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octeontx2-af: Support to retrieve CGX LMAC stats 

This patch adds support for a RVU PF/VF driver to retrieve
it's mapped CGX LMAC Rx and Tx stats from AF via mbox.
New mailbox msg is added is added.

Signed-off-by: Christina Jacob <cjacob@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Christina Jacob 2018-10-16 16:57:07 +05:30 committed by David S. Miller
parent 1435f66a28
commit 66208910e5
5 changed files with 76 additions and 0 deletions
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22
drivers/net/ethernet/marvell/octeontx2/af/cgx.c
View File

@ -119,6 +119,28 @@ void *cgx_get_pdata(int cgx_id)
}
EXPORT_SYMBOL(cgx_get_pdata);
int cgx_get_rx_stats(void *cgxd, int lmac_id, int idx, u64 *rx_stat)
{
struct cgx *cgx = cgxd;
if (!cgx || lmac_id >= cgx->lmac_count)
return -ENODEV;
*rx_stat = cgx_read(cgx, lmac_id, CGXX_CMRX_RX_STAT0 + (idx * 8));
return 0;
}
EXPORT_SYMBOL(cgx_get_rx_stats);
int cgx_get_tx_stats(void *cgxd, int lmac_id, int idx, u64 *tx_stat)
{
struct cgx *cgx = cgxd;
if (!cgx || lmac_id >= cgx->lmac_count)
return -ENODEV;
*tx_stat = cgx_read(cgx, lmac_id, CGXX_CMRX_TX_STAT0 + (idx * 8));
return 0;
}
EXPORT_SYMBOL(cgx_get_tx_stats);
int cgx_lmac_rx_tx_enable(void *cgxd, int lmac_id, bool enable)
{
struct cgx *cgx = cgxd;

4
drivers/net/ethernet/marvell/octeontx2/af/cgx.h
View File

@ -32,7 +32,9 @@
#define FW_CGX_INT BIT_ULL(1)
#define CGXX_CMRX_INT_ENA_W1S 0x058
#define CGXX_CMRX_RX_ID_MAP 0x060
#define CGXX_CMRX_RX_STAT0 0x070
#define CGXX_CMRX_RX_LMACS 0x128
#define CGXX_CMRX_TX_STAT0 0x700
#define CGXX_SCRATCH0_REG 0x1050
#define CGXX_SCRATCH1_REG 0x1058
#define CGX_CONST 0x2000
@ -66,5 +68,7 @@ int cgx_get_cgx_cnt(void);
int cgx_get_lmac_cnt(void *cgxd);
void *cgx_get_pdata(int cgx_id);
int cgx_lmac_evh_register(struct cgx_event_cb *cb, void *cgxd, int lmac_id);
int cgx_get_tx_stats(void *cgxd, int lmac_id, int idx, u64 *tx_stat);
int cgx_get_rx_stats(void *cgxd, int lmac_id, int idx, u64 *rx_stat);
int cgx_lmac_rx_tx_enable(void *cgxd, int lmac_id, bool enable);
#endif /* CGX_H */

11
drivers/net/ethernet/marvell/octeontx2/af/mbox.h
View File

@ -126,6 +126,7 @@ M(MSIX_OFFSET, 0x004, msg_req, msix_offset_rsp) \
/* CGX mbox IDs (range 0x200 - 0x3FF) */ \
M(CGX_START_RXTX, 0x200, msg_req, msg_rsp) \
M(CGX_STOP_RXTX, 0x201, msg_req, msg_rsp) \
M(CGX_STATS, 0x202, msg_req, cgx_stats_rsp) \
/* NPA mbox IDs (range 0x400 - 0x5FF) */ \
/* SSO/SSOW mbox IDs (range 0x600 - 0x7FF) */ \
/* TIM mbox IDs (range 0x800 - 0x9FF) */ \
@ -210,4 +211,14 @@ struct msix_offset_rsp {
u16 cptlf_msixoff[MAX_RVU_BLKLF_CNT];
};
/* CGX mbox message formats */
struct cgx_stats_rsp {
struct mbox_msghdr hdr;
#define CGX_RX_STATS_COUNT 13
#define CGX_TX_STATS_COUNT 18
u64 rx_stats[CGX_RX_STATS_COUNT];
u64 tx_stats[CGX_TX_STATS_COUNT];
};
#endif /* MBOX_H */

2
drivers/net/ethernet/marvell/octeontx2/af/rvu.h
View File

@ -171,4 +171,6 @@ int rvu_mbox_handler_CGX_START_RXTX(struct rvu *rvu, struct msg_req *req,
struct msg_rsp *rsp);
int rvu_mbox_handler_CGX_STOP_RXTX(struct rvu *rvu, struct msg_req *req,
struct msg_rsp *rsp);
int rvu_mbox_handler_CGX_STATS(struct rvu *rvu, struct msg_req *req,
struct cgx_stats_rsp *rsp);
#endif /* RVU_H */

37
drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
View File

@ -224,3 +224,40 @@ int rvu_mbox_handler_CGX_STOP_RXTX(struct rvu *rvu, struct msg_req *req,
rvu_cgx_config_rxtx(rvu, req->hdr.pcifunc, false);
return 0;
}
int rvu_mbox_handler_CGX_STATS(struct rvu *rvu, struct msg_req *req,
struct cgx_stats_rsp *rsp)
{
int pf = rvu_get_pf(req->hdr.pcifunc);
int stat = 0, err = 0;
u64 tx_stat, rx_stat;
u8 cgx_idx, lmac;
void *cgxd;
if ((req->hdr.pcifunc & RVU_PFVF_FUNC_MASK) ||
!is_pf_cgxmapped(rvu, pf))
return -ENODEV;
rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_idx, &lmac);
cgxd = rvu_cgx_pdata(cgx_idx, rvu);
/* Rx stats */
while (stat < CGX_RX_STATS_COUNT) {
err = cgx_get_rx_stats(cgxd, lmac, stat, &rx_stat);
if (err)
return err;
rsp->rx_stats[stat] = rx_stat;
stat++;
}
/* Tx stats */
stat = 0;
while (stat < CGX_TX_STATS_COUNT) {
err = cgx_get_tx_stats(cgxd, lmac, stat, &tx_stat);
if (err)
return err;
rsp->tx_stats[stat] = tx_stat;
stat++;
}
return 0;
}