- 27 Jun, 2014 23 commits
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Octavian Purdila authored
Signed-off-by:
Octavian Purdila <octavian.purdila@intel.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-nextDavid S. Miller authored
Jeff Kirsher says: ==================== Intel Wired LAN Driver Updates 2014-06-26 This series contains updates to i40e and i40evf. Kamil provides a cleanup patch to i40e where we do not need to acquire the NVM for shadow RAM checksum calculation, since we only read the shadow RAM through SRCTL register. Paul provides a fix for handling HMC for big endian architectures for i40e and i40evf. Mitch provides four cleanup and fixes for i40evf. Fix an issue where if the VF driver fails to complete early init, then rmmod can cause a softlock when the driver tries to stop a watchdog timer that never got initialized. So add a check to see if the timer is actually initialized before stopping it. Make the function i40evf_send_api_ver() return more useful information, instead of just returning -EIO by propagating firmware errors back to the caller and log a message if the PF sends an invalid reply. Fix up a log message that was missing a word, which makes the log message more readable. Fix an initialization failure if many VFs are instantiated at the same time and the VF module is autoloaded by simply resending firmware request if there is no response the first time. Jacob does a rename of the function i40e_ptp_enable() to i40e_ptp_feature_enable(), like he did for ixgbe, to reduce possible confusion and ambugity in the purpose of the function. Does follow on PTP work on i40e, like he did for ixgbe, by breaking the PTP hardware control from the ioctl command for timestamping mode. By doing this, we can maintain state about the 1588 timestamping mode and properly re-enable to the last known mode during a re-initialization of 1588 bits. Anjali cleans up the i40e driver where TCP-IPv4 filters were being added twice, which seems to be left over from when we had to add two PTYPEs for one filter. Fixes the flow director sideband logic to detect when there is a full flow director table. Also fixes the programming of FDIR where a couple of fields in the descriptor setup that were not being programmed, which left the opportunity for stale data to be pushed as part of the descriptor next time it was used. ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Jon Maloy says: ==================== tipc: new unicast transmission code As a step towards making the data transmission code more maintainable and performant, we introduce a number of new functions, both for building, sending and rejecting messages. The new functions will eventually be used for alla data transmission, user data unicast, service internal messaging, and multicast/broadcast. We start with this series, where we introduce the functions, and let user data unicast and the internal connection protocol use them. The remaining users will come in a later series. There are only minor changes to data structures, and no protocol changes, so the older functions can still be used in parallel for some time. Until the old functions are removed, we use temporary names for the new functions, such as tipc_build_msg2, tipc_link_xmit2. It should be noted that the first two commits are unrelated to the rest of the series. ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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Jon Paul Maloy authored
As a consequence of the recently introduced serialized access to the socket in commit 8d94168a761819d10252bab1f8de6d7b202c3baa ("tipc: same receive code path for connection protocol and data messages") we can make a number of simplifications in the detection and handling of connection congestion situations. - We don't need to keep two counters, one for sent messages and one for acked messages. There is no longer any risk for races between acknowledge messages arriving in BH and data message sending running in user context. So we merge this into one counter, 'sent_unacked', which is incremented at sending and subtracted from at acknowledge reception. - We don't need to set the 'congested' field in tipc_port to true before we sent the message, and clear it when sending is successful. (As a matter of fact, it was never necessary; the field was set in link_schedule_port() before any wakeup could arrive anyway.) - We keep the conditions for link congestion and connection connection congestion separated. There would otherwise be a risk that an arriving acknowledge message may wake up a user sleeping because of link congestion. - We can simplify reception of acknowledge messages. We also make some cosmetic/structural changes: - We rename the 'congested' field to the more correct 'link_cong´. - We rename 'conn_unacked' to 'rcv_unacked' - We move the above mentioned fields from struct tipc_port to struct tipc_sock. Signed-off-by:
Jon Maloy <jon.maloy@ericsson.com> Reviewed-by:
Erik Hugne <erik.hugne@ericsson.com> Reviewed-by:
Ying Xue <ying.xue@windriver.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Jon Paul Maloy authored
