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net: ionic: Fetch qid allocation and SRQ capability from firmware

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Read the qid allocation and SRQ capability from the RDMA LIF identity
reported by firmware.

Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com>
This commit is contained in:
Abhijit Gangurde 2026-09-18 15:57:13 +05:30
parent 93f51579e7
commit c73a5f20bc
1 changed files with 29 additions and 2 deletions
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31
drivers/net/ethernet/pensando/ionic/ionic_if.h
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@ -7,6 +7,7 @@
#define IONIC_DEV_INFO_SIGNATURE 0x44455649 /* 'DEVI' */
#define IONIC_DEV_INFO_VERSION 1
#define IONIC_IFNAMSIZ 16
#define IONIC_CREATE_CQ_CMD_V2_MAGIC -1
/*
* enum ionic_cmd_opcode - Device commands
@ -513,6 +514,23 @@ enum ionic_lif_rdma_cap_stats {
IONIC_LIF_RDMA_STAT_QP = BIT(1),
};
/**
* enum ionic_lif_rdma_alloc_qid - RDMA QID allocation capability
*
* Bitmask of RDMA queue types for which firmware can automatically
* allocate queue IDs. When a bit is set, the driver can request the
* firmware to allocate QIDs for that queue type during creation.
*
* @IONIC_LIF_RDMA_ALLOC_QID_CQ: Firmware can allocate QIDs for
* Completion Queues
* @IONIC_LIF_RDMA_ALLOC_QID_SRQ: Firmware can allocate QIDs for
* Shared Receive Queues
*/
enum ionic_lif_rdma_alloc_qid {
IONIC_LIF_RDMA_ALLOC_QID_CQ = BIT(0),
IONIC_LIF_RDMA_ALLOC_QID_SRQ = BIT(1),
};
/**
* struct ionic_lif_identity - LIF identity information (type-specific)
*
@ -557,6 +575,10 @@ enum ionic_lif_rdma_cap_stats {
* (enum ionic_lif_rdma_cap_stats)
* @rdma.rsvd: Reserved byte
* @rdma.rcq_sign_bit: RCQ sign bit
* @rdma.srq_qtype: RDMA Shared Receive Qtype
* @rdma.rsvd2: Reserved byte(s)
* @rdma.alloc_qid_cap: RDMA queue type QID allocation capability
* (bitmask of enum ionic_lif_rdma_alloc_qid)
* @rdma.rsvd1: Reserved byte(s)
* @words: word access to struct contents
*/
@ -604,7 +626,10 @@ union ionic_lif_identity {
__le16 stats_type;
u8 rsvd;
u8 rcq_sign_bit;
u8 rsvd1[160];
struct ionic_lif_logical_qtype srq_qtype;
u8 rsvd2[5];
u8 alloc_qid_cap;
u8 rsvd1[142];
} __packed rdma;
} __packed;
__le32 words[478];
@ -2608,6 +2633,7 @@ struct ionic_rdma_reset_cmd {
* @depth_log2: log base two of queue depth
* @stride_log2: log base two of queue stride
* @dma_addr: address of the queue memory
* @udma_idx: udma index
* @rsvd2: reserved byte(s)
*
* The same command struct is used to create an RDMA event queue, completion
@ -2637,7 +2663,8 @@ struct ionic_rdma_queue_cmd {
u8 depth_log2;
u8 stride_log2;
__le64 dma_addr;
u8 rsvd2[40];
u8 udma_idx;
u8 rsvd2[39];
};
/******************************************************************