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path: root/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
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Diffstat (limited to 'drivers/net/ethernet/cavium/thunder/thunder_bgx.c')
-rw-r--r--drivers/net/ethernet/cavium/thunder/thunder_bgx.c97
1 files changed, 69 insertions, 28 deletions
diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
index 0bf8d244185b..4ddc760afe03 100644
--- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
+++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
@@ -48,9 +48,11 @@ struct bgx {
u8 bgx_id;
struct lmac lmac[MAX_LMAC_PER_BGX];
int lmac_count;
+ u8 max_lmac;
void __iomem *reg_base;
struct pci_dev *pdev;
bool is_81xx;
+ bool is_rgx;
};
static struct bgx *bgx_vnic[MAX_BGX_THUNDER];
@@ -61,6 +63,7 @@ static int bgx_xaui_check_link(struct lmac *lmac);
/* Supported devices */
static const struct pci_device_id bgx_id_table[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, PCI_DEVICE_ID_THUNDER_BGX) },
+ { PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, PCI_DEVICE_ID_THUNDER_RGX) },
{ 0, } /* end of table */
};
@@ -124,7 +127,7 @@ unsigned bgx_get_map(int node)
int i;
unsigned map = 0;
- for (i = 0; i < MAX_BGX_PER_CN88XX; i++) {
+ for (i = 0; i < MAX_BGX_PER_CN81XX; i++) {
if (bgx_vnic[(node * MAX_BGX_PER_CN88XX) + i])
map |= (1 << i);
}
@@ -189,10 +192,12 @@ EXPORT_SYMBOL(bgx_set_lmac_mac);
void bgx_lmac_rx_tx_enable(int node, int bgx_idx, int lmacid, bool enable)
{
struct bgx *bgx = bgx_vnic[(node * MAX_BGX_PER_CN88XX) + bgx_idx];
+ struct lmac *lmac;
u64 cfg;
if (!bgx)
return;
+ lmac = &bgx->lmac[lmacid];
cfg = bgx_reg_read(bgx, lmacid, BGX_CMRX_CFG);
if (enable)
@@ -200,6 +205,9 @@ void bgx_lmac_rx_tx_enable(int node, int bgx_idx, int lmacid, bool enable)
else
cfg &= ~(CMR_PKT_RX_EN | CMR_PKT_TX_EN);
bgx_reg_write(bgx, lmacid, BGX_CMRX_CFG, cfg);
+
+ if (bgx->is_rgx)
+ xcv_setup_link(enable ? lmac->link_up : 0, lmac->last_speed);
}
EXPORT_SYMBOL(bgx_lmac_rx_tx_enable);
@@ -266,9 +274,12 @@ static void bgx_sgmii_change_link_state(struct lmac *lmac)
port_cfg = bgx_reg_read(bgx, lmac->lmacid, BGX_GMP_GMI_PRTX_CFG);
- /* renable lmac */
+ /* Re-enable lmac */
cmr_cfg |= CMR_EN;
bgx_reg_write(bgx, lmac->lmacid, BGX_CMRX_CFG, cmr_cfg);
+
+ if (bgx->is_rgx && (cmr_cfg & (CMR_PKT_RX_EN | CMR_PKT_TX_EN)))
+ xcv_setup_link(lmac->link_up, lmac->last_speed);
}
static void bgx_lmac_handler(struct net_device *netdev)
@@ -418,10 +429,12 @@ static int bgx_lmac_sgmii_init(struct bgx *bgx, struct lmac *lmac)
return 0;
}
- if (bgx_poll_reg(bgx, lmacid, BGX_GMP_PCS_MRX_STATUS,
