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path: root/drivers/net/tg3.c
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2010-09-15tg3: phy tmp variable roundupMatt Carlson
The tg3's phy routines define temporary variables in many locations within the same routine. This patch unifies all temporary variables into one location. Reviewed-by: Benjamin Li <benli@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-15tg3: Dynamically allocate VPD data memoryMatt Carlson
This patch eases stack pressure by dynamically allocating the memory used to temporarily store VPD data. Reviewed-by: Benjamin Li <benli@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-15tg3: Use skb_is_gso_v6()Matt Carlson
This patch converts the driver to prefer the skb_is_gso_v6() helper over the explicit inlined version. Reviewed-by: Benjamin Li <benli@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-15tg3: Move producer ring struct to tg3_napiMatt Carlson
Now that each NAPI instance has its own producer ring, it no longer makes sense to keep the producer ring structure external. This patch migrates the producer ring struct to tg3_napi and pivots the code to the new implementation. Reviewed-by: Benjamin Li <benli@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-15tg3: Clarify semantics of TG3_IRQ_MAX_VECSMatt Carlson
TG3_IRQ_MAX_VECS should be seen as the maximum number of vectors that any device could be expected to use. tp->irq_max represents the maximum number of vectors the current device can use. This patch clarifies the semantics of the code to match the above description. Reviewed-by: Benjamin Li <benli@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-15tg3: Unlock 5717 B0+ supportMatt Carlson
This patch adjusts the driver to use the tg3_start_xmit_dma_bug() transmit routine for all revisions of 5717 asic rev devices and then allows the driver to attach to B0 and later devices. Reviewed-by: Benjamin Li <benli@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-15tg3: Don't send APE events for NCSI firmwareMatt Carlson
NCSI firmware does not accept APE events. It relies on a "driver state" location in shared memory to tell it what the driver's current state is. This patch pivots the code to use the new driver state scheme. Reviewed-by: Benjamin Li <benli@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-15tg3: Disable TSSMatt Carlson
It was recently discovered that enabling TSS can lockup the device. This patch disables the feature until a suitable workaround can be found. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-15tg3: Fix read DMA FIFO overruns on recent devicesMatt Carlson
Earlier versions of tg3 devices had a problem where the read DMA FIFO could be overrun in certain edge conditions. The fix was to limit the number of rx BDs the hardware would fetch at a time. For later devices (5761, 5784 and later ASIC revs), there is a hardware fix that must be enabled to fix the same problem. This patch adds that hardware fix. There is a gap in the ASIC revision lineage where neither fix is applied. This is intentional as these ASIC revisions are not afflicted by the bug. Reviewed-by: Benjamin Li <benli@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-02drivers/net: avoid some skb->ip_summed initializationsEric Dumazet
fresh skbs have ip_summed set to CHECKSUM_NONE (0) We can avoid setting again skb->ip_summed to CHECKSUM_NONE in drivers. Introduce skb_checksum_none_assert() helper so that we keep this assertion documented in driver sources. Change most occurrences of : skb->ip_summed = CHECKSUM_NONE; by : skb_checksum_none_assert(skb); Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02tg3: Update version to 3.113Matt Carlson
This patch updates the tg3 version to 3.113. Reviewed-by: Benjamin Li <benli@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02tg3: Migrate tg3_flags to phy_flagsMatt Carlson
This patch moves most of the phy related flag definitions over to the phyflags member and changes the code accordingly. Reviewed-by: Benjamin Li <benli@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02tg3: Create phy_flags and migrate phy_is_low_powerMatt Carlson
This patch deletes the link_config.phy_is_low_power flag and creates a new phy_flags device member to store all phy related settings. All the code is converted accordingly. Reviewed-by: Benjamin Li <benli@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02tg3: Add phy-related preprocessor constantsMatt Carlson
This patch replaces some instances of hardcoded phy register values with preprocessor equivalents. Reviewed-by: Benjamin Li <benli@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02tg3: Add error reporting to tg3_phydsp_write()Matt Carlson
This patch adds error reporting to the tg3_phydsp_write() function and converts a few more locations to use this function over the inlined equivalent. Reviewed-by: Benjamin Li <benli@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02tg3: Improve small packet performanceMatt Carlson
