diff options
author | David S. Miller <davem@davemloft.net> | 2012-07-16 23:04:00 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2012-07-16 23:04:00 -0700 |
commit | 7ff65cdea72bdf9af0b9c57cd003211875ca4142 (patch) | |
tree | 4efceb55c24f7ba27d322c75956eeef92e6d043b | |
parent | ac1ae5f33fd225f46da0072e2091962410a0431b (diff) | |
parent | d411a9368bca616b4593e4f3d820dceccdd9027e (diff) | |
download | linux-7ff65cdea72bdf9af0b9c57cd003211875ca4142.tar.bz2 |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next
Jett Kirsher says:
====================
This series contains updates to e1000e and ixgbe.
...
Alexander Duyck (5):
ixgbe: Simplify logic for getting traffic class from user priority
ixgbe: Cleanup unpacking code for DCB
ixgbe: Populate the prio_tc_map in ixgbe_setup_tc
ixgbe: Add function for obtaining FCoE TC based on FCoE user priority
ixgbe: Merge FCoE set_num and cache_ring calls into RSS/DCB config
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r-- | drivers/net/ethernet/intel/e1000e/82571.c | 14 | ||||
-rw-r--r-- | drivers/net/ethernet/intel/e1000e/e1000.h | 1 | ||||
-rw-r--r-- | drivers/net/ethernet/intel/e1000e/ethtool.c | 5 | ||||
-rw-r--r-- | drivers/net/ethernet/intel/e1000e/netdev.c | 32 | ||||
-rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe.h | 1 | ||||
-rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_dcb.c | 74 | ||||
-rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_dcb.h | 1 | ||||
-rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_nl.c | 26 | ||||
-rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c | 15 | ||||
-rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c | 260 | ||||
-rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 61 |
11 files changed, 265 insertions, 225 deletions
diff --git a/drivers/net/ethernet/intel/e1000e/82571.c b/drivers/net/ethernet/intel/e1000e/82571.c index 36db4df09aed..19f4cb9582b5 100644 --- a/drivers/net/ethernet/intel/e1000e/82571.c +++ b/drivers/net/ethernet/intel/e1000e/82571.c @@ -1677,16 +1677,18 @@ static s32 e1000_check_for_serdes_link_82571(struct e1000_hw *hw) e_dbg("ANYSTATE -> DOWN\n"); } else { /* - * Check several times, if Sync and Config - * both are consistently 1 then simply ignore - * the Invalid bit and restart Autoneg + * Check several times, if SYNCH bit and CONFIG + * bit both are consistently 1 then simply ignore + * the IV bit and restart Autoneg */ for (i = 0; i < AN_RETRY_COUNT; i++) { udelay(10); rxcw = er32(RXCW); - if ((rxcw & E1000_RXCW_IV) && - !((rxcw & E1000_RXCW_SYNCH) && - (rxcw & E1000_RXCW_C))) { + if ((rxcw & E1000_RXCW_SYNCH) && + (rxcw & E1000_RXCW_C)) + continue; + + if (rxcw & E1000_RXCW_IV) { mac->serdes_has_link = false; mac->serdes_link_state = e1000_serdes_link_down; diff --git a/drivers/net/ethernet/intel/e1000e/e1000.h b/drivers/net/ethernet/intel/e1000e/e1000.h index 6e6fffb34581..cd153326c3cf 100644 --- a/drivers/net/ethernet/intel/e1000e/e1000.h +++ b/drivers/net/ethernet/intel/e1000e/e1000.h @@ -514,6 +514,7 @@ extern void e1000e_set_interrupt_capability(struct e1000_adapter *adapter); extern void e1000e_reset_interrupt_capability(struct