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i40e/i40evf: Only track one ITR setting per ring instead of Tx/Rx 

The rings are already split out into Tx and Rx rings so it doesn't make
sense to have any single ring store both a Tx and Rx itr_setting value.
Since that is the case drop the pair in favor of storing just a single ITR
value.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Alexander Duyck 2017-12-29 08:49:28 -05:00 коммит произвёл Jeff Kirsher
Родитель 11a350c965
Коммит 40588ca651
9 изменённых файлов: 53 добавлений и 55 удалений
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12
drivers/net/ethernet/intel/i40e/i40e_debugfs.c
Просмотреть файл

@ -315,9 +315,9 @@ static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
i, rx_ring->vsi,
rx_ring->q_vector);
dev_info(&pf->pdev->dev,
" rx_rings[%i]: rx_itr_setting = %d (%s)\n",
i, rx_ring->rx_itr_setting,
ITR_IS_DYNAMIC(rx_ring->rx_itr_setting) ? "dynamic" : "fixed");
" rx_rings[%i]: itr_setting = %d (%s)\n",
i, rx_ring->itr_setting,
ITR_IS_DYNAMIC(rx_ring->itr_setting) ? "dynamic" : "fixed");
}
for (i = 0; i < vsi->num_queue_pairs; i++) {
struct i40e_ring *tx_ring = READ_ONCE(vsi->tx_rings[i]);
@ -366,9 +366,9 @@ static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
" tx_rings[%i]: DCB tc = %d\n",
i, tx_ring->dcb_tc);
dev_info(&pf->pdev->dev,
" tx_rings[%i]: tx_itr_setting = %d (%s)\n",
i, tx_ring->tx_itr_setting,
ITR_IS_DYNAMIC(tx_ring->tx_itr_setting) ? "dynamic" : "fixed");
" tx_rings[%i]: itr_setting = %d (%s)\n",
i, tx_ring->itr_setting,
ITR_IS_DYNAMIC(tx_ring->itr_setting) ? "dynamic" : "fixed");
}
rcu_read_unlock();
dev_info(&pf->pdev->dev,

32
drivers/net/ethernet/intel/i40e/i40e_ethtool.c
Просмотреть файл

@ -2244,14 +2244,14 @@ static int __i40e_get_coalesce(struct net_device *netdev,
rx_ring = vsi->rx_rings[queue];
tx_ring = vsi->tx_rings[queue];
if (ITR_IS_DYNAMIC(rx_ring->rx_itr_setting))
if (ITR_IS_DYNAMIC(rx_ring->itr_setting))
ec->use_adaptive_rx_coalesce = 1;
if (ITR_IS_DYNAMIC(tx_ring->tx_itr_setting))
if (ITR_IS_DYNAMIC(tx_ring->itr_setting))
ec->use_adaptive_tx_coalesce = 1;
ec->rx_coalesce_usecs = rx_ring->rx_itr_setting & ~I40E_ITR_DYNAMIC;
ec->tx_coalesce_usecs = tx_ring->tx_itr_setting & ~I40E_ITR_DYNAMIC;
ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
/* we use the _usecs_high to store/set the interrupt rate limit
* that the hardware supports, that almost but not quite
@ -2315,26 +2315,26 @@ static void i40e_set_itr_per_queue(struct i40e_vsi *vsi,
intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit);
rx_ring->rx_itr_setting = ec->rx_coalesce_usecs;
tx_ring->tx_itr_setting = ec->tx_coalesce_usecs;
rx_ring->itr_setting = ec->rx_coalesce_usecs;
tx_ring->itr_setting = ec->tx_coalesce_usecs;
if (ec->use_adaptive_rx_coalesce)
rx_ring->rx_itr_setting |= I40E_ITR_DYNAMIC;
rx_ring->itr_setting |= I40E_ITR_DYNAMIC;
else
rx_ring->rx_itr_setting &= ~I40E_ITR_DYNAMIC;
rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;
if (ec->use_adaptive_tx_coalesce)
tx_ring->tx_itr_setting |= I40E_ITR_DYNAMIC;
tx_ring->itr_setting |= I40E_ITR_DYNAMIC;
else
tx_ring->tx_itr_setting &= ~I40E_ITR_DYNAMIC;
tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;
q_vector = rx_ring->q_vector;
q_vector->rx.itr = ITR_TO_REG(rx_ring->rx_itr_setting);
q_vector->rx.itr = ITR_TO_REG(rx_ring->itr_setting);
vector = vsi->base_vector + q_vector->v_idx;
wr32(hw, I40E_PFINT_ITRN(I40E_RX_ITR, vector - 1), q_vector->rx.itr);
q_vector = tx_ring->q_vector;
q_vector->tx.itr = ITR_TO_REG(tx_ring->tx_itr_setting);
q_vector->tx.itr = ITR_TO_REG(tx_ring->itr_setting);
vector = vsi->base_vector + q_vector->v_idx;
wr32(hw, I40E_PFINT_ITRN(I40E_TX_ITR, vector - 1), q_vector->tx.itr);
@ -2364,11 +2364,11 @@ static int __i40e_set_coalesce(struct net_device *netdev,
vsi->work_limit = ec->tx_max_coalesced_frames_irq;
if (queue < 0) {
cur_rx_itr = vsi->rx_rings[0]->rx_itr_setting;
cur_tx_itr = vsi->tx_rings[0]->tx_itr_setting;
cur_rx_itr = vsi->rx_rings[0]->itr_setting;
cur_tx_itr = vsi->tx_rings[0]->itr_setting;
} else if (queue < vsi->num_queue_pairs) {
cur_rx_itr = vsi->rx_rings[queue]->rx_itr_setting;
cur_tx_itr = vsi->tx_rings[queue]->tx_itr_setting;
cur_rx_itr = vsi->rx_rings[queue]->itr_setting;
cur_tx_itr = vsi->tx_rings[queue]->itr_setting;
} else {
netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n",
vsi->num_queue_pairs - 1);

