+
+ i40e_vsi_clear(vsi);
+ pf->vsi[i] = NULL;
}
rtnl_unlock();

- for (i = 0; i < I40E_MAX_VEB; i++) {
- kfree(pf->veb[i]);
+ i40e_pf_for_each_veb(pf, i, veb) {
+ kfree(veb);
pf->veb[i] = NULL;
}

--
2.41.0