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path: root/drivers/net/ethernet/broadcom/genet
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* net: bcmgenet: power on MII block for all MII modesFlorian Fainelli2015-06-08
| | | | | | | | | | | | The RGMII block is currently only powered on when using RGMII or RGMII_NO_ID, which is not correct when using the GENET interface in MII or Reverse MII modes. We always need to power on the RGMII interface for this block to properly work, regardless of the MII mode in which we operate. Fixes: aa09677cba423 ("net: bcmgenet: add MDIO routines") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: bcmgenet: enable MoCA link state change detectionPetri Gynther2015-04-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, MoCA fixed PHYs are always in link-up state, regardless of whether the link is actually up or not. Add code to properly detect MoCA link state changes and to reflect the new state in MoCA fixed PHY. Only GENET V3 and V4 MACs are capable of detecting MoCA link state changes. The code works as follows: 1. GENET MAC detects MoCA link state change and issues UMAC_IRQ_LINK_UP or UMAC_IRQ_LINK_DOWN interrupt. 2. Link up/down interrupt is processed in bcmgenet_irq_task(), which calls phy_mac_interrupt(). 3. phy_mac_interrupt() updates the fixed PHY phydev->link and kicks the PHY state machine. 4. PHY state machine proceeds to read the fixed PHY link status register. 5. When the fixed PHY link status register is being read, the new function bcmgenet_fixed_phy_link_update() gets called. It copies the fixed PHY phydev->link value to the fixed PHY status->link. 6. PHY state machine receives the new link state of the fixed PHY. 7. MoCA fixed PHY link state now correctly reflects the real MoCA hardware link state. Signed-off-by: Petri Gynther <pgynther@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: bcmgenet: fix the call to phy_mac_interrupt()Petri Gynther2015-03-31
| | | | | | | On phy_mac_interrupt() call, the new_link parameter should be 0 or 1. Signed-off-by: Petri Gynther <pgynther@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: bcmgenet: add UMAC_IRQ_LINK_EVENTPetri Gynther2015-03-31
| | | | | | | Add #define UMAC_IRQ_LINK_EVENT to simplify link event handling code. Signed-off-by: Petri Gynther <pgynther@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: bcmgenet: fix bcmgenet_open()Petri Gynther2015-03-31
| | | | | | | | | | If bcmgenet_init_dma() fails, it cleans up after itself. Rx and Tx DMAs are off, and NAPI instances haven't been netif_napi_add()'ed. Therefore, we need to skip calling bcmgenet_fini_dma() on the error handling path. bcmgenet_resume() already does this correctly. Signed-off-by: Petri Gynther <pgynther@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: bcmgenet: remove __bcmgenet_fini_dma()Petri Gynther2015-03-31
| | | | | | | | bcmgenet_fini_dma() is the only caller of __bcmgenet_fini_dma(). Move __bcmgenet_fini_dma() code inside bcmgenet_fini_dma(). Signed-off-by: Petri Gynther <pgynther@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: bcmgenet: add UMAC_IRQ_RXDMA_DONE and UMAC_IRQ_TXDMA_DONEPetri Gynther2015-03-31
| | | | | | | | Add #define for UMAC_IRQ_RXDMA_DONE and UMAC_IRQ_TXDMA_DONE in order to simplify the code that handles Rx and Tx default queue interrupts. Signed-off-by: Petri Gynther <pgynther@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: bcmgenet: add support for multiple Rx queuesPetri Gynther2015-03-27
| | | | | | | | | | Add support for multiple Rx queues: 1. Add NAPI context per Rx queue 2. Modify Rx interrupt and Rx NAPI code to handle multiple Rx queues Signed-off-by: Petri Gynther <pgynther@google.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: bcmgenet: rework Rx NAPI codePetri Gynther2015-03-27
| | | | | | | | | | | | Introduce new bcmgenet functions to handle the NAPI calls to: netif_napi_add() napi_enable() napi_disable() netif_napi_del() Signed-off-by: Petri Gynther <pgynther@google.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: bcmgenet: rework Tx NAPI codePetri Gynther2015-03-27
| | | | | | | | | | | | Introduce new bcmgenet functions to handle the NAPI calls to: netif_napi_add() napi_enable() napi_disable() netif_napi_del() Signed-off-by: Petri Gynther <pgynther@google.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: bcmgenet: tweak init_umac()Petri Gynther2015-03-27
| | | | | | | | | | | | | | | Use more meaningful variable names int0_enable and int1_enable when enabling bcmgenet interrupts. For Rx default queue interrupts, use: UMAC_IRQ_RXDMA_BDONE | UMAC_IRQ_RXDMA_PDONE For Tx default queue interrupts, use: UMAC_IRQ_TXDMA_BDONE | UMAC_IRQ_TXDMA_PDONE Signed-off-by: Petri Gynther <pgynther@google.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: bcmgenet: simplify bcmgenet_init_dma()Petri Gynther2015-03-27