14
drivers/net/ethernet/intel/i40e/i40e_main.c
Просмотреть файл

@ -3450,11 +3450,11 @@ static void i40e_vsi_configure_msix(struct i40e_vsi *vsi)
struct i40e_q_vector *q_vector = vsi->q_vectors[i];
q_vector->itr_countdown = ITR_COUNTDOWN_START;
q_vector->rx.itr = ITR_TO_REG(vsi->rx_rings[i]->rx_itr_setting);
q_vector->rx.itr = ITR_TO_REG(vsi->rx_rings[i]->itr_setting);
q_vector->rx.latency_range = I40E_LOW_LATENCY;
wr32(hw, I40E_PFINT_ITRN(I40E_RX_ITR, vector - 1),
q_vector->rx.itr);
q_vector->tx.itr = ITR_TO_REG(vsi->tx_rings[i]->tx_itr_setting);
q_vector->tx.itr = ITR_TO_REG(vsi->tx_rings[i]->itr_setting);
q_vector->tx.latency_range = I40E_LOW_LATENCY;
wr32(hw, I40E_PFINT_ITRN(I40E_TX_ITR, vector - 1),
q_vector->tx.itr);
@ -3559,10 +3559,10 @@ static void i40e_configure_msi_and_legacy(struct i40e_vsi *vsi)
/* set the ITR configuration */
q_vector->itr_countdown = ITR_COUNTDOWN_START;
q_vector->rx.itr = ITR_TO_REG(vsi->rx_rings[0]->rx_itr_setting);
q_vector->rx.itr = ITR_TO_REG(vsi->rx_rings[0]->itr_setting);
q_vector->rx.latency_range = I40E_LOW_LATENCY;
wr32(hw, I40E_PFINT_ITR0(I40E_RX_ITR), q_vector->rx.itr);
q_vector->tx.itr = ITR_TO_REG(vsi->tx_rings[0]->tx_itr_setting);
q_vector->tx.itr = ITR_TO_REG(vsi->tx_rings[0]->itr_setting);
q_vector->tx.latency_range = I40E_LOW_LATENCY;
wr32(hw, I40E_PFINT_ITR0(I40E_TX_ITR), q_vector->tx.itr);
@ -10018,7 +10018,7 @@ static int i40e_alloc_rings(struct i40e_vsi *vsi)
ring->dcb_tc = 0;
if (vsi->back->hw_features & I40E_HW_WB_ON_ITR_CAPABLE)
ring->flags = I40E_TXR_FLAGS_WB_ON_ITR;
ring->tx_itr_setting = pf->tx_itr_default;
ring->itr_setting = pf->tx_itr_default;
vsi->tx_rings[i] = ring++;
if (!i40e_enabled_xdp_vsi(vsi))
@ -10036,7 +10036,7 @@ static int i40e_alloc_rings(struct i40e_vsi *vsi)
if (vsi->back->hw_features & I40E_HW_WB_ON_ITR_CAPABLE)
ring->flags = I40E_TXR_FLAGS_WB_ON_ITR;
set_ring_xdp(ring);
ring->tx_itr_setting = pf->tx_itr_default;
ring->itr_setting = pf->tx_itr_default;
vsi->xdp_rings[i] = ring++;
setup_rx:
@ -10049,7 +10049,7 @@ setup_rx:
ring->count = vsi->num_desc;
ring->size = 0;
ring->dcb_tc = 0;
ring->rx_itr_setting = pf->rx_itr_default;
ring->itr_setting = pf->rx_itr_default;
vsi->rx_rings[i] = ring;
}

