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path: root/drivers/net/ethernet/qlogic/qed
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2017-10-09qed: Add ll2 connection for processing unaligned MPA packetsMichal Kalderon
This patch adds only the establishment and termination of the ll2 connection that handles unaligned MPA packets. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-09qed: Add LL2 slowpath handlingMichal Kalderon
For iWARP unaligned MPA flow, a slowpath event of flushing an MPA connection that entered an unaligned state is required. The flush ramrod is received on the ll2 queue, and a pre-registered callback function is called to handle the flush event. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-09qed: Add the source of a packet sent on an iWARP ll2 connectionMichal Kalderon
When a packet is sent back to iWARP FW via the tx ll2 connection the FW needs to know the source of the packet. Whether it is OOO or unaligned MPA related. Since OOO is implemented entirely inside the ll2 code (and shared with iSCSI), packets are marked as IN_ORDER inside the ll2 code. For unaligned mpa the value will be determined in the iWARP code and sent on the pkt->vlan field. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-09qed: Fix initialization of ll2 offload featureMichal Kalderon
enable_ip_cksum, enable_l4_cksum, calc_ip_len were added in commit stated below but not passed through to FW. This was OK until now as it wasn't used, but is required for the iWARP unaligned flow Fixes:7c7973b2ae27 ("qed: LL2 to use packed information for tx") Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-09qed: Add ll2 option for dropping a tx packetMichal Kalderon
The option of sending a packet on the ll2 and dropping it exists in hardware and was not used until now, thus not exposed. The iWARP unaligned MPA flow requires this functionality for flushing the tx queue. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-09qed: Add ll2 ability of opening a secondary queueMichal Kalderon
When more than one ll2 queue is opened ( that is not an OOO queue ) ll2 code does not have enough information to determine whether the queue is the main one or not, so a new field is added to the acquire input data to expose the control of determining whether the queue is the main queue or a secondary queue. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-09qed: Add ll2 option to limit the number of bds per packetMichal Kalderon
iWARP uses 3 ll2 connections, the maximum number of bds is known during connection setup. This patch modifies the static array in the ll2_tx_packet descriptor to be a flexible array and significantlly reduces memory size. In addition, some redundant fields in the ll2_tx_packet were removed, which also contributed to decreasing the descriptor size. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-08qed: Delete redundant check on dcb_app priorityChristos Gkekas
dcb_app priority is unsigned thus checking whether it is less than zero is redundant. Signed-off-by: Christos Gkekas <chris.gekas@gmail.com> Acked-By: Tomer Tayar <Tomer.Tayar@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-26qed: iWARP - Add check for errors on a SYN packetMichal Kalderon
A SYN packet which arrives with errors from FW should be dropped. This required adding an additional field to the ll2 rx completion data. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-26qed: Fix maximum number of CQs for iWARPMichal Kalderon
The maximum number of CQs supported is bound to the number of connections supported, which differs between RoCE and iWARP. This fixes a crash that occurred in iWARP when running 1000 sessions using perftest. Fixes: 67b40dccc45 ("qed: Implement iWARP initialization, teardown and qp operations") Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-26qed: Add iWARP out of order supportMichal Kalderon
iWARP requires OOO support which is already provided by the ll2 interface (until now was used only for iSCSI offload). The changes mostly include opening a ll2 dedicated connection for OOO and notifiying the FW about the handle id. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-26qed: Add iWARP enablement supportMichal Kalderon
This patch is the last of the initial iWARP patch series. It adds the possiblity to actually detect iWARP from the device and enable it in the critical locations which basically make iWARP available. It wasn't submitted until now as iWARP hadn't been accepted into the rdma tree. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-15qed: remove unnecessary call to memsetHimanshu Jha
call to memset to assign 0 value immediately after allocating memory with kzalloc is unnecesaary as kzalloc allocates the memory filled with 0 value. Semantic patch used to resolve this issue: @@ expression e,e2; constant c; statement S; @@ e = kzalloc(e2, c); if(e == NULL) S - memset(e, 0, e2); Signed-off-by: Himanshu Jha <himanshujha199640@gmail.com> Signed-off-by: Himanshu Jha <himanshujha199640@gmail.com> Acked-by: Sudarsana Kalluru <sudarsana.kalluru@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-30qed: fix spelling mistake: "calescing" -> "coalescing"Colin Ian King
Trivial fix to spelling mistake in DP_NOTICE message Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-09Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
The UDP offload conflict is dealt with by simply taking what is in net-next where we have removed all of the UFO handling code entirely. The TCP conflict was a case of local variables in a function being removed from both net and net-next. In netvsc we had an assignment right next to where a missing set of u64 stats sync object inits were added. Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07qed: Fix a memory allocation failure test in 'qed_mcp_cmd_init()'Christophe Jaillet