| | | | | | | | | | Do the two kcalloc() calls first, before proceeding into Rx/Tx DMA init. Makes the error case handling much simpler. Signed-off-by: Petri Gynther <pgynther@google.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Jaedon Shin <jaedon.shin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: bcmgenet: modify Tx ring int_enable and int_disable vectorsPetri Gynther2015-03-27
| | | | | | | | Remove unnecessary function parameter priv. Use ring->priv instead. Signed-off-by: Petri Gynther <pgynther@google.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: bcmgenet: remove priv->int0_mask and priv->int1_maskPetri Gynther2015-03-27
| | | | | | | | Remove unused priv->int0_mask and priv->int1_mask. Signed-off-by: Petri Gynther <pgynther@google.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: bcmgenet: power down and up GPHY during suspend/resumeFlorian Fainelli2015-03-23
| | | | | | | | | In case the interface is not used, power down the integrated GPHY during suspend. Similarly to bcmgenet_open(), bcmgenet_resume() powers on the GPHY prior to any UniMAC activity. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: bcmgenet: power up and down integrated GPHY when unusedFlorian Fainelli2015-03-23
| | | | | | | | | | | Power up the GPHY while we are bringing-up the network interface, and conversely, upon bring down, power the GPHY down. In order to avoid creating hardware hazards, make sure that the GPHY gets powered on during bcmgenet_open() prior to the UniMAC being reset as the UniMAC may start creating activity towards the GPHY if we reverse the steps. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: bcmgenet: implement GPHY power down sequenceFlorian Fainelli2015-03-23
| | | | | | | | Implement the GPHY power down sequence by setting all power down bits, putting the GPHY in reset, and finally cutting the 25Mhz reference clock. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: bcmgenet: fix GPHY power-up sequenceFlorian Fainelli2015-03-23
| | | | | | | | We were missing a number of extra steps and delays to power-up the GPHY, update the sequence to reflect the proper procedure here. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: bcmgenet: rename bcmgenet_ephy_power_upFlorian Fainelli2015-03-23
| | | | | | | | | In preparation for implementing the power down GPHY sequence, rename bcmgenet_ephy_power_up to illustrate that it is not EPHY specific but PHY agnostic, and add an "enable" argument. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: bcmgenet: update bcmgenet_ephy_power_up to clear CK25_DIS bitFlorian Fainelli2015-03-23
| | | | | | | | | The CK25_DIS bit controls whether a 25Mhz clock is fed to the GPHY or not, in preparation for powering down the integrated GPHY when relevant, make sure we clear that bit. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: bcmgenet: propagate errors from bcmgenet_power_downFlorian Fainelli2015-03-23
| | | | | | | | If bcmgenet_power_down() fails, we would want to propagate a return value from bcmgenet_wol_power_down_cfg() to know about this. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: bcmgenet: add support for Hardware Filter BlockPetri Gynther2015-03-15
| | | | | | | | Add support for Hardware Filter Block (HFB) so that incoming Rx traffic can be matched and directed to desired Rx queues. Signed-off-by: Petri Gynther <pgynther@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: bcmgenet: add support for xmit_moreFlorian Fainelli2015-03-13
| | | | | | | | | | | Delay the update of the TDMA producer index unless this is the last SKB in a batch, or the queue is already stopped. Move the check for whether the queue should be stopped before the xmit_more check to avoid locking the transmit queue in case there was a SKB submitted which has xmit_more set. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: bcmgenet: update ring producer index and buffer count in xmitFlorian Fainelli2015-03-13
| | | | | | | | | | | | | | | | | There is no need to have both bcmgenet_xmit_single() and bcmgenet_xmit_frag() perform a free_bds decrement and a prod_index increment by one. In case one of these functions fails to map a SKB or fragment for transmit, we will return and exit bcmgenet_xmit() with an error. We can therefore safely use our local copy of nr_frags to know by how much we should decrement the number of free buffers available, and by how much the producer count must be incremented and do this in the tail of bcmgenet_xmit(). Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Petri Gynther <pgynther@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: bcmgenet: rewrite bcmgenet_rx_refill()Petri Gynther2015-03-13