e1000_adapter *adapter); extern void e1000e_get_hw_control(struct e1000_adapter *adapter); extern void e1000e_release_hw_control(struct e1000_adapter *adapter); +extern void e1000e_write_itr(struct e1000_adapter *adapter, u32 itr); extern unsigned int copybreak; diff --git a/drivers/net/ethernet/intel/e1000e/ethtool.c b/drivers/net/ethernet/intel/e1000e/ethtool.c index 905e2147d918..105d554ea9db 100644 --- a/drivers/net/ethernet/intel/e1000e/ethtool.c +++ b/drivers/net/ethernet/intel/e1000e/ethtool.c @@ -1897,7 +1897,6 @@ static int e1000_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec) { struct e1000_adapter *adapter = netdev_priv(netdev); - struct e1000_hw *hw = &adapter->hw; if ((ec->rx_coalesce_usecs > E1000_MAX_ITR_USECS) || ((ec->rx_coalesce_usecs > 4) && @@ -1916,9 +1915,9 @@ static int e1000_set_coalesce(struct net_device *netdev, } if (adapter->itr_setting != 0) - ew32(ITR, 1000000000 / (adapter->itr * 256)); + e1000e_write_itr(adapter, adapter->itr); else - ew32(ITR, 0); + e1000e_write_itr(adapter, 0); return 0; } diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c index ca477e87eb87..95b245310f17 100644 --- a/drivers/net/ethernet/intel/e1000e/netdev.c +++ b/drivers/net/ethernet/intel/e1000e/netdev.c @@ -2474,6 +2474,30 @@ set_itr_now: } /** + * e1000e_write_itr - write the ITR value to the appropriate registers + * @adapter: address of board private structure + * @itr: new ITR value to program + * + * e1000e_write_itr determines if the adapter is in MSI-X mode + * and, if so, writes the EITR registers with the ITR value. + * Otherwise, it writes the ITR value into the ITR register. + **/ +void e1000e_write_itr(struct e1000_adapter *adapter, u32 itr) +{ + struct e1000_hw *hw = &adapter->hw; + u32 new_itr = itr ? 1000000000 / (itr * 256) : 0; + + if (adapter->msix_entries) { + int vector; + + for (vector = 0; vector < adapter->num_vectors; vector++) + writel(new_itr, hw->hw_addr + E1000_EITR_82574(vector)); + } else { + ew32(ITR, new_itr); + } +} + +/** * e1000_alloc_queues - Allocate memory for all rings * @adapter: board private structure to initialize **/ @@ -3059,7 +3083,7 @@ static void e1000_configure_rx(struct e1000_adapter *adapter) /* irq moderation */ ew32(RADV, adapter->rx_abs_int_delay); if ((adapter->itr_setting != 0) && (adapter->itr != 0)) - ew32(ITR, 1000000000 / (adapter->itr * 256)); + e1000e_write_itr(adapter, adapter->itr); ctrl_ext = er32(CTRL_EXT); /* Auto-Mask interrupts upon ICR access */ @@ -3486,14 +3510,14 @@ void e1000e_reset(struct e1000_adapter *adapter) dev_info(&adapter->pdev->dev, "Interrupt Throttle Rate turned off\n"); adapter->flags2 |= FLAG2_DISABLE_AIM; - ew32(ITR, 0); + e1000e_write_itr(adapter, 0); } } else if (adapter->flags2 & FLAG2_DISABLE_AIM) { dev_info(&adapter->pdev->dev, "Interrupt Throttle Rate turned on\n"); adapter->flags2 &= ~FLAG2_DISABLE_AIM; adapter->itr = 20000; - ew32(ITR, 1000000000 / (adapter->itr * 256)); + e1000e_write_itr(adapter, adapter->itr); } } @@ -4576,7 +4600,7 @@ link_up: adapter->gorc - adapter->gotc) / 10000; u32 itr = goc > 0 ? (dif * 6000 / goc + 2000) : 8000; - ew32(ITR, 1000000000 / (itr * 