We simplify the code for receiving connection probes, leveraging the recently introduced tipc_msg_reverse() function. We also stick to the principle of sending a possible response message directly from the calling (tipc_sk_rcv or backlog_rcv) functions, hence making the call chain shallower and easier to follow. We make one small protocol change here, allowed according to the spec. If a protocol message arrives from a remote socket that is not the one we are connected to, we are currently generating a connection abort message and send it to the source. This behavior is unnecessary, and might even be a security risk, so instead we now choose to only ignore the message. The consequnce for the sender is that he will need longer time to discover his mistake (until the next timeout), but this is an extreme corner case, and may happen anyway under other circumstances, so we deem this change acceptable. Signed-off-by:
Jon Maloy <jon.maloy@ericsson.com> Reviewed-by:
Erik Hugne <erik.hugne@ericsson.com> Reviewed-by:
Ying Xue <ying.xue@windriver.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Jon Paul Maloy authored
As a preparation to eliminate port_lock we need to bring reception of connection protocol messages under proper protection of bh_lock_sock or socket owner. We fix this by letting those messages follow the same code path as incoming data messages. As a side effect of this change, the last reference to the function net_route_msg() disappears, and we can eliminate that function. Signed-off-by:
Jon Maloy <jon.maloy@ericsson.com> Reviewed-by:
Erik Hugne <erik.hugne@ericsson.com> Reviewed-by:
Ying Xue <ying.xue@windriver.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Jon Paul Maloy authored
Several functions in port.c, related to the port protocol and connection shutdown, need to send messages. We now convert them to use the new link send function. Signed-off-by:
Jon Maloy <jon.maloy@ericsson.com> Reviewed-by:
Erik Hugne <erik.hugne@ericsson.com> Reviewed-by:
Ying Xue <ying.xue@windriver.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Jon Paul Maloy authored
We move the message sending across established connections to use the message preparation and send functions introduced earlier in this series. We now do the message preparation and call to the link send function directly from the socket, instead of going via the port layer. As a consequence of this change, the functions tipc_send(), tipc_port_iovec_rcv(), tipc_port_iovec_reject() and tipc_reject_msg() become unreferenced and can be eliminated from port.c. For the same reason, the functions tipc_link_xmit_fast(), tipc_link_iovec_xmit_long() and tipc_link_iovec_fast() can be eliminated from link.c. Signed-off-by:
Jon Maloy <jon.maloy@ericsson.com> Reviewed-by:
Erik Hugne <erik.hugne@ericsson.com> Reviewed-by:
Ying Xue <ying.xue@windriver.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Jon Paul Maloy authored
We merge the code for sending port name and port identity addressed messages into the corresponding send functions in socket.c, and start using the new fragmenting and transmit functions we just have introduced. This saves a call level and quite a few code lines, as well as making this part of the code easier to follow. As a consequence, the functions tipc_send2name() and tipc_send2port() in port.c can be removed. For practical reasons, we break out the code for sending multicast messages from tipc_sendmsg() and move it into a separate function, tipc_sendmcast(), but we do not yet convert it into using the new build/send functions. Signed-off-by:
Jon Maloy <jon.maloy@ericsson.com> Reviewed-by:
Erik Hugne <erik.hugne@ericsson.com> Reviewed-by:
Ying Xue <ying.xue@windriver.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Jon Paul Maloy authored
When a message arrives in a node and finds no destination socket, we may need to drop it, reject it, or forward it after a secondary destination lookup. The latter two cases currently results in a code path that is perceived as complex, because it follows a deep call chain via obscure functions such as net_route_named_msg() and net_route_msg(). We now introduce a function, tipc_msg_eval(), that takes the decision about whether such a message should be rejected or forwarded, but leaves it to the caller to actually perform the indicated action. If the decision is 'reject', it is still the task of the recently introduced function tipc_msg_reverse() to take the final decision about whether the message is rejectable or not. In the latter case it drops the message. As a result of this change, we can finally eliminate the function net_route_named_msg(), and hence become independent of net_route_msg(). Signed-off-by:
Jon Maloy <jon.maloy@ericsson.com> Reviewed-by:
Erik Hugne <erik.hugne@ericsson.com> Reviewed-by:
Ying Xue <ying.xue@windriver.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Jon Paul Maloy authored
