[PATCH v2 net-next,8/8] octeontx2-af: add mbox to return CPT_AF_FLT_INT info

Srujana Challa
2023-01-11T12:25:18Z

Adds a new mailbox to return CPT faulted engines bitmap
and recovered engines bitmap.

Signed-off-by: Srujana Challa <schalla@marvell.com>
---
.../net/ethernet/marvell/octeontx2/af/mbox.h | 17 +++++++++
.../net/ethernet/marvell/octeontx2/af/rvu.h | 4 +++
.../ethernet/marvell/octeontx2/af/rvu_cpt.c | 35 +++++++++++++++++++
3 files changed, 56 insertions(+)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
index abe86778b064..5727d67e0259 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
@@ -196,6 +196,8 @@ M(CPT_RXC_TIME_CFG, 0xA06, cpt_rxc_time_cfg, cpt_rxc_time_cfg_req, \
msg_rsp) \
M(CPT_CTX_CACHE_SYNC, 0xA07, cpt_ctx_cache_sync, msg_req, msg_rsp) \
M(CPT_LF_RESET, 0xA08, cpt_lf_reset, cpt_lf_rst_req, msg_rsp) \
+M(CPT_FLT_ENG_INFO, 0xA09, cpt_flt_eng_info, cpt_flt_eng_info_req, \
+ cpt_flt_eng_info_rsp) \
/* SDP mbox IDs (range 0x1000 - 0x11FF) */ \
M(SET_SDP_CHAN_INFO, 0x1000, set_sdp_chan_info, sdp_chan_info_msg, msg_rsp) \
M(GET_SDP_CHAN_INFO, 0x1001, get_sdp_chan_info, msg_req, sdp_get_chan_info_msg) \
@@ -1706,6 +1708,21 @@ struct cpt_lf_rst_req {
u32 rsvd;
};

+/* Mailbox message format to request for CPT faulted engines */
+struct cpt_flt_eng_info_req {
+ struct mbox_msghdr hdr;
+ int blkaddr;
+ bool reset;
+ u32 rsvd;
+};
+
+struct cpt_flt_eng_info_rsp {
+ struct mbox_msghdr hdr;
+ u64 flt_eng_map[CPT_10K_AF_INT_VEC_RVU];
+ u64 rcvrd_eng_map[CPT_10K_AF_INT_VEC_RVU];
+ u64 rsvd;
+};
+
struct sdp_node_info {
/* Node to which this PF belons to */
u8 node_id;
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
index 2f480c73ef55..5eea2b6cf6bd 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
@@ -108,6 +108,8 @@ struct rvu_block {
u64 lfreset_reg;
unsigned char name[NAME_SIZE];
struct rvu *rvu;
+ u64 cpt_flt_eng_map[3];
+ u64 cpt_rcvrd_eng_map[3];
};

struct nix_mcast {
@@ -526,6 +528,8 @@ struct rvu {
struct list_head mcs_intrq_head;
/* mcs interrupt queue lock */
spinlock_t mcs_intrq_lock;
+ /* CPT interrupt lock */
+ spinlock_t cpt_intr_lock;
};

static inline void rvu_write64(struct rvu *rvu, u64 block, u64 offset, u64 val)
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c
index d7ca7e953683..f047185f38e0 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c
@@ -70,6 +70,14 @@ static irqreturn_t cpt_af_flt_intr_handler(int vec, void *ptr)

rvu_write64(rvu, blkaddr, CPT_AF_EXEX_CTL2(eng), grp);
rvu_write64(rvu, blkaddr, CPT_AF_EXEX_CTL(eng), val | 1ULL);
+
+ spin_lock(&rvu->cpt_intr_lock);
+ block->cpt_flt_eng_map[vec] |= BIT_ULL(i);
+ val = rvu_read64(rvu, blkaddr, CPT_AF_EXEX_STS(eng));
+ val = val & 0x3;
+ if (val == 0x1 || val == 0x2)
+ block->cpt_rcvrd_eng_map[vec] |= BIT_ULL(i);
+ spin_unlock(&rvu->cpt_intr_lock);
}
rvu_write64(rvu, blkaddr, CPT_AF_FLTX_INT(vec), reg);

@@ -899,6 +907,31 @@ int rvu_mbox_handler_cpt_lf_reset(struct rvu *rvu, struct cpt_lf_rst_req *req,
return 0;
}

+int rvu_mbox_handler_cpt_flt_eng_info(struct rvu *rvu, struct cpt_flt_eng_info_req *req,
+ struct cpt_flt_eng_info_rsp *rsp)
+{
+ struct rvu_block *block;
+ unsigned long flags;
+ int blkaddr, vec;
+
+ blkaddr = validate_and_get_cpt_blkaddr(req->blkaddr);
+ if (blkaddr < 0)
+ return blkaddr;
+
+ block = &rvu->hw->block[blkaddr];
+ for (vec = 0; vec < CPT_10K_AF_INT_VEC_RVU; vec++) {
+ spin_lock_irqsave(&rvu->cpt_intr_lock, flags);
+ rsp->flt_eng_map[vec] = block->cpt_flt_eng_map[vec];
+ rsp->rcvrd_eng_map[vec] = block->cpt_rcvrd_eng_map[vec];
+ if (req->reset) {
+ block->cpt_flt_eng_map[vec] = 0x0;
+ block->cpt_rcvrd_eng_map[vec] = 0x0;
+ }
+ spin_unlock_irqrestore(&rvu->cpt_intr_lock, flags);
+ }
+ return 0;
+}
+
static void cpt_rxc_teardown(struct rvu *rvu, int blkaddr)
{
struct cpt_rxc_time_cfg_req req, prev;
@@ -1182,5 +1215,7 @@ int rvu_cpt_init(struct rvu *rvu)
{
/* Retrieve CPT PF number */
rvu->cpt_pf_num = get_cpt_pf_num(rvu);
+ spin_lock_init(&rvu->cpt_intr_lock);
+
return 0;
}
--
2.25.1