256)); + e1000e_write_itr(adapter, itr); } /* Cause software interrupt to ensure Rx ring is cleaned */ diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h index 2ffdc8f4c276..5a75a9c8b813 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h @@ -707,6 +707,7 @@ extern u8 ixgbe_fcoe_setapp(struct ixgbe_adapter *adapter, u8 up); extern int ixgbe_fcoe_get_wwn(struct net_device *netdev, u64 *wwn, int type); extern int ixgbe_fcoe_get_hbainfo(struct net_device *netdev, struct netdev_fcoe_hbainfo *info); +extern u8 ixgbe_fcoe_get_tc(struct ixgbe_adapter *adapter); #endif /* IXGBE_FCOE */ static inline struct netdev_queue *txring_txq(const struct ixgbe_ring *ring) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb.c index 8bfaaee5ac5b..5442b359141e 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb.c @@ -180,67 +180,79 @@ out: void ixgbe_dcb_unpack_pfc(struct ixgbe_dcb_config *cfg, u8 *pfc_en) { - int i; + struct tc_configuration *tc_config = &cfg->tc_config[0]; + int tc; - *pfc_en = 0; - for (i = 0; i < MAX_TRAFFIC_CLASS; i++) - *pfc_en |= !!(cfg->tc_config[i].dcb_pfc & 0xF) << i; + for (*pfc_en = 0, tc = 0; tc < MAX_TRAFFIC_CLASS; tc++) { + if (tc_config[tc].dcb_pfc != pfc_disabled) + *pfc_en |= 1 << tc; + } } void ixgbe_dcb_unpack_refill(struct ixgbe_dcb_config *cfg, int direction, u16 *refill) { - struct tc_bw_alloc *p; - int i; + struct tc_configuration *tc_config = &cfg->tc_config[0]; + int tc; - for (i = 0; i < MAX_TRAFFIC_CLASS; i++) { - p = &cfg->tc_config[i].path[direction]; - refill[i] = p->data_credits_refill; - } + for (tc = 0; tc < MAX_TRAFFIC_CLASS; tc++) + refill[tc] = tc_config[tc].path[direction].data_credits_refill; } void ixgbe_dcb_unpack_max(struct ixgbe_dcb_config *cfg, u16 *max) { - int i; + struct tc_configuration *tc_config = &cfg->tc_config[0]; + int tc; - for (i = 0; i < MAX_TRAFFIC_CLASS; i++) - max[i] = cfg->tc_config[i].desc_credits_max; + for (tc = 0; tc < MAX_TRAFFIC_CLASS; tc++) + max[tc] = tc_config[tc].desc_credits_max; } void ixgbe_dcb_unpack_bwgid(struct ixgbe_dcb_config *cfg, int direction, u8 *bwgid) { - struct tc_bw_alloc *p; - int i; + struct tc_configuration *tc_config = &cfg->tc_config[0]; + int tc; - for (i = 0; i < MAX_TRAFFIC_CLASS; i++) { - p = &cfg->tc_config[i].path[direction]; - bwgid[i] = p->bwg_id; - } + for (tc = 0; tc < MAX_TRAFFIC_CLASS; tc++) + bwgid[tc] = tc_config[tc].path[direction].bwg_id; } void ixgbe_dcb_unpack_prio(struct ixgbe_dcb_config *cfg, int direction, u8 *ptype) { - struct tc_bw_alloc *p; - int i; + struct tc_configuration *tc_config = &cfg->tc_config[0]; + int tc; - for (i = 0; i < MAX_TRAFFIC_CLASS; i++) { - p = &cfg->tc_config[i].path[direction]; - ptype[i] = p->prio_type; + for (tc = 0; tc < MAX_TRAFFIC_CLASS; tc++) + ptype[tc] = tc_config[tc].path[direction].prio_type; +} + +u8 ixgbe_dcb_get_tc_from_up(struct ixgbe_dcb_config *cfg, int direction, u8 up) +{ + struct tc_configuration *tc_config = &cfg->tc_config[0]; + u8 prio_mask = 1 << up; + u8 tc; + + /* + * Test for TCs 7 through 1 and report the first match we find. If + * we find no match we can assume that the TC is 0 since the TC must + * be set for all user priorities + */ + for (tc = MAX_TRAFFIC_CLASS - 1; tc; tc--) { + if (prio_mask & tc_config[tc].path[direction].up_to_tc_bitmap) + break; } + + return tc; } void ixgbe_dcb_unpack_map(struct ixgbe_dcb_config *cfg, int direction, u8 *map) { - int i, up; - unsigned long bitmap; + u8 up; - for (i = 0; i < MAX_TRAFFIC_CLASS; i++) { - bitmap = cfg->tc_config[i].path[direction].up_to_tc_bitmap; - for_each_set_bit(up, &bitmap, MAX_USER_PRIORITY) - map[up] = i; - } + for (up = 0; up < MAX_USER_PRIORITY; up++) + map[up] = ixgbe_dcb_get_tc_from_up(cfg, direction, up); } /** diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb.h index 24333b718166..1f4108ee154b 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb.h +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb.h @@ -146,6 +146,7 @@ void ixgbe_dcb_unpack_max(struct ixgbe_dcb_config *, u16 *); void ixgbe_dcb_unpack_bwgid(struct ixgbe_dcb_config *, int, u8 *); void ixgbe_dcb_unpack_prio(struct ixgbe_dcb_config *, int, u8 *); void ixgbe_dcb_unpack_map(struct ixgbe_dcb_config *, int, u8 *); +u8 ixgbe_dcb_get_tc_from_up(struct ixgbe_dcb_config *, int, u8); /* DCB credits calculation */ s32 ixgbe_dcb_calculate_tc_credits(struct ixgbe_hw *, diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_nl.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_nl.c index 5164a21b13ca..f1e002d5fa8f 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_nl.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_nl.c @@ -151,34 +151,21 @@ static u8 ixgbe_dcbnl_get_state(struct net_device *netdev) static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state) { - int err = 0; - u8 prio_tc[MAX_USER_PRIORITY] = {0}; - int i; struct ixgbe_adapter *adapter = netdev_priv(netdev); + int err = 0; /* Fail command if not in CEE mode */ if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE)) return 1; /* verify there is something to do, if not then exit */ - if (!!state != !(adapter->flags & IXGBE_FLAG_DCB_ENABLED)) - goto out; - - if (state > 0) { - err = ixgbe_setup_tc(netdev, adapter->dcb_cfg.num_tcs.pg_tcs); - ixgbe_dcb_unpack_map(&adapter->dcb_cfg, DCB_TX_CONFIG, prio_tc); - } else { - err = ixgbe_setup_tc(netdev, 0); - } - - if (err) + if (!state == !(adapter->flags & IXGBE_FLAG_DCB_ENABLED)) goto out; - for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) - netdev_set_prio_tc_map(netdev, i, prio_tc[i]); - + err = ixgbe_setup_tc(netdev, + state ? adapter->dcb_cfg.num_tcs.pg_tcs : 0); out: - return err ? 1 : 0; + return !!err; } static void ixgbe_dcbnl_get_perm_hw_addr(struct net_device *netdev, @@ -584,9 +571,6 @@ static int ixgbe_dcbnl_ieee_setets(struct net_device *dev, if (err) goto err_out; - for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) - netdev_set_prio_tc_map(dev, i, ets->prio_tc[i]); - err = ixgbe_dcb_hw_ets(&adapter->hw, ets, max_frame); err_out: return err; diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c index 0922ece4d853..cc28c44a048c 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c @@ -960,3 +960,18 @@ int ixgbe_fcoe_get_hbainfo(struct net_device *netdev, return 0; } + +/** + * ixgbe_fcoe_get_tc - get the current TC that fcoe is mapped