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path: root/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
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2013-06-13net: ethernet: stmicro: stmmac: Fix compile error when STMMAC_XMIT_DEBUG usedDinh Nguyen
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c: In function: stmmac_xmit drivers/net/ethernet/stmicro/stmmac/stmmac_main.c:1902:74: error: expected ) before __func__ Signed-off-by: Dinh Nguyen <dinguyen@altera.com> Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com> CC: David S. Miller <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-19net: vlan: rename NETIF_F_HW_VLAN_* feature flags to NETIF_F_HW_VLAN_CTAG_*Patrick McHardy
Rename the hardware VLAN acceleration features to include "CTAG" to indicate that they only support CTAGs. Follow up patches will introduce 802.1ad server provider tagging (STAGs) and require the distinction for hardware not supporting acclerating both. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-08stmmac: prefetch all dma_erx when use extend_descGiuseppe CAVALLARO
This patch is to prefetch, in the stmmac_rx, the whole dma_erx descriptor in case of using the extended descriptors. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-08stmmac: code tidy-upGiuseppe CAVALLARO
This patch tidies up the code. I have run Linden (and verified with checkpatch) many part of the driver trying to reorganize some sections respecting the codying-style rules in the points where it was not done. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-08stmmac: improve/review and fix kernel-docGiuseppe CAVALLARO
this patch reviews/improves and adds some fixes in the code doc. Also kernel-doc passes w/o any warnings. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-08stmmac: modified pcs mode support for SGMIIByungho An
This patch modifies the pcs mode support for SGMII. Even though SGMII does auto-negotiation with phy, it needs stmmac_init_phy and stmmac_mdio_register function for initializing phy. Signed-off-by: Byungho An <bh74.an@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-26stmmac: add the support for PTP hw clock driverRayagond Kokatanur
This patch implements PHC (ptp hardware clock) driver for stmmac driver to support 1588 PTP. V2: added support for FINE method, reduced loop delay and review spinlock. Signed-off-by: Rayagond Kokatanur <rayagond@vayavyalabs.com> Hacked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-26stmmac: add IEEE PTPv1 and PTPv2 support.Rayagond Kokatanur
This patch enhances the stmmac driver to support IEEE 1588-2002 PTP (Precision Time Protocol) version 1 and IEEE 1588-2008 PPT version 2. Precision Time Protocol(PTP),which enables precise synchronization of clocks in measurement and control systems implemented with technologies such as network communication,local computing, & distributed objects. Both PTPv1 and PTPv2 is selected at run-time using the HW capability register. The PTPv1 TimeStamp support can be used on chips that have the normal descriptor structures and PTPv2 TimeStamp support can be used on chips that have the Extended descriptors(DES4-5-6-7). All such sanity checks are done and verified by using HW capability register. V2: in this version the ethtool support has been included in this patch; Koptions have been completely removed (previously added to select PTP and PTPv2). PTPv1 and PTPv2 is now added in a single patch instead of two patches. get_timestamp() and get_systemtime() L/H have been combined into single APIs. Signed-off-by: Rayagond Kokatanur <rayagond@vayavyalabs.com> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-26stmmac: add tx_skbuff_dma to save descriptors used by PTPRayagond Kokatanur
This patch adds a new pointer variable called "tx_skbuff_dma" to private data structure. This variable will holds the physical address of packet to be transmitted & same will be used to free/unmap the memory once the corresponding packet is transmitted by device. Prior to this patch the descriptor buffer pointer(ie des2) itself was being used for freeing/unmapping the buffer memory. But in case PTP v1 with normal descriptor the field(des2) will be overwritten by device with timestamp value, hence driver will loose the buffer pointer to be freed/unmapped. Signed-off-by: Rayagond Kokatanur <rayagond@vayavyalabs.com> Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-26stmmac: initial support to manage pcs modesGiuseppe CAVALLARO
This patch adds the minimal support to manage the PCS modes (RGMII/SGMII) and restart the ANE. Both TBI and RTBI are not yet supported. Thanks to Byungho that wrote some part of this code and tested SGMII too. The only thing to be fixed is the get/set pause in ethtool. Signed-off-by: Byungho An <bh74.an@samsung.com> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-26stmmac: start adding pcs and rgmii core irqGiuseppe CAVALLARO