We allocate 'p_info->mfw_mb_cur' and 'p_info->mfw_mb_shadow' but we check 'p_info->mfw_mb_addr' instead of 'p_info->mfw_mb_cur'. 'p_info->mfw_mb_addr' is never 0, because it is initiliazed a few lines above in 'qed_load_mcp_offsets()'. Update the test and check the result of the 2 'kzalloc()' instead. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Acked-by: Tomer Tayar <Tomer.Tayar@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-27qed: Read per queue coalesce from hardwareRahul Verma
Retrieve the actual coalesce value from hardware for every Rx/Tx queue, instead of Rx/Tx coalesce value cached during set coalesce. Signed-off-by: Rahul Verma <Rahul.Verma@cavium.com> Signed-off-by: Yuval Mintz <yuval.mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-27qed: Add support for vf coalesce configuration.Rahul Verma
This patch add the ethtool support to set RX/Tx coalesce value to the VF associated Rx/Tx queues. Signed-off-by: Rahul Verma <Rahul.Verma@cavium.com> Signed-off-by: Yuval Mintz <yuval.mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-27qed: Add support for Energy efficient ethernet.Sudarsana Reddy Kalluru
The patch adds required driver support for reading/configuring the Energy Efficient Ethernet (EEE) parameters. Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@cavium.com> Signed-off-by: Yuval Mintz <yuval.mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-27qed/qede: Add setter APIs support for RX flow classificationChopra, Manish
This patch adds support for adding and deleting rx flow classification rules. Using this user can classify RX flow constituting of TCP/UDP 4-tuples [src_ip/dst_ip and src_port/dst_port] to be steered on a given RX queue Signed-off-by: Manish Chopra <manish.chopra@cavium.com> Signed-off-by: Yuval Mintz <yuval.mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-11qed: Fix printk option passed when printing ipv6 addressesKalderon, Michal
The option "h" (host order ) exists for ipv4 only. Remove the h when printing ipv6 addresses. Lead to the following smatch warning: drivers/net/ethernet/qlogic/qed/qed_iwarp.c:585 qed_iwarp_print_tcp_ramrod() warn: '%pI6' can only be followed by c drivers/net/ethernet/qlogic/qed/qed_iwarp.c:1521 qed_iwarp_print_cm_info() warn: '%pI6' can only be followed by c Fixes commit 456a584947d5 ("qed: iWARP CM add passive side connect") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-03qed: initialize ll2_syn_handle at start of functionMichal Kalderon
Fix compilation warning qed_iwarp.c:1721:5: warning: ll2_syn_handle may be used uninitialized in this function Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-03qed: Add iWARP support for physical queue allocationKalderon, Michal
iWARP has different physical queue requirements than RoCE Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-03qed: Add iWARP protocol support in context allocationKalderon, Michal
When computing how much memory is required for the different hw clients iWARP protocol should be taken into account Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-03qed: iWARP CM add error handlingKalderon, Michal
This patch introduces error handling for errors that occurred during connection establishment. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-03qed: iWARP implement disconnect flowsKalderon, Michal
This patch takes care of active/passive disconnect flows. Disconnect flows can be initiated remotely, in which case a async event will arrive from peer and indicated to qedr driver. These are referred to as exceptions. When a QP is destroyed, it needs to check that it's associated ep has been closed. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-03qed: iWARP CM add active side connectKalderon, Michal
This patch implements the active side connect. Offload a connection, process MPA reply and send RTR. In some of the common passive/active functions, the active side will work in blocking mode. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-03qed: iWARP CM add passive side connectKalderon, Michal
This patch implements the passive side connect. It addresses pre-allocating resources, creating a connection element upon valid SYN packet received. Calling upper layer and implementation of the accept/reject calls. Error handling is not part of this patch. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-03qed: iWARP CM add listener functions and initial SYN processingKalderon, Michal
This patch adds the ability to add and remove listeners and identify whether the SYN packet received is intended for iWARP or not. If a listener is not found the SYN packet is posted back to the chip. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-03qed: iWARP CM - setup a ll2 connection for handling SYN packetsKalderon, Michal
iWARP handles incoming SYN packets using the ll2 interface. This patch implements ll2 setup and teardown. Additional ll2 connections will be used in the future which are not part of this patch series. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-03qed: Add iWARP support in ll2 connectionsKalderon, Michal
Add a new connection type for iWARP ll2 connections for setting correct ll2 filters and connection type to FW. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-03qed: Rename some ll2 related definesKalderon, Michal
Make some names more generic as they will be used by iWARP too. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-03qed: Implement iWARP initialization, teardown and qp operationsKalderon, Michal