| | | | | | | | | | | | | | | | | | | | | | Currently, bcmgenet_desc_rx() calls bcmgenet_rx_refill() at the end of Rx packet processing loop, after the current Rx packet has already been passed to napi_gro_receive(). However, bcmgenet_rx_refill() might fail to allocate a new Rx skb, thus leaving a hole on the Rx queue where no valid Rx buffer exists. To eliminate this situation: 1. Rewrite bcmgenet_rx_refill() to retain the current Rx skb on the Rx queue if a new replacement Rx skb can't be allocated and DMA-mapped. In this case, the data on the current Rx skb is effectively dropped. 2. Modify bcmgenet_desc_rx() to call bcmgenet_rx_refill() at the top of Rx packet processing loop, so that the new replacement Rx skb is already in place before the current Rx skb is processed. Signed-off-by: Petri Gynther <pgynther@google.com> Tested-by: Jaedon Shin <jaedon.shin@gmail.com>-- Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: bcmgenet: collect Rx discarded packet countPetri Gynther2015-03-11
| | | | | | | | | | Bits 31:16 of RDMA_PROD_INDEX contain Rx discarded packet count, which are the Rx packets that had to be dropped by MAC hardware since there was no room on the Rx queue. Add code to collect this information into the netdev stats. Signed-off-by: Petri Gynther <pgynther@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2015-03-09
|\ | | | | | | | | | | | | | | | | | | | | Conflicts: drivers/net/ethernet/cadence/macb.c Overlapping changes in macb driver, mostly fixes and cleanups in 'net' overlapping with the integration of at91_ether into macb in 'net-next'. Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: bcmgenet: properly disable password matchingFlorian Fainelli2015-03-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | bcmgenet_set_wol() correctly sets MPD_PW_EN when a password is specified to match magic packets against, however, when we switch from a password-matching to a matching without password we would leave this bit turned on, and GENET would only match magic packets with passwords. This can be reproduced using the following sequence: ethtool -s eth0 wol g ethtool -s eth0 wol s sopass 00:11:22:33:44:55 ethtool -s eth0 wol g The simple fix is to clear the MPD_PWD_EN bit when WAKE_MAGICSECURE is not set. Fixes: c51de7f3976b ("net: bcmgenet: add Wake-on-LAN support code") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: bcmgenet: core changes for supporting multiple Rx queuesPetri Gynther2015-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | 1. Add struct bcmgenet_rx_ring to hold all necessary information for a single Rx queue. 2. Add bcmgenet_init_rx_queues() to initialize all Rx queues. 3. Modify bcmgenet_init_rx_ring() to initialize a single Rx queue. 4. Modify Rx interrupt path code to use per-queue data. 5. Modify bcmgenet_rx_refill() to use RxCB->bd_addr. Signed-off-by: Petri Gynther <pgynther@google.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: bcmgenet: rework Rx queue initPetri Gynther2015-03-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In preparation for supporting multiple Rx queues: 1. Move the initialization of priv->num_rx_bds, priv->rx_bds, and priv->rx_cbs from bcmgenet_init_rx_ring() to bcmgenet_init_dma() since they are not specific to a single Rx queue. Mimics the Tx init model where priv->num_tx_bds, priv->tx_bds, and priv->tx_cbs are initialized in bcmgenet_init_dma(). 2. Program DMA_MBUF_DONE_THRESH = 1 so that future Rx queues Q0-Q15 will get per-packet Rx interrupt. 3. Group DMA_START_ADDR, RDMA_READ_PTR, RDMA_WRITE_PTR, and DMA_END_ADDR initialization together. Mimics the Tx init model. 4. There is 1-to-1 mapping between RxCBs and RxBDs. Precalculate RxCB->bd_addr so that it can be used in the future. Signed-off-by: Petri Gynther <pgynther@google.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: bcmgenet: add GENET_Q16_RX_BD_CNT and hw_params->rx_bds_per_qPetri Gynther2015-03-06
| | | | | | | | | | | | | | | | In preparation for supporting multiple Rx queues, add GENET_Q16_RX_BD_CNT and hw_params->rx_bds_per_q. Signed-off-by: Petri Gynther <pgynther@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: bcmgenet: adjust the call to alloc_etherdev_mqs()Petri Gynther2015-03-06
| | | | | | | | | | | | | | | | | | | | | | In preparation for supporting multiple Rx queues, adjust the call to alloc_etherdev_mqs() to allow max GENET_MAX_MQ_CNT + 1 Rx queues. The actual number of Rx queues in use is correctly adjusted with: netif_set_real_num_rx_queues(priv->dev, priv->hw_params->rx_queues + 1); Signed-off-by: Petri Gynther <pgynther@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: bcmgenet: set hw_params->rx_queues = 0Petri Gynther2015-03-06