6
drivers/net/ethernet/intel/i40e/i40e_txrx.c
Просмотреть файл

@ -2290,12 +2290,12 @@ static u32 i40e_buildreg_itr(const int type, const u16 itr)
#define INTREG I40E_PFINT_DYN_CTLN
static inline int get_rx_itr(struct i40e_vsi *vsi, int idx)
{
return vsi->rx_rings[idx]->rx_itr_setting;
return vsi->rx_rings[idx]->itr_setting;
}
static inline int get_tx_itr(struct i40e_vsi *vsi, int idx)
{
return vsi->tx_rings[idx]->tx_itr_setting;
return vsi->tx_rings[idx]->itr_setting;
}
/**
@ -2322,7 +2322,7 @@ static inline void i40e_update_enable_itr(struct i40e_vsi *vsi,
/* avoid dynamic calculation if in countdown mode OR if
* all dynamic is disabled
*/
rxval = txval = i40e_buildreg_itr(I40E_ITR_NONE, 0);
txval = i40e_buildreg_itr(I40E_ITR_NONE, 0);
rx_itr_setting = get_rx_itr(vsi, idx);
tx_itr_setting = get_tx_itr(vsi, idx);

3
drivers/net/ethernet/intel/i40e/i40e_txrx.h
Просмотреть файл

@ -382,8 +382,7 @@ struct i40e_ring {
* these values always store the USER setting, and must be converted
* before programming to a register.
*/
u16 rx_itr_setting;
u16 tx_itr_setting;
u16 itr_setting;
u16 count; /* Number of descriptors */
u16 reg_idx; /* HW register index of the ring */

6
drivers/net/ethernet/intel/i40evf/i40e_txrx.c
Просмотреть файл

@ -1475,14 +1475,14 @@ static inline int get_rx_itr(struct i40e_vsi *vsi, int idx)
{
struct i40evf_adapter *adapter = vsi->back;
return adapter->rx_rings[idx].rx_itr_setting;
return adapter->rx_rings[idx].itr_setting;
}
static inline int get_tx_itr(struct i40e_vsi *vsi, int idx)
{
struct i40evf_adapter *adapter = vsi->back;
return adapter->tx_rings[idx].tx_itr_setting;
return adapter->tx_rings[idx].itr_setting;
}
/**
@ -1503,7 +1503,7 @@ static inline void i40e_update_enable_itr(struct i40e_vsi *vsi,
/* avoid dynamic calculation if in countdown mode OR if
* all dynamic is disabled
*/
rxval = txval = i40e_buildreg_itr(I40E_ITR_NONE, 0);
txval = i40e_buildreg_itr(I40E_ITR_NONE, 0);
rx_itr_setting = get_rx_itr(vsi, idx);
tx_itr_setting = get_tx_itr(vsi, idx);

3
drivers/net/ethernet/intel/i40evf/i40e_txrx.h
Просмотреть файл

@ -362,8 +362,7 @@ struct i40e_ring {
* these values always store the USER setting, and must be converted
* before programming to a register.
*/
u16 rx_itr_setting;
u16 tx_itr_setting;
u16 itr_setting;
u16 count; /* Number of descriptors */
u16 reg_idx; /* HW register index of the ring */