This patch starts adding in the main ISR the management of the PCS and RGMII/SGMII core interrupts. This is to help further development on this area. Currently the core irq handler only clears the PCS and S-R_MII interrupts and reports the event in the ethtool stats. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Tested-by: Byungho An <bh74.an@samsung.com> Cc: Udit Kumar <udit-dlh.kumar@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-26stmmac: support extend descriptorsGiuseppe CAVALLARO
This patch is to support the extend descriptors available in the chips newer than the 3.50. In case of the extend descriptors cannot be supported, at runtime, the driver will continue to work using the old style. In detail, this support extends the main descriptor structure adding new descriptors: 4, 5, 6, 7. The desc4 gives us extra information about the received ethernet payload when it is carrying PTP packets or TCP/UDP/ICMP over IP packets. The descriptors 6 and 7 are used for saving HW L/H timestamps (PTP). V2: this new version removes the Koption added in the first implementation because all the checks now to verify if the extended descriptors are actually supported happen at probe time. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-26stmmac: reorganize chain/ring modes removing KoptionsGiuseppe CAVALLARO
Previously we had two Koptions to decide if the stmmac had to use either a ring or a chain to manage its descriptors. This patch removes the Kernel configuration options and it allow us to use the chain mode by passing a module option. Ring mode continues to be the default. Also with this patch, it will be easier to validate the driver built and guarantee that all the two modes always compile fine. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-15drivers:net: Remove dma_alloc_coherent OOM messagesJoe Perches
I believe these error messages are already logged on allocation failure by warn_alloc_failed and so get a dump_stack on OOM. Remove the unnecessary additional error logging. Around these deletions: o Alignment neatening. o Remove unnecessary casts of dma_alloc_coherent. o Hoist assigns from ifs. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-18Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net into netDavid S. Miller
Pull in 'net' to take in the bug fixes that didn't make it into 3.8-final. Also, deal with the semantic conflict of the change made to net/ipv6/xfrm6_policy.c A missing rt6->n neighbour release was added to 'net', but in 'net-next' we no longer cache the neighbour entries in the ipv6 routes so that change is not appropriate there. Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-15stmmac: fix the parsing of the eee_timer parameterGiuseppe CAVALLARO
This pacth fixes the parsing of the eee_timer driver parameter. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Conflicts: drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c The bnx2x gso_type setting bug fix in 'net' conflicted with changes in 'net-next' that broke the gso_* setting logic out into a seperate function, which also fixes the bug in question. Thus, use the 'net-next' version. Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-10stmmac: fix macro used for debugging the xmitGiuseppe CAVALLARO
This patch fixes the name of the macro used for debugging the transmit process. I used STMMAC_TX_DEBUG instead of STMMAC_XMIT_DEBUG. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-04ethernet: Remove unnecessary alloc/OOM messages, alloc cleanupsJoe Perches
alloc failures already get standardized OOM messages and a dump_stack. Convert kzalloc's with multiplies to kcalloc. Convert kmalloc's with multiplies to kmalloc_array. Fix a few whitespace defects. Convert a constant 6 to ETH_ALEN. Use parentheses around sizeof. Convert vmalloc/memset to vzalloc. Remove now unused size variables. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-14net: phy: remove flags argument from phy_{attach, connect, connect_direct}Florian Fainelli
The flags argument of the phy_{attach,connect,connect_direct} functions is then used to assign a struct phy_device dev_flags with its value. All callers but the tg3 driver pass the flag 0, which results in the underlying PHY drivers in drivers/net/phy/ not being able to actually use any of the flags they would set in dev_flags. This patch gets rid of the flags argument, and passes phydev->dev_flags to the internal PHY library call phy_attach_direct() such that drivers which actually modify a phy device dev_flags get the value preserved for use by the underlying phy driver. Acked-by: Kosta Zertsekel <konszert@marvell.com> Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-14stmmac: fix platform driver unregisteringKonstantin Khlebnikov
This patch fixes platform device drivers unregistering and adds proper error handing on module loading. Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org> Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-26stmmac: add Rx watchdog support to mitigate the DMA irqsGiuseppe CAVALLARO