| | | | | | | | | | | | | | | | | | bcmgenet driver doesn't yet support multiple Rx queues. Set hw_params->rx_queues = 0 accordingly. The default Rx queue (Q16) is still created and operational. Signed-off-by: Petri Gynther <pgynther@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: bcmgenet: simplify __bcmgenet_tx_reclaim()Petri Gynther2015-03-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1. Use c_index and ring->c_index to determine how many TxCBs/TxBDs are ready for cleanup - c_index = the current value of TDMA_CONS_INDEX - TDMA_CONS_INDEX is HW-incremented and auto-wraparound (0x0-0xFFFF) - ring->c_index = __bcmgenet_tx_reclaim() cleaned up to this point on the previous invocation 2. Add bcmgenet_tx_ring->clean_ptr - index of the next TxCB to be cleaned - incremented as TxCBs/TxBDs are processed - value always in range [ring->cb_ptr, ring->end_ptr] 3. Fix incrementing of dev->stats.tx_packets - should be incremented only when tx_cb_ptr->skb != NULL These changes simplify __bcmgenet_tx_reclaim(). Furthermore, Tx ring size can now be any value. With the old code, Tx ring size had to be a power-of-2: num_tx_bds = ring->size; c_index &= (num_tx_bds - 1); last_c_index &= (num_tx_bds - 1); Signed-off-by: Petri Gynther <pgynther@google.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2015-03-03
|\| | | | | | | | | | | | | | | | | | | | | Conflicts: drivers/net/ethernet/rocker/rocker.c The rocker commit was two overlapping changes, one to rename the ->vport member to ->pport, and another making the bitmask expression use '1ULL' instead of plain '1'. Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: bcmgenet: fix software maintained statisticsFlorian Fainelli2015-03-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 44c8bc3ce39f ("net: bcmgenet: log RX buffer allocation and RX/TX dma failures") added a few software maintained statistics using BCMGENET_STAT_MIB_RX and BCMGENET_STAT_MIB_TX. These statistics are read from the hardware MIB counters, such that bcmgenet_update_mib_counters() was trying to read from a non-existing MIB offset for these counters. Fix this by introducing a special type: BCMGENET_STAT_SOFT, similar to BCMGENET_STAT_NETDEV, such that bcmgenet_get_ethtool_stats will read from the software mib. Fixes: 44c8bc3ce39f ("net: bcmgenet: log RX buffer allocation and RX/TX dma failures") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: bcmgenet: fix throughtput regressionJaedon Shin2015-02-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds bcmgenet_tx_poll for the tx_rings. This can reduce the interrupt load and send xmit in network stack on time. This also separated for the completion of tx_ring16 from bcmgenet_poll. The bcmgenet_tx_reclaim of tx_ring[{0,1,2,3}] operative by an interrupt is to be not more than a certain number TxBDs. It is caused by too slowly reclaiming the transmitted skb. Therefore, performance degradation of xmit after 605ad7f ("tcp: refine TSO autosizing"). Signed-off-by: Jaedon Shin <jaedon.shin@gmail.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: bcmgenet: rename bcmgenet_hw_params->bds_cnt and GENET_DEFAULT_BD_CNTPetri Gynther2015-02-24
| | | | | | | | | | | | | | | | | | | | bcmgenet_hw_params->bds_cnt and GENET_DEFAULT_BD_CNT are used only in Tx init. Rename them accordingly: - bcmgenet_hw_params->bds_cnt => bcmgenet_hw_params->tx_bds_per_q - GENET_DEFAULT_BD_CNT => GENET_Q16_TX_BD_CNT Signed-off-by: Petri Gynther <pgynther@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: bcmgenet: precalculate TxCB->bd_addrPetri Gynther2015-02-24
| | | | | | | | | | | | | | | | | | There is 1-to-1 mapping between TxCBs and TxBDs. Precalculate TxCB->bd_addr once in bcmgenet_init_dma() instead of doing it over and over needlessly in bcmgenet_get_txcb(). Signed-off-by: Petri Gynther <pgynther@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: bcmgenet: rework Tx queue initPetri Gynther2015-02-24
| | | | | | | | | | | | | | | | | | | | 1. Rename bcmgenet_init_multiq() to bcmgenet_init_tx_queues() 2. Fix bcmgenet_init_tx_queues() function description 3. Move Tx default queue init inside bcmgenet_init_tx_queues() 4. Modify bcmgenet_init_dma() to call bcmgenet_init_tx_queues() Signed-off-by: Petri Gynther <pgynther@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: bcmgenet: bcmgenet_init_tx_ring() cleanupPetri Gynther2015-02-24
|/ | | | | | | | | | | 1. Simplify function description 2. Rename function parameter write_ptr to start_ptr to better indicate use 3. Remove unnecessary local variable first_bd 4. Remove out-of-place comment "Unclassified traffic goes to ring 16" 5. Fix TDMA_WRITE_PTR register init Signed-off-by: Petri Gynther <pgynther@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge tag 'driver-core-3.19-rc1' of ↵Linus Torvalds2014-12-14