to + * @adapter - pointer to the device adapter structure + * + * Return : TC that FCoE is mapped to + */ +u8 ixgbe_fcoe_get_tc(struct ixgbe_adapter *adapter) +{ +#ifdef CONFIG_IXGBE_DCB + return netdev_get_prio_tc_map(adapter->netdev, adapter->fcoe.up); +#else + return 0; +#endif +} diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c index 83eadd019e6b..d308e7140171 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c @@ -28,29 +28,7 @@ #include "ixgbe.h" #include "ixgbe_sriov.h" -/** - * ixgbe_cache_ring_rss - Descriptor ring to register mapping for RSS - * @adapter: board private structure to initialize - * - * Cache the descriptor ring offsets for RSS to the assigned rings. - * - **/ -static inline bool ixgbe_cache_ring_rss(struct ixgbe_adapter *adapter) -{ - int i; - - if (!(adapter->flags & IXGBE_FLAG_RSS_ENABLED)) - return false; - - for (i = 0; i < adapter->num_rx_queues; i++) - adapter->rx_ring[i]->reg_idx = i; - for (i = 0; i < adapter->num_tx_queues; i++) - adapter->tx_ring[i]->reg_idx = i; - - return true; -} #ifdef CONFIG_IXGBE_DCB - /* ixgbe_get_first_reg_idx - Return first register index associated with ring */ static void ixgbe_get_first_reg_idx(struct ixgbe_adapter *adapter, u8 tc, unsigned int *tx, unsigned int *rx) @@ -136,39 +114,8 @@ static inline bool ixgbe_cache_ring_dcb(struct ixgbe_adapter *adapter) return true; } -#endif -#ifdef IXGBE_FCOE -/** - * ixgbe_cache_ring_fcoe - Descriptor ring to register mapping for the FCoE - * @adapter: board private structure to initialize - * - * Cache the descriptor ring offsets for FCoE mode to the assigned rings. - * - */ -static inline bool ixgbe_cache_ring_fcoe(struct ixgbe_adapter *adapter) -{ - struct ixgbe_ring_feature *f = &adapter->ring_feature[RING_F_FCOE]; - int i; - u8 fcoe_rx_i = 0, fcoe_tx_i = 0; - - if (!(adapter->flags & IXGBE_FLAG_FCOE_ENABLED)) - return false; - - if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) { - ixgbe_cache_ring_rss(adapter); - - fcoe_rx_i = f->offset; - fcoe_tx_i = f->offset; - } - for (i = 0; i < f->indices; i++, fcoe_rx_i++, fcoe_tx_i++) { - adapter->rx_ring[f->offset + i]->reg_idx = fcoe_rx_i; - adapter->tx_ring[f->offset + i]->reg_idx = fcoe_tx_i; - } - return true; -} - -#endif /* IXGBE_FCOE */ +#endif /** * ixgbe_cache_ring_sriov - Descriptor ring to register mapping for sriov * @adapter: board private structure to initialize @@ -188,6 +135,28 @@ static inline bool ixgbe_cache_ring_sriov(struct ixgbe_adapter *adapter) } /** + * ixgbe_cache_ring_rss - Descriptor ring to register mapping for RSS + * @adapter: board private structure to initialize + * + * Cache the descriptor ring offsets for RSS to the assigned rings. + * + **/ +static bool ixgbe_cache_ring_rss(struct ixgbe_adapter *adapter) +{ + int i; + + if (!