This patch adds iWARP support for flows that have common code between RoCE and iWARP, such as initialization, teardown and qp setup verbs: create, destroy, modify, query. It introduces the iWARP specific files qed_iwarp.[ch] and iwarp_common.h Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-03qed: Introduce iWARP personalityKalderon, Michal
iWARP personality introduced the need for differentiating in several places in the code whether we are RoCE, iWARP or either. This leads to introducing new macros for querying the personality. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-21qed*: Rename qed_roce_if.h to qed_rdma_if.hKalderon, Michal
Rename the qed_roce_if file to qed_rdma_if as it represents a common interface for RoCE and iWARP. this commit affects RDMA/qedr as well. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-21qed: Split rdma content between qed_rdma and qed_roceKalderon, Michal
This patch places common iWARP / RoCE code in qed_rdma and roce specific code in qed_roce There is one new function ( qed_roce_setup ) added, the rest of the patch removes content from the files and removes some static definitions. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-21qed: Duplicate qed_roce.[ch] to qed_rdma.[ch]Kalderon, Michal
This patch adds files that will contain common code for RoCE/iWARP. The files are currently identical to qed_roce.c / qed_roce.h and intentionally not added to the makefile. The next patch in the series will modify the files so that roce specific code is left in qed_roce and common roce/iwarp code will be placed in qed_rdma This patch is the result of a simple cp qed_rdma.c qed_roce.c cp qed_rdma.h qed_roce.h Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-21qed: Cleanup qed_roce before duplicating itKalderon, Michal
The next patch in the series will duplicate qed_roce as part of code preprations for iWARP support. Do some cleanup before duplicating Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-20qed: SPQ async callback registrationMichal Kalderon
Whenever firmware indicates that there's an async indication it needs to handle, there's a switch-case where the right functionality is called based on function's personality and information. Before iWARP is added [as yet another client], switch over the SPQ into a callback-registered mechanism, allowing registration of the relevant event-processing logic based on the function's personality. This allows us to tidy the code by removing protocol-specifics from a common file. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-20qed: Wait for resources before FUNC_CLOSEMichal Kalderon
Driver needs to wait for all resources to return from FW before it can send the FUNC_CLOSE ramrod. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-20qed: Disable RoCE dpm when DCBx change occursMintz, Yuval
If DCBx update occurs while QPs are open, stop sending edpms until all QPs are closed. Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-20qed: RoCE EDPM to honor PFCMintz, Yuval
Configure device according to DCBx results so that EDPMs made by RoCE would honor flow-control. Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-20qed: Chain support for external PBLMintz, Yuval
iWARP would require the chains to allocate/free their PBL memory independently, so add the infrastructure to provide it externally. Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-14qed: Fix an off by one bugDan Carpenter
The p_l2_info->pp_qid_usage[] array has "p_l2_info->queues" elements so the > here should be a >= or we write beyond the end of the array. Fixes: bbe3f233ec5e ("qed: Assign a unique per-queue index to queue-cid") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-09qed: add qed_int_sb_init() stub functionArnd Bergmann
When CONFIG_QED_SRIOV is disabled, we get a build error: drivers/net/ethernet/qlogic/qed/qed_int.c: In function 'qed_int_sb_init': drivers/net/ethernet/qlogic/qed/qed_int.c:1499:4: error: implicit declaration of function 'qed_vf_set_sb_info'; did you mean 'qed_mcp_get_resc_info'? [-Werror=implicit-function-declaration] All the other declarations have a 'static inline' stub as an alternative here, so this adds one more for qed_int_sb_init. Fixes: 50a207147fce ("qed: Hold a single array for SBs") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-09qed: collect GSI port statisticsMintz, Yuval
The LL2 statistics already have place holders for these, but haven't populated them so far. Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-09qed: Call rx_release_cb() when flushing LL2Mintz, Yuval
Driver to inform the connection owner that the its buffers are being released as part of a flush. Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-09qed: No need for LL2 frags indicationMintz, Yuval
This is a legacy leftover; There's no current flow where 'frags_mapped' would be set. Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-09qed*: LL2 callback operationsMichal Kalderon
LL2 today is interrupt driven - when tx/rx completion arrives [or any other indication], qed needs to operate on the connection and pass the information to the protocol-driver [or internal qed consumer]. Since we have several flavors of ll2 employeed by the driver, each handler needs to do an if-else to determine the right functionality to use based on the connection type. In order to make things more scalable [given that we're going to add additional types of ll2 flavors] move the infrastrucutre into using a callback-based approach - the callbacks would be provided as part of the connection's initialization parameters. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-09qed: LL2 code relocationsMintz, Yuval
Instead of having the OOO logic packetd, divide it with rest of code according to establish/release flows. Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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