The way we build and send rejected message is currenty perceived as hard to follow, partly because we let the transmission go via deep call chains through functions such as tipc_reject_msg() and net_route_msg(). We want to remove those functions, and make the call sequences shallower and simpler. For this purpose, we separate building and sending of rejected messages. We build the reject message using the new function tipc_msg_reverse(), and let the transmission go via the newly introduced tipc_link_xmit2() function, as all transmission eventually will do. We also ensure that all calls to tipc_link_xmit2() are made outside port_lock/bh_lock_sock. Finally, we replace all calls to tipc_reject_msg() with the two new calls at all locations in the code that we want to keep. The remaining calls are made from code that we are planning to remove, along with tipc_reject_msg() itself. Signed-off-by:
Jon Maloy <jon.maloy@ericsson.com> Reviewed-by:
Erik Hugne <erik.hugne@ericsson.com> Reviewed-by:
Ying Xue <ying.xue@windriver.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Jon Paul Maloy authored
Fragmentation at message sending is currently performed in two places in link.c, depending on whether data to be transmitted is delivered in the form of an iovec or as a big sk_buff. Those functions are also tightly entangled with the send functions that are using them. We now introduce a re-entrant, standalone function, tipc_msg_build2(), that builds a packet chain directly from an iovec. Each fragment is sized according to the MTU value given by the caller, and is prepended with a correctly built fragment header, when needed. The function is independent from who is calling and where the chain will be delivered, as long as the caller is able to indicate a correct MTU. The function is tested, but not called by anybody yet. Since it is incompatible with the existing tipc_msg_build(), and we cannot yet remove that function, we have given it a temporary name. Signed-off-by:
Jon Maloy <jon.maloy@ericsson.com> Reviewed-by:
Erik Hugne <erik.hugne@ericsson.com> Reviewed-by:
Ying Xue <ying.xue@windriver.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Jon Paul Maloy authored
Message fragmentation is currently performed at link level, inside the protection of node_lock. This potentially binds up the sending link structure for a long time, instead of letting it do other tasks, such as handle reception of new packets. In this commit, we make the MTUs of each active link become easily accessible from the socket level, i.e., without taking any spinlock or dereferencing the target link pointer. This way, we make it possible to perform fragmentation in the sending socket, before sending the whole fragment chain to the link for transport. Signed-off-by:
Jon Maloy <jon.maloy@ericsson.com> Reviewed-by:
Erik Hugne <erik.hugne@ericsson.com> Reviewed-by:
Ying Xue <ying.xue@windriver.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Jon Paul Maloy authored
The current link implementation provides several different transmit functions, depending on the characteristics of the message to be sent: if it is an iovec or an sk_buff, if it needs fragmentation or not, if the caller holds the node_lock or not. The permutation of these options gives us an unwanted amount of unnecessarily complex code. As a first step towards simplifying the send path for all messages, we introduce two new send functions at link level, tipc_link_xmit2() and __tipc_link_xmit2(). The former looks up a link to the message destination, and if one is found, it grabs the node lock and calls the second function, which works exclusively inside the node lock protection. If no link is found, and the destination is on the same node, it delivers the message directly to the local destination socket. The new functions take a buffer chain where all packet headers are already prepared, and the correct MTU has been used. These two functions will later replace all other link-level transmit functions. The functions are not backwards compatible, so we have added them as new functions with temporary names. They are tested, but have no users yet. Those will be added later in this series. Signed-off-by:
Jon Maloy <jon.maloy@ericsson.com> Reviewed-by:
Erik Hugne <erik.hugne@ericsson.com> Reviewed-by:
Ying Xue <ying.xue@windriver.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Jon Paul Maloy authored
In some places, TIPC functions returns positive integers as return codes. This goes against standard Linux coding practice, and may even cause problems in some cases. We now change the return values of the functions filter_rcv() and filter_connect() to become signed integers, and return negative error codes when needed. The codes we use in these particular cases are still TIPC specific, since they are both part of the TIPC API and have no correspondence in errno.h Signed-off-by:
Jon Maloy <jon.maloy@ericsson.com> Reviewed-by:
Erik Hugne <erik.hugne@ericsson.com> Reviewed-by:
Ying Xue <ying.xue@windriver.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Jon Paul Maloy authored
In the function tipc_nodesub_notify() we call a function pointer aggregated into the object to be notified, whereafter we set the function pointer to NULL. However, in some cases the function pointed to will free the struct containing the function pointer, resulting in a write to already freed memory. This bug seems to always have been there, without causing any notable harm. In this commit we fix the problem by inverting the order of the zeroing and the function call. Signed-off-by:
