diff options
| author | Long Li <longli@microsoft.com> | 2026-06-04 17:57:15 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-06-09 17:22:27 -0700 |
| commit | 062b2b051f14a974b1fbd7b506fb833f5a171fa8 (patch) | |
| tree | 0d343538a8be2a196665ab0ef4ea3f55ef0775b1 /include/net | |
| parent | 487af6f5391e7461437e0972d15d9bcbcab2ac21 (diff) | |
| download | linux-next-062b2b051f14a974b1fbd7b506fb833f5a171fa8.tar.gz linux-next-062b2b051f14a974b1fbd7b506fb833f5a171fa8.zip | |
RDMA/mana_ib: Allocate interrupt contexts on EQs
Use the GIC functions to allocate interrupt contexts for RDMA EQs. These
interrupt contexts may be shared with Ethernet EQs when MSI-X vectors
are limited.
The driver now supports allocating dedicated MSI-X for each EQ. Indicate
this capability through driver capability bits. The RDMA EQs pass
use_msi_bitmap=false to share MSI-X vectors with Ethernet, while the
capability flag advertises that the driver supports per-vPort EQ
separation when hardware has sufficient vectors.
Populate eq.irq on all RDMA EQs for consistency with the Ethernet path.
Also relocate the GDMA_DRV_CAP_FLAG_1_HW_VPORT_LINK_AWARE define to its
numeric BIT(6) position among the other capability flags.
Signed-off-by: Long Li <longli@microsoft.com>
Acked-by: Leon Romanovsky <leon@kernel.org>
Link: https://patch.msgid.link/20260605005717.2059954-7-longli@microsoft.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/mana/gdma.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/include/net/mana/gdma.h b/include/net/mana/gdma.h index 6a65fedae38f..78afd696b08b 100644 --- a/include/net/mana/gdma.h +++ b/include/net/mana/gdma.h @@ -616,6 +616,7 @@ enum { #define GDMA_DRV_CAP_FLAG_1_HWC_TIMEOUT_RECONFIG BIT(3) #define GDMA_DRV_CAP_FLAG_1_GDMA_PAGES_4MB_1GB_2GB BIT(4) #define GDMA_DRV_CAP_FLAG_1_VARIABLE_INDIRECTION_TABLE_SUPPORT BIT(5) +#define GDMA_DRV_CAP_FLAG_1_HW_VPORT_LINK_AWARE BIT(6) /* Driver can handle holes (zeros) in the device list */ #define GDMA_DRV_CAP_FLAG_1_DEV_LIST_HOLES_SUP BIT(11) @@ -632,7 +633,8 @@ enum { /* Driver detects stalled send queues and recovers them */ #define GDMA_DRV_CAP_FLAG_1_HANDLE_STALL_SQ_RECOVERY BIT(18) -#define GDMA_DRV_CAP_FLAG_1_HW_VPORT_LINK_AWARE BIT(6) +/* Driver supports separate EQ/MSIs for each vPort */ +#define GDMA_DRV_CAP_FLAG_1_EQ_MSI_UNSHARE_MULTI_VPORT BIT(19) /* Driver supports linearizing the skb when num_sge exceeds hardware limit */ #define GDMA_DRV_CAP_FLAG_1_SKB_LINEARIZE BIT(20) @@ -660,7 +662,8 @@ enum { GDMA_DRV_CAP_FLAG_1_SKB_LINEARIZE | \ GDMA_DRV_CAP_FLAG_1_PROBE_RECOVERY | \ GDMA_DRV_CAP_FLAG_1_HANDLE_STALL_SQ_RECOVERY | \ - GDMA_DRV_CAP_FLAG_1_HWC_TIMEOUT_RECOVERY) + GDMA_DRV_CAP_FLAG_1_HWC_TIMEOUT_RECOVERY | \ + GDMA_DRV_CAP_FLAG_1_EQ_MSI_UNSHARE_MULTI_VPORT) #define GDMA_DRV_CAP_FLAGS2 0 |