Commit Graph

226 Commits

Author SHA1 Message Date
Anirudh Venkataramanan 94c4441b5a ice: Fix typos in code comments
This patch fixes typos in code comments.

Reviewed-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-04-18 08:38:47 -07:00
Florian Westphal 6b16f9ee89 net: move skb->xmit_more hint to softnet data
There are two reasons for this.

First, the xmit_more flag conceptually doesn't fit into the skb, as
xmit_more is not a property related to the skb.
Its only a hint to the driver that the stack is about to transmit another
packet immediately.

Second, it was only done this way to not have to pass another argument
to ndo_start_xmit().

We can place xmit_more in the softnet data, next to the device recursion.
The recursion counter is already written to on each transmit. The "more"
indicator is placed right next to it.

Drivers can use the netdev_xmit_more() helper instead of skb->xmit_more
to check the "more packets coming" hint.

skb->xmit_more is retained (but always 0) to not cause build breakage.

This change takes care of the simple s/skb->xmit_more/netdev_xmit_more()/
conversions.  Remaining drivers are converted in the next patches.

Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-01 18:35:02 -07:00
Anirudh Venkataramanan 64f4b9437f ice: Remove "2 BITS" comment
Some enums in ice_tx_desc_cmd_bits have a trailing /* 2 BITS */ comment,
but the value has just one bit set (ex. ICE_TX_DESC_CMD_L4T_EOFT_SCTP
has the value 0x200 (i.e. only bit 9 is set). This is confusing and
misleading. So remove the comment.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-26 15:27:13 -07:00
Brett Creeley 92414f3292 ice: Update comment regarding the ITR_GRAN_S
Since the driver now hard codes the ITR granularity to 2 us in the
GLINT_CTL register the comment next to ITR_GRAN_S needs to be updated.

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-26 15:22:44 -07:00
Anirudh Venkataramanan 6c2f997af5 ice: Update function header for __ice_vsi_get_qs
Remove some redundant text in the function header for __ice_vsi_get_qs

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-26 15:17:44 -07:00
Anirudh Venkataramanan ac4667551e ice: Remove unnecessary braces
Single statement if conditions don't need braces. Remove it.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-26 15:13:39 -07:00
Anirudh Venkataramanan 10c7e4c5fc ice: Remove unused function prototype
Commit 37bb839012 ("ice: Move common functions out of ice_main.c part
7/7") seems to have inadvertently introduced a function prototype for
ice_vsi_cfg_tc without a corresponding function implementation. Remove it.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-26 15:07:06 -07:00
Brett Creeley 203a068ac9 ice: Add missing case in print_link_msg for printing flow control
Currently we aren't checking for the ICE_FC_NONE case for the current
flow control mode. This is causing "Unknown" to be printed for the
current flow control method if flow control is disabled. Fix this by
adding the case for ICE_FC_NONE to print "None".

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-26 15:05:27 -07:00
Brett Creeley 8244dd2d23 ice: Audit hotpath structures with pahole
Currently the ice_q_vector structure and ice_ring_container structure
are taking up more space than necessary due to cache alignment holes
and unnecessary variables respectively. This is not helping the
driver's performance. The following fixes were done to improve cache
alignment, reduce wasted space, and increase performance.

1. Remove the ice_latency_range enum as it is unused.
2. Remove the latency_range variable in the ice_ring_container structure.
3. Change the size of the itr_idx in the ice_ring_container structure
   from an int to an u16. This reduced the size of ice_ring_container
   structure to 32 Bytes so it has no holes or padding.
4. Re-arrange the ice_q_vector structure using pahole to align
   members as best as possible in regards to 64 Byte cache line size.

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-26 15:03:25 -07:00
Preethi Banala 89f3e4a5b7 ice: Do not bail out when filter already exists
If filter already exists, do not go through error path flow but instead
continue to process rest of the function. Hence have an appropriate check
after adding MAC filters.

