linux-kernel - [PATCH net-next v3 0/7] enic: Use all the resources configured on VIC

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Message-Id: <20241108-remove_vic_resource_limits-v3-0-3ba8123bcffc@cisco.com>
Date: Fri, 08 Nov 2024 21:47:46 +0000
From: Nelson Escobar <neescoba@...co.com>
To: John Daley <johndale@...co.com>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
 Christian Benvenuti <benve@...co.com>, Satish Kharat <satishkh@...co.com>, 
 Andrew Lunn <andrew+netdev@...n.ch>, 
 "David S. Miller" <davem@...emloft.net>
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Nelson Escobar <neescoba@...co.com>, Simon Horman <horms@...nel.org>
Subject: [PATCH net-next v3 0/7] enic: Use all the resources configured on
 VIC

Allow users to configure and use more than 8 rx queues and 8 tx queues
on the Cisco VIC.

This series changes the maximum number of tx and rx queues supported
from 8 to the hardware limit of 256, and allocates memory based on the
number of resources configured on the VIC.

Signed-off-by: Nelson Escobar <neescoba@...co.com>
---
Changes in v3:
- Per Jakub's suggestions, split commit 5 into smaller commits and use
  net_get_num_default_rss_queues() to set the number of RQs used.
- Fixed an issue with commit 2 caught during testing with a missing
  changed needed in enic_init_vnic_resources().
- Link to v2: https://lore.kernel.org/r/20241024-remove_vic_resource_limits-v2-0-039b8cae5fdd@cisco.com

Changes in v2:
- Followed Kalesh's suggestions: removed redundant NULL assigments,
  returning -ENOMEM directly
- Reviewed-by tag for Simon Horman <horms@...nel.org>
- Marked Satish Kharat and John Daley as co-developers to better reflect
  their role in this patch set
- Link to v1: https://lore.kernel.org/r/20241022041707.27402-2-neescoba@cisco.com

---
Nelson Escobar (7):
      enic: Create enic_wq/rq structures to bundle per wq/rq data
      enic: Make MSI-X I/O interrupts come after the other required ones
      enic: Save resource counts we read from HW
      enic: Allocate arrays in enic struct based on VIC config
      enic: Adjust used MSI-X wq/rq/cq/interrupt resources in a more robust way
      enic: Move enic resource adjustments to separate function
      enic: Move kdump check into enic_adjust_resources()

 drivers/net/ethernet/cisco/enic/enic.h         |  62 ++--
 drivers/net/ethernet/cisco/enic/enic_ethtool.c |   8 +-
 drivers/net/ethernet/cisco/enic/enic_main.c    | 386 +++++++++++++++----------
 drivers/net/ethernet/cisco/enic/enic_res.c     |  42 +--
 4 files changed, 299 insertions(+), 199 deletions(-)
---
base-commit: 6f07cd8301706b661776074ddc97c991d107cc91
change-id: 20241023-remove_vic_resource_limits-eaa64f9e65fb

Best regards,
-- 
Nelson Escobar <neescoba@...co.com>