[PATCH v2 net-next,2/8] octeontx2-af: add mbox for CPT LF reset

Srujana Challa
2023-01-11T12:24:45Z

Adds a new mailbox to reset a requested CPT LF.

Signed-off-by: Srujana Challa <schalla@marvell.com>
---
.../net/ethernet/marvell/octeontx2/af/mbox.h | 8 +++++
.../ethernet/marvell/octeontx2/af/rvu_cpt.c | 33 +++++++++++++++++++
2 files changed, 41 insertions(+)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
index d2584ebb7a70..b121e3d9f561 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
@@ -195,6 +195,7 @@ M(CPT_STATS, 0xA05, cpt_sts, cpt_sts_req, cpt_sts_rsp) \
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) \
/* 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) \
@@ -1692,6 +1693,13 @@ struct cpt_inst_lmtst_req {
u64 rsvd;
};

+/* Mailbox message format to request for CPT LF reset */
+struct cpt_lf_rst_req {
+ struct mbox_msghdr hdr;
+ u32 slot;
+ u32 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_cpt.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c
index 1ed16ce515bb..1cd34914cb86 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c
@@ -851,6 +851,39 @@ int rvu_mbox_handler_cpt_ctx_cache_sync(struct rvu *rvu, struct msg_req *req,
return rvu_cpt_ctx_flush(rvu, req->hdr.pcifunc);
}

+int rvu_mbox_handler_cpt_lf_reset(struct rvu *rvu, struct cpt_lf_rst_req *req,
+ struct msg_rsp *rsp)
+{
+ u16 pcifunc = req->hdr.pcifunc;
+ struct rvu_block *block;
+ int cptlf, blkaddr, ret;
+ u16 actual_slot;
+ u64 ctl, ctl2;
+
+ blkaddr = rvu_get_blkaddr_from_slot(rvu, BLKTYPE_CPT, pcifunc,
+ req->slot, &actual_slot);
+ if (blkaddr < 0)
+ return CPT_AF_ERR_LF_INVALID;
+
+ block = &rvu->hw->block[blkaddr];
+
+ cptlf = rvu_get_lf(rvu, block, pcifunc, actual_slot);
+ if (cptlf < 0)
+ return CPT_AF_ERR_LF_INVALID;
+ ctl = rvu_read64(rvu, blkaddr, CPT_AF_LFX_CTL(cptlf));
+ ctl2 = rvu_read64(rvu, blkaddr, CPT_AF_LFX_CTL2(cptlf));
+
+ ret = rvu_lf_reset(rvu, block, cptlf);
+ if (ret)
+ dev_err(rvu->dev, "Failed to reset blkaddr %d LF%d\n",
+ block->addr, cptlf);
+
+ rvu_write64(rvu, blkaddr, CPT_AF_LFX_CTL(cptlf), ctl);
+ rvu_write64(rvu, blkaddr, CPT_AF_LFX_CTL2(cptlf), ctl2);
+
+ return 0;
+}
+
static void cpt_rxc_teardown(struct rvu *rvu, int blkaddr)
{
struct cpt_rxc_time_cfg_req req;
--
2.25.1