Signed-off-by: Preethi Banala <preethi.banala@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-26 14:51:59 -07:00
Akeem G Abodunrin 4e1af7bf22 ice: Fix issue with VF attempt to delete default MAC address
This patch fixes issue that occurs when VF is attempting to remove
default LAN/MAC address, which is programmed by the administrator.
We shouldn't return error for the call by the VF, but continue with
the remaining steps to handle MAC opcode. Also update the dev_err
message to explicitly say that VF can't change MAC programmed by PF.

Also change "mac" to "MAC" for kernel print statements in the same file.

Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-26 14:49:59 -07:00
Mitch Williams a7c9b47bc9 ice: enable VF admin queue interrupts
The VPINT_MBX_CTL register array must be programmed to enable VF admin
queue interrupts. Without this, VFs never get interrupts on vector 0,
and some VF drivers will fail to init.

Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-26 14:07:46 -07:00
Anirudh Venkataramanan 64a59d05a4 ice: Fix for adaptive interrupt moderation
commit 63f545ed12 ("ice: Add support for adaptive interrupt moderation")
was meant to add support for adaptive interrupt moderation but there was
an error on my part while formatting the patch, and thus only part of the
patch ended up being submitted.

This patch rectifies the error by adding the rest of the code.

Fixes: 63f545ed12 ("ice: Add support for adaptive interrupt moderation")
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-26 14:03:01 -07:00
Brett Creeley 5995b6d0c6 ice: Implement pci_error_handler ops
This patch implements the following pci_error_handler ops:
	.error_detected = ice_pci_err_detected
	.slot_reset = ice_pci_err_slot_reset
	.reset_notify = ice_pci_err_reset_notify
	.reset_prepare = ice_pci_err_reset_prepare
	.reset_done = ice_pci_err_reset_done
	.resume = ice_pci_err_resume

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-26 13:57:12 -07:00
Brett Creeley 5abac9d7e1 ice: Put __ICE_PREPARED_FOR_RESET check in ice_prepare_for_reset
Currently we check if the __ICE_PREPARED_FOR_RESET bit is set prior to
calling ice_prepare_for_reset in ice_reset_subtask(), but we aren't
checking that bit in ice_do_reset() before calling
ice_prepare_for_reset(). This is not consistent and can cause issues if
ice_prepare_for_reset() is called prior to ice_do_reset(). Fix this by
checking if the __ICE_PREPARED_FOR_RESET bit is set internal to
ice_prepare_for_reset().

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-26 13:40:20 -07:00
Mitch Williams cf6c6e01bf ice: use virt channel status codes
When communicating with the AVF driver, we need to use the status codes
from virtchnl.h, not our own ice-specific codes. Without this, when an
error occurs, the VF will report nonsensical results.

NOTE: this depends on changes made to include/linux/avf/virtchnl.h by
commit bb58fd7eef ("i40e: Update status codes")

Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-26 13:35:04 -07:00
Jeremiah Kyle 91dab5d53f ice: Remove unnecessary newlines from log messages
Two log messages contained newlines in the middle of the message. This
resulted in unexpected driver log output.

This patch removes the newlines to restore consistency with the rest of
the driver log messages.

Signed-off-by: Jeremiah Kyle <jeremiah.kyle@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-26 13:15:28 -07:00
Chinh T Cao 86e81794ac ice: Create a generic name for the ice_rx_flg64_bits structure
This structure is used to define the packet flags. These flags are
applicable for both TX and RX packet. Thus, this patch changes its
name from ice_rx_flag64_bits to ice_flg64_bits, and its member definition.

Signed-off-by: Chinh T Cao <chinh.t.cao@intel.com>
Reviewed-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-25 10:40:04 -07:00
Bruce Allan 2bdc97be97 ice: add and use new ice_for_each_traffic_class() macro
There are numerous for() loops iterating over each of the max traffic
classes.  Use a simple iterator macro instead to make the code cleaner.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-25 10:33:54 -07:00
Preethi Banala 105e5bc23a ice: change VF VSI tc info along with num_queues
Update VF VSI tc info along with vsi->num_txq/num_rxq when VF requests to
configure queues.