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core update from Greg KH: "Here's the set of driver core patches for 3.19-rc1. They are dominated by the removal of the .owner field in platform drivers. They touch a lot of files, but they are "simple" changes, just removing a line in a structure. Other than that, a few minor driver core and debugfs changes. There are some ath9k patches coming in through this tree that have been acked by the wireless maintainers as they relied on the debugfs changes. Everything has been in linux-next for a while" * tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits) Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries" fs: debugfs: add forward declaration for struct device type firmware class: Deletion of an unnecessary check before the function call "vunmap" firmware loader: fix hung task warning dump devcoredump: provide a one-way disable function device: Add dev_<level>_once variants ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries ath: use seq_file api for ath9k debugfs files debugfs: add helper function to create device related seq_file drivers/base: cacheinfo: remove noisy error boot message Revert "core: platform: add warning if driver has no owner" drivers: base: support cpu cache information interface to userspace via sysfs drivers: base: add cpu_device_create to support per-cpu devices topology: replace custom attribute macros with standard DEVICE_ATTR* cpumask: factor out show_cpumap into separate helper function driver core: Fix unbalanced device reference in drivers_probe driver core: fix race with userland in device_add() sysfs/kernfs: make read requests on pre-alloc files use the buffer. sysfs/kernfs: allow attributes to request write buffer be pre-allocated. fs: sysfs: return EGBIG on write if offset is larger than file size ...
| * net: ethernet: broadcom: genet: drop owner assignment from platform_driversWolfram Sang2014-10-20
| | | | | | | | | | | | | | A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
* | net: bcmgenet: add support for new GENET PHY revision schemeFlorian Fainelli2014-12-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Starting with GPHY revision G0, the GENET register layout has changed to use the same numbering scheme as the Starfighter 2 switch. This means that GPHY major revision is in bits 15:12, minor in bits 11:8 and patch level is in bits 7:4. Introduce a small heuristic which checks for the old scheme first, tests for the new scheme and finally attempts to catch reserved values and aborts. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: bcmgenet: enable driver to work without a device treePetri Gynther2014-12-08
| | | | | | | | | | | | | | | | | | Modify bcmgenet driver so that it can be used on Broadcom 7xxx MIPS-based STB platforms without a device tree. Signed-off-by: Petri Gynther <pgynther@google.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: bcmgenet: support restarting auto-negotiationFlorian Fainelli2014-11-26
| | | | | | | | | | | | | | | | | | Hook a nway_reset ethtool callback to allow restarting the auto-negotiation process when asked to. We defer to the PHY library call to do the heavy lifting. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: bcmgenet: add EEE supportFlorian Fainelli2014-11-26
| | | | | | | | | | | | | | | | | | | | Allow enabling and disabling EEE using the designated ethtool getters and setters. GENET allows controlling EEE at the UniMAC, RBUF and TBUF levels. We also take care of restoring EEE after a suspend/resume cycle if it was enabled prior to suspending. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: bcmgenet: add register definitions for EEEFlorian Fainelli2014-11-26
| | | | | | | | | | | | | | | | Add register definitions to control EEE in the UniMAC, RBUF and TBUF register ranges. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: bcmgenet: log RX buffer allocation and RX/TX dma failuresFlorian Fainelli2014-11-21
| | | | | | | | | | | | | | | | | | | | To help troubleshoot heavy memory pressure conditions, add a bunch of statistics counter to log RX buffer allocation and RX/TX DMA mapping failures. These are reported like any other counters through the ethtool stats interface. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: bcmgenet: apply MII configuration in bcmgenet_open()Florian Fainelli2014-11-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In case an interface has been brought down before entering S3, and then brought up out of S3, all the initialization done during bcmgenet_probe() by bcmgenet_mii_init() calling bcmgenet_mii_config() is just lost since register contents are restored to their reset values. Re-apply this configuration anytime we call bcmgenet_open() to make sure our port multiplexer is properly configured to match the PHY interface. Since we are now calling bcmgenet_mii_config() everytime bcmgenet_open() is called, make sure we only print the message during initialization time not to pollute the console. Fixes: b6e978e50444 ("net: bcmgenet: add suspend/resume callbacks") Fixes: 1c1008c793fa4 ("net: bcmgenet: add main driver file") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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