smp_mb() inside tg3_tx_avail() is used twice in the normal tg3_start_xmit() path (see illustration below). The full memory barrier is only necessary during race conditions with tx completion. We can speed up the tx path by replacing smp_mb() in tg3_tx_avail() with a compiler barrier. The compiler barrier is to force the compiler to fetch the tx_prod and tx_cons from memory. In the race condition between tg3_start_xmit() and tg3_tx(), we have the following situation: tg3_start_xmit() tg3_tx() if (!tg3_tx_avail()) BUG(); ... if (!tg3_tx_avail()) netif_tx_stop_queue(); update_tx_index(); smp_mb(); smp_mb(); if (tg3_tx_avail()) if (netif_tx_queue_stopped() && netif_tx_wake_queue(); tg3_tx_avail()) With smp_mb() removed from tg3_tx_avail(), we need to add smp_mb() to tg3_start_xmit() as shown above to properly order netif_tx_stop_queue() and tg3_tx_avail() to check the ring index. If it is not strictly ordered, the tx queue can be stopped forever. This improves performance by about 3% with 2 ports running bi-directional 64-byte packets. Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02tg3: Remove 5720, 5750, and 5750MMatt Carlson
These devices were never released to the public. Reviewed-by: Benjamin Li <benli@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02tg3: Detect APE firmware typesMatt Carlson
This patch adds code to determine the APE firmware type and report this along with the firmware version. Reviewed-by: Benjamin Li <benli@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02tg3: Restrict ASPM workaround devlistMatt Carlson
The ASPM workaround setting obtained from NVRAM only works with devices older than 5717. This patch enforces the restriction. Reviewed-by: Benjamin Li <benli@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02tg3: Manage gphy power for CPMU-less devs onlyMatt Carlson
This patch changes the code to only manage the PCIe gphy power for CPMU-less devices only. The CPMU takes over management for newer chips. Reviewed-by: Benjamin Li <benli@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02tg3: Don't access phy test ctrl reg for 5717+Matt Carlson
The phy test register location has been repurposed for 5717+ devices. This patch changes the code to avoid this location for these devices. Reviewed-by: Benjamin Li <benli@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02tg3: Create TG3_FLG3_5717_PLUS flagMatt Carlson
This patch creates a TG3_FLG3_5717_PLUS flag to collectively describe the set of changes in the ASIC that will apply to all future chip revisions. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02tg3: Disable TSS also during tg3_close()Matt Carlson
The TSS flag needs to be turned off during tg3_close(). If the device fails to allocate more than one MSI-X vector the next time the device is brought up, transmits will fail. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02tg3: Add 5784 ASIC rev to earlier PCIe MPS fixMatt Carlson
tg3 commit e7126997342560533317d8467e8516119ebcbd21 entitled "tg3: Preserve PCIe MPS setting for new devs" attempted to ensure the PCIe link negotiated Maximum Payload Size (MPS) setting was 128 bytes for all devices that didn't support higher speeds. The 5784 device was mistakenly added to this list when it shouldn't have. This patch removes the 5784 ASIC rev devices from that list. Reviewed-by: Benjamin Li <benli@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-18net: preserve ifreq parameter when calling generic phy_mii_ioctl().Richard Cochran
The phy_mii_ioctl() function unnecessarily throws away the original ifreq. We need access to the ifreq in order to support PHYs that can perform hardware time stamping. Two maverick drivers filter the ioctl commands passed to phy_mii_ioctl(). This is unnecessary since phylib will check the command in any case. Signed-off-by: Richard Cochran <richard.cochran@omicron.at> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-11tg3: Update version to 3.112Matt Carlson
This patch updates the tg3 version to 3.112. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-11tg3: Fix some checkpatch errorsMatt Carlson
This patch fixes the following checkpatch errors: ERROR: do not use assignment in if condition + if ((mss = skb_shinfo(skb)->gso_size) != 0) { ERROR: do not use assignment in if condition + if ((mss = skb_shinfo(skb)->gso_size) != 0) { ERROR: space prohibited after that '!' (ctx:BxW) + if (! netif_carrier_ok(tp->dev) && ^ ERROR: space required after that ',' (ctx:VxV) +#define GET_REG32_LOOP(base,len) \ ^ ERROR: "(foo*)" should be "(foo *)" + memcpy(data, ((char*)&val) + b_offset, b_count); ERROR: do not use assignment in if condition + if ((err = tg3_do_mem_test(tp, mem_tbl[i].offset, Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-11tg3: Revert PCIe tx glitch fixMatt Carlson
This patch reverts commit 52cdf8526fe24f11d300b75458ddee017f3f4c88, entitled "tg3: Prevent a PCIe tx glitch". The problem does not have any visible side-effects and happens too early for the driver to do anything about it. The proper place for this code is within the device's bootcode. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-11tg3: Report driver version to firmwareMatt Carlson
This patch changes the code so that the driver version can be reported to the firmware in addition to the current use. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-11tg3: Relax 5717 serdes restrictionMatt Carlson
tg3 is coded to refuse to attach to 5717 serdes devices. Now that the hardware is better supported, we can relax this restriction. This patch also fixes a recently introduced bug which will cause serdes parallel detection not to work with 5780 class devices. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-11tg3: Fix IPv6 TSO code in tg3_start_xmit_dma_bug()Matt Carlson