Signed-off-by: Preethi Banala <preethi.banala@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-25 10:14:02 -07:00
Dave Ertman 2ebd4428d9 ice: Prevent unintended multiple chain resets
In the current implementation of ice_reset_subtask, if multiple reset
types are set in the pf->state, the most intrusive one is meant to be
performed only, but the bits requesting the other types are not being
cleared. This would lead to another reset being performed the next time
the service task is scheduled.

Change the flow of ice_reset_subtask so that all reset request bits in
pf->state are cleared, and we still perform the most intrusive of the
resets requested.

Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-25 10:12:21 -07:00
Maciej Fijalkowski a65f71fed5 ice: map Rx buffer pages with DMA attributes
Provide DMA_ATTR_WEAK_ORDERING and DMA_ATTR_SKIP_CPU_SYNC attributes to
the DMA API during the mapping operations on Rx side. With this change
the non-x86 platforms will be able to sync only with what is being used
(2k buffer) instead of entire page. This should yield a slight
performance improvement.

Furthermore, DMA unmap may destroy the changes that were made to the
buffer by CPU when platform is not a x86 one. DMA_ATTR_SKIP_CPU_SYNC
attribute usage fixes this issue.

Also add a sync_single_for_device call during the Rx buffer assignment,
to make sure that the cache lines are cleared before device attempting
to write to the buffer.

Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-25 10:10:39 -07:00
Maciej Fijalkowski 712edbbb67 ice: Limit the ice_add_rx_frag to frag addition
Refactor ice_fetch_rx_buf and ice_add_rx_frag in a way that we have
standalone functions that do either the skb construction or frag
addition to previously constructed skb.

The skb handling between rx_bufs is spread among various functions. The
ice_get_rx_buf will retrieve the skb pointer from rx_buf and if it is a
NULL pointer then we do the ice_construct_skb, otherwise we add a frag
to the current skb via ice_add_rx_frag. Then, on the ice_put_rx_buf the
skb pointer that belongs to rx_buf will be cleared. Moving further, if
the current frame is not EOP frame we assign the current skb to the
rx_buf that is pointed by updated next_to_clean indicator.

What is more during the buffer reuse let's assign each member of
ice_rx_buf individually so we avoid the unnecessary copy of skb.

Last but not least, this logic split will allow us for better code reuse
when adding a support for build_skb.

Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-25 09:55:35 -07:00
Maciej Fijalkowski 1d032bc77b ice: Gather the rx buf clean-up logic for better reuse
Pull out the code responsible for page counting and buffer recycling so
that it will be possible to clean up the Rx buffers in cases where we
won't allocate skb (ex. XDP)

Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-25 09:45:07 -07:00
Maciej Fijalkowski 03c66a1376 ice: Introduce bulk update for page count
{get,put}_page are atomic operations which we use for page count
handling. The current logic for refcount handling is that we increment
it when passing a skb with the data from the first half of page up to
netstack and recycle the second half of page. This operation protects us
from losing a page since the network stack can decrement the refcount of
page from skb.

The performance can be gently improved by doing the bulk updates of
refcount instead of doing it one by one. During the buffer initialization,
maximize the page's refcount and don't allow the refcount to become
less than two.

Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-25 09:33:13 -07:00
Maciej Fijalkowski 1857ca42a7 ice: Get rid of ice_pull_tail
Instead of adding a frag and later when dealing with EOP frame accessing
that frag in order to copy the headers onto linear part of skb, we can do
this in ice_add_rx_frag in case where the data_len is still 0 and frame
won't fit onto the linear part as a whole.

Function comment of ice_pull_tail was a bit misleading because of
mentioned optimizations that can be performed (drop a frag/maintaining
accurate truesize of skb) - it seems that this part of logic was dropped
and the comment was not updated to reflect this change.

Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-25 09:22:21 -07:00
Maciej Fijalkowski bbb97808a0 ice: Pull out page reuse checks onto separate function
Introduce ice_can_reuse_rx_page which will verify whether the page can
be reused and return the boolean result to caller.

Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-25 08:00:14 -07:00
Maciej Fijalkowski 6c869cb7a8 ice: Retrieve rx_buf in separate function
Introduce ice_get_rx_buf, which will fetch the Rx buffer and do the DMA
synchronization. Length of the packet that hardware Rx descriptor
contains is now read in ice_clean_rx_irq, so we can feed ice_get_rx_buf
with it and resign from rx_desc passed as argument in ice_fetch_rx_buf
and ice_add_rx_frag.

Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-25 07:58:17 -07:00
Brett Creeley 250c3b3e0a ice: Enable link events over the ARQ
The hardware now supports link events over the admin receive queue (ARQ),
so enable HW link events over the ARQ and remove code for link event
polling.

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Reviewed-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-25 07:54:44 -07:00
Alan Brady 8d051b8b5d ice: use irq_num var in ice_vsi_req_irq_msix
Someone went through the effort of making this a variable so let's use
it instead of recalculating it again.

Signed-off-by: Alan Brady <alan.brady@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-25 07:52:51 -07:00
Michal Swiatkowski 840bcd88f8 ice: Restore VLAN switch rule if port VLAN existed before
The VLAN rule is lost when VM starts or the AVF driver (iavf.ko) is
reloaded. So it is necessary to add this rule again.

Signed-off-by: Michal Swiatkowski <michal.swiatkowski@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-25 07:41:49 -07:00
Victor Raj b0153fdd7e ice: update VSI config dynamically
When VSI increases the number of queues dynamically, the scheduler
just needs to add the new required nodes rather than re-adjusting with
previously allocated number of nodes. Readjusting didn't provide enough
parents to add the upper layer nodes also can't place lan and rdma
subtrees separately.

In decrease case, keep the VSI configuration with max number of queues
always. This will leave some extra nodes in the tree but no harm done.

Signed-off-by: Victor Raj <victor.raj@intel.com>
Reviewed-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-25 07:23:20 -07:00
Akeem G Abodunrin f1ef73f50b ice: Get VF VSI instances directly via PF
This patch changes how we get VF VSIs instances. Instead of relying on
mailbox virtual channel message to retrieve VSI, it is more reliable
getting it directly via VF object in PF data structure.

Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-22 08:26:29 -07:00
Akeem G Abodunrin d84b899a94 ice: Don't let VF know that it is untrusted
Don't let the VF know it's not trusted when it tries to add more than
permitted additional MAC addresses.

Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-22 08:23:27 -07:00
Yashaswini Raghuram Prathivadi Bhayankaram 26069b448e ice: Set LAN_EN for all directional rules
The LAN_EN bit for a switch rule determines if the packet can go out
on the wire or not. Set the LAN_EN flag in the switch action for all
directional rules.

Signed-off-by: Yashaswini Raghuram Prathivadi Bhayankaram <yashaswini.raghuram.prathivadi.bhayankaram@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-22 08:20:05 -07:00
Christopher N Bednarz b58dafbc6f ice: Do not set LB_EN for prune switch rules
LB_EN for prune switch rules was causing all TX traffic
to loopback to the internal switch and dropped.  When
running bi-directional stress workloads with RDMA
the RDPU would hang blocking tx and rx traffic.

Signed-off-by: Christopher N Bednarz <christopher.n.bednarz@intel.com>
Reviewed-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-22 08:19:17 -07:00
Yashaswini Raghuram Prathivadi Bhayankaram 277b3a4547 ice: Enable LAN_EN for the right recipes
In VEB mode, enable LAN_EN bit in the action fields for filter rules
corresponding to the right recipes.

Signed-off-by: Yashaswini Raghuram Prathivadi Bhayankaram <yashaswini.raghuram.prathivadi.bhayankaram@intel.com>
Reviewed-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-22 08:19:17 -07:00
Akeem G Abodunrin 5eda8afd6b ice: Add support for PF/VF promiscuous mode
Implement support for VF promiscuous mode, MAC/VLAN/MAC_VLAN and PF
multicast MAC/VLAN/MAC_VLAN promiscuous mode.

Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-22 08:19:17 -07:00
Victor Raj e1ca65a3cc ice: code cleanup in ice_sched.c
This patch does some clean up in the Tx scheduler code:

1. Adjust the stack variable usage
2. Modify the debug prints to display the FW error
3. Add additional debug prints while adding/removing VSIs

Signed-off-by: Victor Raj <victor.raj@intel.com>
Reviewed-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-22 08:19:17 -07:00
Anirudh Venkataramanan eb86b09491 ice: Remove unused vsi_id field
Remove unused vsi_id field from struct ice_sched_vsi_info.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-22 08:19:17 -07:00
Bruce Allan c8b7abdd7d ice: fix some function prototype and signature style issues
Put the return type on a separate line for function prototypes and
signatures that would exceed the 80-character limit if both were on
the same line.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-22 08:19:17 -07:00
Kiran Patil 60dcc39ea3 ice: fix the divide by zero issue
Static analysis flagged a potential divide by zero error because
vsi->num_rxq can become zero in certain condition and it is used as
divisor.

Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-22 08:19:17 -07:00
Akeem G Abodunrin 5743020d37 ice: Fix issue reconfiguring VF queues
When VF requested for queues changes, we need to update LAN Tx queue with
correct number of VF queue pairs and re-allocate VF resources based on
this new requested number of queues, which is constraint within maximum
queue supported per VF.

Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-22 08:19:17 -07:00
Anirudh Venkataramanan 23d21c3dbb ice: Remove unused function prototype
Commit 7c710869d6 ("ice: Add handlers for VF netdevice operations")
seems to have inadvertently introduced a function prototype for
ice_set_vf_bw that isn't implemented. Remove it.

Fixes: 7c710869d6 ("ice: Add handlers for VF netdevice operations")

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-22 08:19:17 -07:00
Bruce Allan 1b5c19c779 ice: fix static analysis warnings
cppcheck warns "Identical condition '<var>', second condition is always
false". Fix them.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-22 08:19:16 -07:00
Akeem G Abodunrin 7eeac88976 ice: Fix issue reclaiming resources back to the pool after reset
This patch fixes issue reclaiming VF resources back to the pool after
reset - Since we only allocate HW vector for all VFs and track together
with resources allocation for PF with ice_search_res, we need to free VFs
resources separately, using first VF vector index to traverse the list.
Otherwise tracker starts from the last assigned vectors list and causes
maximum supported number of HW vectors, 1024 to be exhausted, depending on
the number of VFs enabled, which causes a lot of unwanted issues, and
failed to reassign vectors for VFs.

Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-22 08:19:16 -07:00
Akeem G Abodunrin cb93a9529d ice: Enable MAC anti-spoof by default
This patch enables MAC anti-spoof by default, with creation of VF VSIs or
when the VF VSIs are being re-initialized.

Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-22 08:19:16 -07:00
Brett Creeley ad71b256ba ice: Determine descriptor count and ring size based on PAGE_SIZE
Currently we set the default number of Tx and Rx descriptors to 128 by
default. For Rx this amounts to a full page (assuming 4K pages) because
each Rx descriptor is 32 Bytes, but for Tx it only amounts to a half
page because each Tx descriptor is 16 Bytes (assuming 4K pages).
Instead of assuming 4K pages, determine the ring size and the number of
descriptors for Tx and Rx based on a calculation using the PAGE_SIZE,
ICE_MAX_NUM_DESC, and ICE_REQ_DESC_MULTIPLE. This change is being made
to improve the performance of the driver when using the default
settings.

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-19 17:24:03 -07:00
Akeem G Abodunrin 544f63d307 ice: Reset all VFs with VFLR during SR-IOV init flow
During SR-IOV initialization, we allocate and setup VFs with reset, and
since we were going to inform Firmware about our intention to do VFLR by
disabling LAN TX Queue, then we really have to complete VF reset flow with
VFLR using appropriate registers - Otherwise, reset status bit for VF in
the Guest OS might returns DEADBEEF.
This resolves issue to properly initialize VFs in the Guest OS via PCI
passthrough.

Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-19 17:02:26 -07:00
Brett Creeley 7a1f711175 ice: Get resources per function
ice_get_guar_num_vsi currently calculates the number of VSIs per PF.
Rework this into a general function ice_get_num_per_func, that can
calculate per PF allocations for not just VSIs but across multiple
resource types.

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Reviewed-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-03-19 17:00:54 -07:00