GMAC devices newer than databook 3.40 has an embedded timer that can be used for mitigating the number of interrupts. So this patch adds this optimizations. At any rate, the Rx watchdog can be disable (on bugged HW) by passing from the platform the riwt_off field. In this implementation the rx timer stored in the Reg9 is fixed to the max value. This will be tuned by using ethtool. V2: added a platform parameter to force to disable the rx-watchdog for example on new core where it is bugged. V3: do not disable NAPI when Rx watchdog is used. V4: a new extra statistic field has been added to show the early receive status in the interrupt handler. This patch also adds an extra check to avoid to call napi_schedule when the DMA_INTR_ENA_RIE bit is disabled in the Interrupt Mask register. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-26stmmac: add the initial tx coalesce schemaGiuseppe CAVALLARO
This patch adds a new schema used for mitigating the number of transmit interrupts. It is based on a SW timer and a threshold value. The timer is used to periodically call the stmmac_tx_clean function; the threshold is used for setting the IC (Interrupt on Completion bit). The ISR will then invoke the poll method. Also the patch improves some ethtool stat fields. V2: review the logic to manage the IC bit in the TDESC that was bugged because it didn't take care about the fragments. Also fix the tx_count_frames that has not to be limited to TX DMA ring. Thanks to Ben Hutchings. V3: removed the spin_lock irqsave/restore as D. Miller suggested. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-26stmmac: remove dead code for STMMAC_TIMER supportGiuseppe CAVALLARO
The TIMER option is not longer supported and this code can be considered dead for this driver in the new kernel series. In fact, It was not updated at all and never used. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-07net: remove skb recyclingEric Dumazet
Over time, skb recycling infrastructure got litle interest and many bugs. Generic rx path skb allocation is now using page fragments for efficient GRO / TCP coalescing, and recyling a tx skb for rx path is not worth the pain. Last identified bug is that fat skbs can be recycled and it can endup using high order pages after few iterations. With help from Maxime Bizon, who pointed out that commit 87151b8689d (net: allow pskb_expand_head() to get maximum tailroom) introduced this regression for recycled skbs. Instead of fixing this bug, lets remove skb recycling. Drivers wanting really hot skbs should use build_skb() anyway, to allocate/populate sk_buff right before netif_receive_skb() Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Maxime Bizon <mbizon@freebox.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-21net/stmmac: Use clk_prepare_enable and clk_disable_unprepareStefan Roese
This patch fixes an issue introduced by commit ID 6a81c26f [net/stmmac: remove conditional compilation of clk code], which switched from the internal stmmac_clk_{en}{dis}able calls to clk_{en}{dis}able. By this, calling clk_prepare and clk_unprepare was removed. clk_{un}prepare is mandatory for platforms using common clock framework. Since these drivers are used by SPEAr platform, which supports common clock framework, add clk_{un}prepare() support for them. Otherwise the clocks are not correctly en-/disabled and ethernet support doesn't work. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-20net/stmmac: fix issue of clk_get for Loongson1B.Kelvin Cheung
When getting clock, give a chance to the CPUs without DT support, which use Common Clock Framework, such as Loongson1B. Signed-off-by: Kelvin Cheung <keguang.zhang@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-30net/stmmac: remove conditional compilation of clk codeViresh Kumar
With addition of dummy clk_*() calls for non CONFIG_HAVE_CLK cases in clk.h, there is no need to have clk code enclosed in #ifdef CONFIG_HAVE_CLK, #endif macros. This also fixes error paths of probe(), as a goto is required in this patch. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com> Acked-by: David S. Miller <davem@davemloft.net> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Mike Turquette <mturquette@linaro.org> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: viresh kumar <viresh.linux@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Conflicts: net/batman-adv/bridge_loop_avoidance.c net/batman-adv/bridge_loop_avoidance.h net/batman-adv/soft-interface.c net/mac80211/mlme.c With merge help from Antonio Quartulli (batman-adv) and Stephen Rothwell (drivers/net/usb/qmi_wwan.c). The net/mac80211/mlme.c conflict seemed easy enough, accounting for a conversion to some new tracing macros. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-09stmmac: Fix for nfs hang on multiple rebootDeepak Sikri