Jon Maloy <jon.maloy@ericsson.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Tom Lendacky says: ==================== amd-xgbe: AMD 10Gb Ethernet driver updates The following series fixes some bugs and provides new/changed support in the driver. - Make all the defines in the xgbe.h file unique by prefixing them with XGBE_ if they are not currently using the prefix. - VLAN CTAGs are supplied in context descriptors. Tell the hardware to look in the Tx context descriptor, and not a register, for the VLAN CTAG to be inserted in the packet. - The hardware will indicate a VLAN packet has been received even if VLAN CTAG stripping is currently disabled. Only indicate that a VLAN CTAG has been stripped for the current packet if stripping is enabled. - Add support for VLAN filtering - Modify destination address filtering to use the hardware hash tables - Eliminate a checkpatch warning by replacing sscanf with kstrtouint This patch series is based on net-next. ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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Lendacky, Thomas authored
Checkpatch issued a warning preferring to use kstrto<type> when using a single variable sscanf. Change the sscanf invocation to a kstrtouint call. Signed-off-by:
Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Lendacky, Thomas authored
Currently the driver makes use of the additional mac address registers in the hardware to provide perfect filtering. The hardware can also have a set of hash table registers that can be used for imperfect filtering. By using imperfect filtering the additional mac address registers can be used for layer 2 filtering support. Use the hash table registers if the device has them. Signed-off-by:
Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Lendacky, Thomas authored
This patch adds support for (imperfect) filtering of VLAN tag ids using a 16-bit filter hash table. When VLANs are added, a 4-bit hash is calculated with the result indicating the bit in the hash table to set. This table is used by the hardware to drop packets with a VLAN id that does not hash to a set bit in the table. Signed-off-by:
Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Lendacky, Thomas authored
When receiving a VLAN packet check to be sure that VLAN RX CTAG stripping is enabled before indicating that the tag has been stripped in the packet information data structure. Signed-off-by:
Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Lendacky, Thomas authored
The MAC_VLAN_Incl register (0x0060) must be set to indicate that the VLAN tag to be inserted comes from a Tx context descriptor and not the MAC_VLAN_Incl register. Also, even though it is the default, explicitly set the type of tag to be inserted as a CTAG. Signed-off-by:
Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Lendacky, Thomas authored
In order to avoid conflicts with other include files, add a prefix to the defines in xgbe.h. Signed-off-by:
Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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- 26 Jun, 2014 17 commits
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Jesse Brandeburg authored
There were a couple of fields in the fdir descriptor setup that were not being reprogrammed, which left the opportunity for stale data to be pushed as part of the descriptor next time it was used. Change-ID: Ieee5c96a7d4713d469693f086c4854de949a7633 Signed-off-by:
Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Anjali Singhai Jain authored
"fd current cnt" can be used to print the total filters consumed by this interface, this includes guaranteed and best effort filters. Change-ID: I2c417810c4999ce1388d2ea26f8e69679ba33966 Signed-off-by:
Anjali Singhai Jain <anjali.singhai@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Anjali Singhai Jain authored
Hardware does not have a way of telling a PF how much of the global shared FD table space is still available or is consumed. Previously, every PF but PF0 would think there was still space available when there wasn't. The PFs would continue to try to add filters and fail. With this new logic if a filter programming error is detected we just check if we are close to the guaranteed space full and that can be used as a hint to say, there might not be space and we should turn off the features. This way we can turn off the feature in SW for all PFs in time. Change-ID: I725cb2fab16c033f883056362b4542c1400503c5 Signed-off-by:
Anjali Singhai Jain <anjali.singhai@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Anjali Singhai Jain authored
There wasn't a need to play the logic twice, it seems like a left over from when we had to add two PTYPEs for one filter. There should be no change in the number of filters that actually got added to the hardware. Change-ID: I5071d02eafd020b60e30eb96219f110f334eec85 Signed-off-by:
Anjali Singhai Jain <anjali.singhai@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Jacob Keller authored