24
drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c
Просмотреть файл

@ -457,14 +457,14 @@ static int __i40evf_get_coalesce(struct net_device *netdev,
rx_ring = &adapter->rx_rings[queue];
tx_ring = &adapter->tx_rings[queue];
if (ITR_IS_DYNAMIC(rx_ring->rx_itr_setting))
if (ITR_IS_DYNAMIC(rx_ring->itr_setting))
ec->use_adaptive_rx_coalesce = 1;
if (ITR_IS_DYNAMIC(tx_ring->tx_itr_setting))
if (ITR_IS_DYNAMIC(tx_ring->itr_setting))
ec->use_adaptive_tx_coalesce = 1;
ec->rx_coalesce_usecs = rx_ring->rx_itr_setting & ~I40E_ITR_DYNAMIC;
ec->tx_coalesce_usecs = tx_ring->tx_itr_setting & ~I40E_ITR_DYNAMIC;
ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
return 0;
}
@ -519,24 +519,24 @@ static void i40evf_set_itr_per_queue(struct i40evf_adapter *adapter,
struct i40e_q_vector *q_vector;
u16 vector;
rx_ring->rx_itr_setting = ec->rx_coalesce_usecs;
tx_ring->tx_itr_setting = ec->tx_coalesce_usecs;
rx_ring->itr_setting = ec->rx_coalesce_usecs;
tx_ring->itr_setting = ec->tx_coalesce_usecs;
rx_ring->rx_itr_setting |= I40E_ITR_DYNAMIC;
rx_ring->itr_setting |= I40E_ITR_DYNAMIC;
if (!ec->use_adaptive_rx_coalesce)
rx_ring->rx_itr_setting ^= I40E_ITR_DYNAMIC;
rx_ring->itr_setting ^= I40E_ITR_DYNAMIC;
tx_ring->tx_itr_setting |= I40E_ITR_DYNAMIC;
tx_ring->itr_setting |= I40E_ITR_DYNAMIC;
if (!ec->use_adaptive_tx_coalesce)
tx_ring->tx_itr_setting ^= I40E_ITR_DYNAMIC;
tx_ring->itr_setting ^= I40E_ITR_DYNAMIC;
q_vector = rx_ring->q_vector;
q_vector->rx.itr = ITR_TO_REG(rx_ring->rx_itr_setting);
q_vector->rx.itr = ITR_TO_REG(rx_ring->itr_setting);
vector = vsi->base_vector + q_vector->v_idx;
wr32(hw, I40E_VFINT_ITRN1(I40E_RX_ITR, vector - 1), q_vector->rx.itr);
q_vector = tx_ring->q_vector;
q_vector->tx.itr = ITR_TO_REG(tx_ring->tx_itr_setting);
q_vector->tx.itr = ITR_TO_REG(tx_ring->itr_setting);
vector = vsi->base_vector + q_vector->v_idx;
wr32(hw, I40E_VFINT_ITRN1(I40E_TX_ITR, vector - 1), q_vector->tx.itr);

8
drivers/net/ethernet/intel/i40evf/i40evf_main.c
Просмотреть файл

@ -354,7 +354,7 @@ i40evf_map_vector_to_rxq(struct i40evf_adapter *adapter, int v_idx, int r_idx)
q_vector->rx.ring = rx_ring;
q_vector->rx.count++;
q_vector->rx.latency_range = I40E_LOW_LATENCY;
q_vector->rx.itr = ITR_TO_REG(rx_ring->rx_itr_setting);
q_vector->rx.itr = ITR_TO_REG(rx_ring->itr_setting);
q_vector->ring_mask |= BIT(r_idx);
q_vector->itr_countdown = ITR_COUNTDOWN_START;
wr32(hw, I40E_VFINT_ITRN1(I40E_RX_ITR, v_idx - 1), q_vector->rx.itr);
@ -379,7 +379,7 @@ i40evf_map_vector_to_txq(struct i40evf_adapter *adapter, int v_idx, int t_idx)
q_vector->tx.ring = tx_ring;
q_vector->tx.count++;
q_vector->tx.latency_range = I40E_LOW_LATENCY;
q_vector->tx.itr = ITR_TO_REG(tx_ring->tx_itr_setting);
q_vector->tx.itr = ITR_TO_REG(tx_ring->itr_setting);
q_vector->itr_countdown = ITR_COUNTDOWN_START;
q_vector->num_ringpairs++;
wr32(hw, I40E_VFINT_ITRN1(I40E_TX_ITR, v_idx - 1), q_vector->tx.itr);
@ -1169,7 +1169,7 @@ static int i40evf_alloc_queues(struct i40evf_adapter *adapter)
tx_ring->netdev = adapter->netdev;
tx_ring->dev = &adapter->pdev->dev;
tx_ring->count = adapter->tx_desc_count;
tx_ring->tx_itr_setting = I40E_ITR_TX_DEF;
tx_ring->itr_setting = I40E_ITR_TX_DEF;
if (adapter->flags & I40EVF_FLAG_WB_ON_ITR_CAPABLE)
tx_ring->flags |= I40E_TXR_FLAGS_WB_ON_ITR;
@ -1178,7 +1178,7 @@ static int i40evf_alloc_queues(struct i40evf_adapter *adapter)
rx_ring->netdev = adapter->netdev;
rx_ring->dev = &adapter->pdev->dev;
rx_ring->count = adapter->rx_desc_count;
rx_ring->rx_itr_setting = I40E_ITR_RX_DEF;
rx_ring->itr_setting = I40E_ITR_RX_DEF;
}
adapter->num_active_queues = num_active_queues;