It was observed that during multiple reboots nfs hangs. The status of receive descriptors shows that all the descriptors were in control of CPU, and none were assigned to DMA. Also the DMA status register confirmed that the Rx buffer is unavailable. This patch adds the fix for the same by adding the memory barriers to ascertain that the all instructions before enabling the Rx or Tx DMA are completed which involves the proper setting of the ownership bit in DMA descriptors. Signed-off-by: Deepak Sikri <deepak.sikri@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-01stmmac: add the Energy Efficient Ethernet supportGiuseppe CAVALLARO
This patch adds the Energy Efficient Ethernet support to the stmmac. Please see the driver's documentation for further details about this support in the driver. Thanks also goes to Rayagond Kokatanur for his first implementation. Note: to clearly manage and expose the lpi interrupt status and eee ethtool stats I've had to do some modifications to the driver's design and I found really useful to move other parts of the code (e.g. mmc irq stat) in the main directly. So this means that some core has been reworked to introduce the EEE. v1: initial patch v2: fixed some sparse issues (typos) v3: erroneously sent the v2 renamed as v3 v4: o Fixed the return value of the stmmac_eee_init as suggested by D.Miller o Totally reviewed the ethtool support for EEE o Added a new internal parameter to tune the SW timer for TX LPI. v5: do not change any eee setting in case of the stmmac_ethtool_op_set_eee fails (it has to return -EOPNOTSUPP in that case). Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-01stmmac: do not use strict_strtoul but kstrtointGiuseppe CAVALLARO
This patch replaces the obsolete strict_strtoul with kstrtoint. v2: also removed casting on kstrtoul. v3: use kstrtoint instead of kstrtoul due to all vars are integer. thanks to E. Dumazet. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Conflicts: MAINTAINERS drivers/net/wireless/iwlwifi/pcie/trans.c The iwlwifi conflict was resolved by keeping the code added in 'net' that turns off the buggy chip feature. The MAINTAINERS conflict was merely overlapping changes, one change updated all the wireless web site URLs and the other changed some GIT trees to be Johannes's instead of John's. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-07stmmac: fix driver built w/ w/o both pci and platf modulesGiuseppe CAVALLARO
The commit ba27ec66ffeb78cbf fixes the Kconfig of the driver when built as module allowing to select/unselect the PCI and Platform modules that are not anymore mutually exclusive. This patch fixes and guarantees that the driver builds on all the platforms w/ w/o PCI and when select/unselect the two stmmac supports. In case of there are some problems on both the configuration and the pci/pltf registration the module_init will fail. v2: set the CONFIG_STMMAC_PLATFORM enabled by default. I've just noticed that this can actually help on some configurations that don't enable any STMMAC options by default (e.g. SPEAr). v3: change printk level when do not register the driver. Reported-by: Fengguang Wu <wfg@linux.intel.com> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
2012-06-06stmmac: fix driver Kconfig when built as moduleGiuseppe CAVALLARO
This patches fixes the driver when built as dynamic module. In fact, the platform part cannot be built and the probe fails (thanks to Bob Liu that reported this bug). v2: as D. Miller suggested, it is not necessary to make the pci and the platform code mutually exclusive. Having both could also help, at built time ,to verify that all the code is validated and compiles fine. v3: removed wrong Reviewed-by from the patch Reported-by: Bob Liu <lliubbo@gmail.com> cc: Rayagond Kokatanur <rayagond@vayavyalabs.com> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-06stmmac: fix driver's doc when run kernel-doc scriptGiuseppe CAVALLARO
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-04stmmac: remove two useless initialisationsGiuseppe CAVALLARO
This patch removes two useless initialisations in the stmmac_rx and stmmac_tx functions. In the former, the count variable was reset twice and in the stmmac_tx we only need to increment the dirty pointer w/o setting the entry variable. v2: review the subject and comment that was not clear in my first version. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-21drivers/net/stmmac: seq_file fix memory leakDjalal Harouni
Use single_release() instead of seq_release() to free memory allocated by single_open(). Signed-off-by: Djalal Harouni <tixxdz@opendz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-14stmmac: fix suspend/resume lockingGiuseppe CAVALLARO
Upon resume from standby, there is a possible interrupt unsafe locking scenario raised when configure the Kernel with CONFIG_PROVE_LOCKING. So this patch fixes that in PM driver stuff by calling lock/unlock_irqsave/restore. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-14stmmac: add mixed burst for DMAGiuseppe CAVALLARO