Currently every time we run through the i40e_ptp_init routine, we create a new device node. This function is called by i40e_reset_and_rebuild which is used to handle reset of the device. Even though the 1588 registers only get cleared on a GLOBAL reset, this function is still called to handle a CORE reset. This causes a leak of PTP device nodes at every reset. To fix this, break PTP device clock node creation out of i40e_ptp_init, and only call this if we don't already have a device created. Further invocation of i40e_ptp_init will not generate new PTP devices. Instead, only the necessary work required to reconfigure 1588 will be done. This change also fixes an issue where a reset can cause the device to forget it's timestamp configuration, and revert to the default mode. Change-ID: I741d01c61d9fe1d24887859d1316e1a8a892909e Signed-off-by:
Jacob Keller <jacob.e.keller@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Jacob Keller authored
This patch prevents the SIOCGHWTSTAMP ioctl from possibly returning bad data, by not permanently storing the setting into the private structure until after we've finished validating that we can support it. Change-ID: Ib59f9b4f73f451d5a2e76fb8efa5d4271b218433 Signed-off-by:
Jacob Keller <jacob.e.keller@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Jacob Keller authored
This patch facilitates future work by breaking the PTP hardware control bits out of the i40e_set_ts_config function. By doing this, we can maintain state about the 1588 timestamping mode and properly re-enable to the last known mode during a re-initialize of 1588 bits. This patch also modifies i40e_ptp_init to call the i40e_ptp_set_timestamp_mode during the reconfiguration process. A future patch will ensure that the hwtstamp_config structure is not reset during this process, so that timestamp mode will be maintained across a reset. Change-ID: Ic20832c96c5c512ac203b6c7534e10d891c560f0 Signed-off-by:
Jacob Keller <jacob.e.keller@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Jacob Keller authored
Reduces possible confusion and ambiguity in purpose of the ancillary feature control entry point function. Change-ID: I21d773c1a86878f6d061505185b596c788d1b7cc Signed-off-by:
Jacob Keller <jacob.e.keller@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Mitch Williams authored
Sometimes the firmware will not indicate an error but fail to pass a message between the VF and the PF driver. If this happens, just resend the request. This fixes an initialization failure if many VFs are instantiated at the same time and the VF module is autoloaded. Change-ID: Idd1ad8da2fd5137859244685c355941427d317d7 Signed-off-by:
Mitch Williams <mitch.a.williams@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Mitch Williams authored
Correct a missing word in a log message. Change-ID: Id94da7d9f842382d073b3947e0b616503e2f8e91 Signed-off-by:
Mitch Williams <mitch.a.williams@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Mitch Williams authored
When verifying the API version (which is the first time the driver communicates with the firmware and thus the PF driver), there are many ways in which a failure can occur. There may be an error from the firmware, there may be unresponsive firmware, there may be an error from the PF driver, etc, etc. Make this function return more useful information, instead of just -EIO. Propagate FW errors back to the caller, and log a message if the PF sends an invalid reply. Change-ID: I3e9135a2b80f7acdb855f62f12b2b2668c9a8951 Signed-off-by:
Mitch Williams <mitch.a.williams@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Mitch Williams authored
If the VF driver fails to complete early init, then rmmod can cause a softlock when the driver tries to stop a watchdog timer that never even got initialized. Add a check to see if the timer is actually initialized before stopping it. Change-ID: Id9d550aa8838e07f4b02afe7bc017ef983779efc Signed-off-by:
Mitch Williams <mitch.a.williams@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Paul M Stillwell Jr authored
Fix HMC handling for big endian architectures. Change-ID: Id8c46fc341815d47bfe0af8b819f0ab9a1e9e515 Signed-off-by:
Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Kamil Krawczyk authored
We do not need to acquire NVM for Shadow RAM XSUM calculation, as we only read from SR through SRCTL register for which having the ownership is not required. Change-ID: Ie238a8f09917d1d25f24cc7cec271951ac7b98f2 Signed-off-by:
Kamil Krawczyk <kamil.krawczyk@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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git://git.samba.org/sfrench/cifs-2.6Linus Torvalds authored
Pull CIFS fixes from Steve French: "Small set of misc cifs/smb3 fixes" * 'for-next' of git://git.samba.org/sfrench/cifs-2.6: [CIFS] fix mount failure with broken pathnames when smb3 mount with mapchars option cifs: revalidate mapping prior to satisfying read_iter request with cache=loose fs/cifs: fix regression in cifs_create_mf_symlink()
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-stagingLinus Torvalds authored
Pull hwmon fixes from Guenter Roeck: "Various minor fixes" * tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: hwmon: (gpio-fan) Change name used in hwmon_device_register_with_groups hwmon: (emc1403) Fix missing 'select REGMAP_I2C' in Kconfig hwmon: (ntc_thermistor) Use the manufacturer name properly devicetree: bindings: Document murata vendor prefix hwmon: (w83l786ng) Report correct minimum fan speed
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