(adapter->flags & IXGBE_FLAG_RSS_ENABLED)) + return false; + + for (i = 0; i < adapter->num_rx_queues; i++) + adapter->rx_ring[i]->reg_idx = i; + for (i = 0; i < adapter->num_tx_queues; i++) + adapter->tx_ring[i]->reg_idx = i; + + return true; +} + +/** * ixgbe_cache_ring_register - Descriptor ring to register mapping * @adapter: board private structure to initialize * @@ -212,13 +181,7 @@ static void ixgbe_cache_ring_register(struct ixgbe_adapter *adapter) return; #endif -#ifdef IXGBE_FCOE - if (ixgbe_cache_ring_fcoe(adapter)) - return; -#endif /* IXGBE_FCOE */ - - if (ixgbe_cache_ring_rss(adapter)) - return; + ixgbe_cache_ring_rss(adapter); } /** @@ -234,6 +197,74 @@ static inline bool ixgbe_set_sriov_queues(struct ixgbe_adapter *adapter) return false; } +#define IXGBE_RSS_16Q_MASK 0xF +#define IXGBE_RSS_8Q_MASK 0x7 +#define IXGBE_RSS_4Q_MASK 0x3 +#define IXGBE_RSS_2Q_MASK 0x1 +#define IXGBE_RSS_DISABLED_MASK 0x0 + +#ifdef CONFIG_IXGBE_DCB +static bool ixgbe_set_dcb_queues(struct ixgbe_adapter *adapter) +{ + struct net_device *dev = adapter->netdev; + struct ixgbe_ring_feature *f; + int rss_i, rss_m, i; + int tcs; + + /* Map queue offset and counts onto allocated tx queues */ + tcs = netdev_get_num_tc(dev); + + /* verify we have DCB queueing enabled before proceeding */ + if (tcs <= 1) + return false; + + /* determine the upper limit for our current DCB mode */ + rss_i = dev->num_tx_queues / tcs; + if (adapter->hw.mac.type == ixgbe_mac_82598EB) { + /* 8 TC w/ 4 queues per TC */ + rss_i = min_t(u16, rss_i, 4); + rss_m = IXGBE_RSS_4Q_MASK; + } else if (tcs > 4) { + /* 8 TC w/ 8 queues per TC */ + rss_i = min_t(u16, rss_i, 8); + rss_m = IXGBE_RSS_8Q_MASK; + } else { + /* 4 TC w/ 16 queues per TC */ + rss_i = min_t(u16, rss_i, 16); + rss_m = IXGBE_RSS_16Q_MASK; + } + + /* set RSS mask and indices */ + f = &adapter->ring_feature[RING_F_RSS]; + rss_i = min_t(int, rss_i, f->limit); + f->indices = rss_i; + f->mask = rss_m; + +#ifdef IXGBE_FCOE + /* FCoE enabled queues require special configuration indexed + * by feature specific indices and offset. Here we map FCoE + * indices onto the DCB queue pairs allowing FCoE to own + * configuration later. + */ + if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) { + u8 tc = ixgbe_fcoe_get_tc(adapter); + + f = &adapter->ring_feature[RING_F_FCOE]; + f->indices = min_t(u16, rss_i, f->limit); + f->offset = rss_i * tc; + } + +#endif /* IXGBE_FCOE */ + for (i = 0; i < tcs; i++) + netdev_set_tc_queue(dev, i, rss_i, rss_i * i); + + adapter->num_tx_queues = rss_i * tcs; + adapter->num_rx_queues = rss_i * tcs; + + return true; +} + +#endif /** * ixgbe_set_rss_queues - Allocate queues for RSS * @adapter: board private structure to initialize @@ -257,7 +288,7 @@ static bool ixgbe_set_rss_queues(struct ixgbe_adapter *adapter) rss_i = f->limit; f->indices = rss_i; - f->mask = 0xF; + f->mask = IXGBE_RSS_16Q_MASK; /* * Use Flow Director in addition to RSS to ensure the best @@ -271,93 +302,41 @@ static bool ixgbe_set_rss_queues(struct ixgbe_adapter *adapter) rss_i = max_t(u16, rss_i, f->indices); } - adapter->num_rx_queues = rss_i; - adapter->num_tx_queues = rss_i; - - return true; -} - #ifdef IXGBE_FCOE -/** - * ixgbe_set_fcoe_queues - Allocate queues for Fiber Channel over Ethernet (FCoE) - * @adapter: board private structure to initialize - * - * FCoE RX FCRETA can use up to 8 rx queues for up to 8 different exchanges. - * Offset is used as the index of the first rx queue used by FCoE. - **/ -static inline bool ixgbe_set_fcoe_queues(struct