In mixed burst (MB) mode, the AHB master always initiates the bursts with fixed-size when the DMA requests transfers of size less than or equal to 16 beats. This patch adds the MB support and the flag that can be passed from the platform to select it. MB mode can also give some benefits in terms of performances on some platforms. v2: fixed Coding Style Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-14stmmac: extend mac addr reg and fix perfect fileringGiuseppe CAVALLARO
This patch is to extend the number of MAC address registers for 16 to 32. In fact, other new 16 registers are available in new chips and this can help on perfect filter mode for unicast. This patch also fixes the perfect filtering mode by setting the bit 31 in the MAC address registers. v2: fixed Coding Style. Signed-off-by: Gianni Antoniazzi <gianni.antoniazzi-ext@st.com> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-19stmmac: do not fail when probe and there is no csr clk definedGiuseppe CAVALLARO
On some platforms, for example where we are doing the bring-up, the csr clock is not passed from the framework and the Ethernet device driver is failing when it can work w/o any issues and using the default values. So this patch just warnings the case of the csr clock cannot be acquired but w/o failing the probe step. I have just tested it on ST STiH415 SoC (ARM). Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-19stmmac: verify the dma_cfg platform fieldsGiuseppe CAVALLARO
Recently the dma parameters that can be passed from the platform have been moved from the plat_stmmacenet_data to the stmmac_dma_cfg. In case of this new structure is not well allocated the driver can fails. This is an example how this field is managed in ST platforms static struct stmmac_dma_cfg gmac_dma_setting = { .pbl = 32, }; static struct plat_stmmacenet_data stih415_ethernet_platform_data[] = { { .dma_cfg = &gmac_dma_setting, .has_gmac = 1, [snip] This patch so verifies that the dma_cfg passed from the platform. In case of it is NULL there is no reason that the driver has to fail and some default values can be passed. These are ok for all the Synopsys chips and could impact on performances, only. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> cc: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-19stmmac: Move the mdio_register/_unregister in probe/removeFrancesco Virlinzi
This patch moves the mdio_register/_unregister in probe/remove functions and this also is required when hibernation on disk is done. Signed-off-by: Francesco Virlinzi <francesco.virlinzi@st,com> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st,com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
2012-04-04stmmac: MDC clock dynamically based on the csr clock inputGiuseppe CAVALLARO
If a specific clk_csr value is passed from the platform this means that the CSR Clock Range selection cannot be changed at run-time and it is fixed (as reported in the driver documentation). Viceversa the driver will try to set the MDC clock dynamically according to the actual clock input. Signed-off-by: Deepak Sikri <deepak.sikri@st.com> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Reviewed-by: Francesco Virlinzi <francesco.virlinzi@st.com> Reviewed-by: David Laight <david.laight@aculab.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-04stmmac: add clk management supportGiuseppe CAVALLARO
this patch adds the way to enable/disable the MAC clock when call the open/close and resume/restore functions. This has been tested on ST platforms and SPEAr; thanks to Francesco and Deepak. Signed-off-by: Deepak Sikri <deepak.sikri@st.com> Tested-by: Francesco Virlinzi <francesco.virlinzi@st.com> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-04stmmac: re-work the internal GMAC DMA platf parametersDeepak SIKRI
This patch re-works the internal GMAC DMA parameters passed from the platform. In the past, we only passed the pbl but, with new core, other parameters can be passed and are mandatory on some platforms. New parameters are documented in stmmac.txt because this patch has an impact for many platforms. Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com> Signed-off-by: Vikas Manocha <vikas.manocha@st.com> Signed-off-by: Deepak Sikri <deepak.sikri@st.com> Hacked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-04stmmac: sanitize the rx coe and add the type-1 csum (v2)Deepak SIKRI
This patch sanities the RX coe and adds the Type-1 Rx checksum offload engine (COE). So the RX COE can be passed through the platform but can be fixed at run-time in case of the core has the HW capability register. Also to support the Type-1 Rx COE the driver must append the HW checksum at the end of payload in case the Rx checksum engine was used to offload the HW checksum. This v2 version also fixes the IPC that has to be enabled and verified. Signed-off-by: Deepak Sikri <deepak.sikri@st.com> Hacked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>