The tg3_start_xmit_dma_bug() function was missing code to process IPv6 TSO packets. This patch adds the missing support. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-11tg3: Fix single MSI-X vector coalescingMatt Carlson
The interrupt coalescing setup code used the TG3_FLG2_USING_MSIX flag to determine whether or not to configure the rx coalescing parameters. This is incorrect for the single MSI-X vector case. This patch changes the code to look at the TG3_FLG3_ENABLE_RSS instead. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-11tg3: Revert RSS indir tbl setup changeMatt Carlson
This patch reverts commit 2601d8a0049c8b5d29cd5adb844a305a804e505f. A spectacular set of coincidences made it look as though the table was setup incorrectly. The original version was correct. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-08tg3: allow TSO on vlan devicesEric Dumazet
Similar to commit 72dccb01e8632aa (bnx2: Update vlan_features) In order to enable TSO on vlan devices, tg3 needs to update dev->vlan_features. Tested on HP NC326m (aka BCM5715S (rev a3)) Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-08tg3: 64 bit stats on all archesEric Dumazet
Now core network is able to handle 64 bit netdevice stats on 32 bit arches, we can provide them for tg3, since hardware maintains 64 bit counters. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-06tg3: Update version to 3.111Matt Carlson
This patch updates the tg3 version to 3.111. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-06tg3: Add 5719 PCI device and phy IDsMatt Carlson
This patch adds the 5719 PCI device and phy IDs. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-06tg3: Add 5719 ASIC revMatt Carlson
This patch adds the 5719 ASIC revision. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-06tg3: Use devfn to determine function numberMatt Carlson
The driver sometimes needs to know which function number the current device is. This patch changes the code to use devfn over internal register values. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-06tg3: 5717: Allow serdes link via parallel detectMatt Carlson
The 5717 serdes phy brings link up via parallel detection without any additional help from the driver. This patch changes the tg3_setup_fiber_mii_phy() function to detect and allow the use of this feature. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-06tg3: Allow single MSI-X vector allocationsMatt Carlson
This patch changes the code to make it legal to allocate only one MSI-X vector. It also fixes a bug where the driver was not checking for error return codes from pci_enable_msix(). Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-06tg3: Off-by-one error in RSS setupMatt Carlson
The driver was incorrectly programming the indirection table such that rx traffic intended for the second ring went to the first ring, rx traffic intended for the third ring went to the second ring, etc. This patch changes the code so that rx traffic is diverted to the proper ring. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-06tg3: Fix a memory leak on 5717+ devicesMatt Carlson
The rx resources for MSI-X interrupt vector 0 were not being freed correctly. This happens because the teardown loop continue's to the next loop iteration if it detects the tx ring for that vector is not setup, thus bypassing the rx teardown code. This patch moves the call to tg3_rx_prodring_free() earlier in the loop. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-06tg3: Avoid tx lockups on 5755+ devicesMatt Carlson
In certain edge conditions, internal tx resources can get corrupted. This patch enables a bit that will fix the problem. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-06tg3: Relocate APE mutex regs for 5717+Matt Carlson
The 5717 and later devices relocate the APE mutex registers. This patch organizes the code so that the driver can use the mutex registers in the old and new locations. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/e100.c drivers/net/e1000e/netdev.c
2010-04-26tg3: Fix INTx fallback when MSI failsAndre Detsch
tg3: Fix INTx fallback when MSI fails MSI setup changes the value of irq_vec in struct tg3 *tp. This attribute must be taken into account and restored before we try to do a new request_irq for INTx fallback. In powerpc, the original code was leading to an EINVAL return within request_irq, because the driver was trying to use the disabled MSI virtual irq number instead of tp->pdev->irq. Signed-off-by: Andre Detsch <adetsch@br.ibm.com> Acked-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-20tg3: Enable GRO by default.David S. Miller
This was merely an oversight when I added the *_gro_receive() calls. Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-13tg3: use the DMA state API instead of the pci equivalentsFUJITA Tomonori
This replace the PCI DMA state API (include/linux/pci-dma.h) with the DMA equivalents since the PCI DMA state API will be obsolete. No functional change. For further information about the background: http://marc.info/?l=linux-netdev&m=127037540020276&w=2 Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Matt Carlson <mcarlson@broadcom.com> Cc: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-13tg3: Update version to 3.110Matt Carlson
This patch updates the tg3 version to 3.110. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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