ixgbe_adapter *adapter) -{ - struct ixgbe_ring_feature *f = &adapter->ring_feature[RING_F_FCOE]; + /* + * FCoE can exist on the same rings as standard network traffic + * however it is preferred to avoid that if possible. In order + * to get the best performance we allocate as many FCoE queues + * as we can and we place them at the end of the ring array to + * avoid sharing queues with standard RSS on systems with 24 or + * more CPUs. + */ + if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) { + struct net_device *dev = adapter->netdev; + u16 fcoe_i; - if (!(adapter->flags & IXGBE_FLAG_FCOE_ENABLED)) - return false; + f = &adapter->ring_feature[RING_F_FCOE]; - f->indices = min_t(int, num_online_cpus(), f->limit); + /* merge FCoE queues with RSS queues */ + fcoe_i = min_t(u16, f->limit + rss_i, num_online_cpus()); + fcoe_i = min_t(u16, fcoe_i, dev->num_tx_queues); - adapter->num_rx_queues = 1; - adapter->num_tx_queues = 1; + /* limit indices to rss_i if MSI-X is disabled */ + if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) + fcoe_i = rss_i; - if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) { - e_info(probe, "FCoE enabled with RSS\n"); - ixgbe_set_rss_queues(adapter); + /* attempt to reserve some queues for just FCoE */ + f->indices = min_t(u16, fcoe_i, f->limit); + f->offset = fcoe_i - f->indices; + rss_i = max_t(u16, fcoe_i, rss_i); } - /* adding FCoE rx rings to the end */ - f->offset = adapter->num_rx_queues; - adapter->num_rx_queues += f->indices; - adapter->num_tx_queues += f->indices; - - return true; -} #endif /* IXGBE_FCOE */ - -/* Artificial max queue cap per traffic class in DCB mode */ -#define DCB_QUEUE_CAP 8 - -#ifdef CONFIG_IXGBE_DCB -static inline bool ixgbe_set_dcb_queues(struct ixgbe_adapter *adapter) -{ - int per_tc_q, q, i, offset = 0; - struct net_device *dev = adapter->netdev; - int tcs = netdev_get_num_tc(dev); - - if (!tcs) - return false; - - /* Map queue offset and counts onto allocated tx queues */ - per_tc_q = min_t(unsigned int, dev->num_tx_queues / tcs, DCB_QUEUE_CAP); - q = min_t(int, num_online_cpus(), per_tc_q); - - for (i = 0; i < tcs; i++) { - netdev_set_tc_queue(dev, i, q, offset); - offset += q; - } - - adapter->num_tx_queues = q * tcs; - adapter->num_rx_queues = q * tcs; - -#ifdef IXGBE_FCOE - /* FCoE enabled queues require special configuration indexed - * by feature specific indices and offset. Here we map FCoE - * indices onto the DCB queue pairs allowing FCoE to own - * configuration later. - */ - if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) { - u8 prio_tc[MAX_USER_PRIORITY] = {0}; - int tc; - struct ixgbe_ring_feature *f = - &adapter->ring_feature[RING_F_FCOE]; - - ixgbe_dcb_unpack_map(&adapter->dcb_cfg, DCB_TX_CONFIG, prio_tc); - tc = prio_tc[adapter->fcoe.up]; - f->indices = dev->tc_to_txq[tc].count; - f->offset = dev->tc_to_txq[tc].offset; - } -#endif + adapter->num_rx_queues = rss_i; + adapter->num_tx_queues = rss_i; return true; } -#endif /** * ixgbe_set_num_queues - Allocate queues for device, feature dependent @@ -386,11 +365,6 @@ static int ixgbe_set_num_queues(struct ixgbe_adapter *adapter) goto done; #endif -#ifdef IXGBE_FCOE - if (ixgbe_set_fcoe_queues(adapter)) - goto done; - -#endif /* IXGBE_FCOE */ if (ixgbe_set_rss_queues(adapter)) goto done; diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index d3cf8873d483..ee230f533ee3 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -3610,16 +3610,17 @@ static void ixgbe_configure_dcb(struct ixgbe_adapter *adapter) if (hw->mac.type != ixgbe_mac_82598EB) { int i; u32 reg = 0; + u8 msb = 0; + u8 rss_i = adapter->netdev->tc_to_txq[0].count - 1; - for (i = 0; i < MAX_TRAFFIC_CLASS; i++) { - u8 msb = 0; - u8 cnt = adapter->netdev->tc_to_txq[i].count; - - while (cnt >>= 1) - msb++; + while (rss_i) { + msb++; + rss_i >>= 1; + } + for (i = 0; i < MAX_TRAFFIC_CLASS; i++) reg |= msb << IXGBE_RQTC_SHIFT_TC(i); - } + IXGBE_WRITE_REG(hw, IXGBE_RQTC, reg); } } @@ -3646,18 +3647,12 @@ static int ixgbe_hpbthresh(struct ixgbe_adapter *adapter, int pb) #ifdef IXGBE_FCOE /* FCoE traffic class uses FCOE jumbo frames */ - if (dev->features & NETIF_F_FCOE_MTU) { - int fcoe_pb = 0; - -#ifdef CONFIG_IXGBE_DCB - fcoe_pb = netdev_get_prio_tc_map(dev, adapter->fcoe.up); + if ((dev->features & NETIF_F_FCOE_MTU) && + (tc < IXGBE_FCOE_JUMBO_FRAME_SIZE) && + (pb == ixgbe_fcoe_get_tc(adapter))) + tc = IXGBE_FCOE_JUMBO_FRAME_SIZE; #endif - if (fcoe_pb == pb && tc < IXGBE_FCOE_JUMBO_FRAME_SIZE) - tc = IXGBE_FCOE_JUMBO_FRAME_SIZE; - } -#endif - /* Calculate delay value for device */ switch (hw->mac.type) { case ixgbe_mac_X540: @@ -6596,6 +6591,31 @@ static void ixgbe_validate_rtr(struct ixgbe_adapter *adapter, u8 tc) } /** + * ixgbe_set_prio_tc_map - Configure netdev prio tc map + * @adapter: Pointer to adapter struct + * + * Populate the netdev user priority to tc map + */ +static void ixgbe_set_prio_tc_map(struct ixgbe_adapter *adapter) +{ + struct net_device *dev = adapter->netdev; + struct ixgbe_dcb_config *dcb_cfg = &adapter->dcb_cfg; + struct ieee_ets *ets = adapter->ixgbe_ieee_ets; + u8 prio; + + for (prio = 0; prio < MAX_USER_PRIORITY; prio++) { + u8 tc = 0; + + if (adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE) + tc = ixgbe_dcb_get_tc_from_up(dcb_cfg, 0, prio); + else if (ets) + tc = ets->prio_tc[prio]; + + netdev_set_prio_tc_map(dev, prio, tc); + } +} + +/** * ixgbe_setup_tc - configure net_device for multiple traffic classes * * @netdev: net device to configure @@ -6633,6 +6653,8 @@ int ixgbe_setup_tc(struct net_device *dev, u8 tc) if (tc) { netdev_set_num_tc(dev, tc); + ixgbe_set_prio_tc_map(adapter); + adapter->flags |= IXGBE_FLAG_DCB_ENABLED; adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE; @@ -6642,6 +6664,7 @@ int ixgbe_setup_tc(struct net_device *dev, u8 tc) } } else { netdev_reset_tc(dev); + if (adapter->hw.mac.type == ixgbe_mac_82598EB) adapter->hw.fc.requested_mode = adapter->last_lfc_mode; @@ -7005,7 +7028,11 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev, #endif if (ii->mac == ixgbe_mac_82598EB) +#ifdef CONFIG_IXGBE_DCB + indices = min_t(unsigned int, indices, MAX_TRAFFIC_CLASS * 4); +#else indices = min_t(unsigned int, indices, IXGBE_MAX_RSS_INDICES); +#endif else indices = min_t(unsigned int, indices, IXGBE_MAX_FDIR_INDICES); |