- PCS_MRX_STATUS_AN_CPT, false)) {
- dev_err(&bgx->pdev->dev, "BGX AN_CPT not completed\n");
- return -1;
+ if (lmac->lmac_type == BGX_MODE_SGMII) {
+ if (bgx_poll_reg(bgx, lmacid, BGX_GMP_PCS_MRX_STATUS,
+ PCS_MRX_STATUS_AN_CPT, false)) {
+ dev_err(&bgx->pdev->dev, "BGX AN_CPT not completed\n");
+ return -1;
+ }
}
return 0;
@@ -663,6 +676,8 @@ static int phy_interface_mode(u8 lmac_type)
{
if (lmac_type == BGX_MODE_QSGMII)
return PHY_INTERFACE_MODE_QSGMII;
+ if (lmac_type == BGX_MODE_RGMII)
+ return PHY_INTERFACE_MODE_RGMII;
return PHY_INTERFACE_MODE_SGMII;
}
@@ -676,7 +691,8 @@ static int bgx_lmac_enable(struct bgx *bgx, u8 lmacid)
lmac->bgx = bgx;
if ((lmac->lmac_type == BGX_MODE_SGMII) ||
- (lmac->lmac_type == BGX_MODE_QSGMII)) {
+ (lmac->lmac_type == BGX_MODE_QSGMII) ||
+ (lmac->lmac_type == BGX_MODE_RGMII)) {
lmac->is_sgmii = 1;
if (bgx_lmac_sgmii_init(bgx, lmac))
return -1;
@@ -829,7 +845,7 @@ static void bgx_print_qlm_mode(struct bgx *bgx, u8 lmacid)
char str[20];
u8 dlm;
- if (lmacid > MAX_LMAC_PER_BGX)
+ if (lmacid > bgx->max_lmac)
return;
lmac = &bgx->lmac[lmacid];
@@ -870,6 +886,9 @@ static void bgx_print_qlm_mode(struct bgx *bgx, u8 lmacid)
return;
dev_info(dev, "%s: QSGMII\n", (char *)str);
break;
+ case BGX_MODE_RGMII:
+ dev_info(dev, "%s: RGMII\n", (char *)str);
+ break;
case BGX_MODE_INVALID:
/* Nothing to do */
break;
@@ -885,6 +904,7 @@ static void lmac_set_lane2sds(struct bgx *bgx, struct lmac *lmac)
break;
case BGX_MODE_XAUI:
case BGX_MODE_XLAUI:
+ case BGX_MODE_RGMII:
lmac->lane_to_sds = 0xE4;
break;
case BGX_MODE_RXAUI:
@@ -904,6 +924,18 @@ static void lmac_set_lane2sds(struct bgx *bgx, struct lmac *lmac)
}
}
+static void lmac_set_training(struct bgx *bgx, struct lmac *lmac, int lmacid)
+{
+ if ((lmac->lmac_type != BGX_MODE_10G_KR) &&
+ (lmac->lmac_type != BGX_MODE_40G_KR)) {
+ lmac->use_training = 0;
+ return;
+ }
+
+ lmac->use_training = bgx_reg_read(bgx, lmacid, BGX_SPUX_BR_PMD_CRTL) &
+ SPU_PMD_CRTL_TRAIN_EN;
+}
+
static void bgx_set_lmac_config(struct bgx *bgx, u8 idx)
{
struct lmac *lmac;
@@ -914,15 +946,15 @@ static void bgx_set_lmac_config(struct bgx *bgx, u8 idx)
lmac = &bgx->lmac[idx];
- if (!bgx->is_81xx) {
+ if (!bgx->is_81xx || bgx->is_rgx) {
/* Read LMAC0 type to figure out QLM mode
* This is configured by low level firmware
*/
cmr_cfg = bgx_reg_read(bgx, 0, BGX_CMRX_CFG);
lmac->lmac_type = (cmr_cfg >> 8) & 0x07;
- lmac->use_training =
- bgx_reg_read(bgx, 0, BGX_SPUX_BR_PMD_CRTL) &
- SPU_PMD_CRTL_TRAIN_EN;
+ if (bgx->is_rgx)
+ lmac->lmac_type = BGX_MODE_RGMII;
+ lmac_set_training(bgx, lmac, 0);
lmac_set_lane2sds(bgx, lmac);
return;
}
@@ -939,17 +971,13 @@ static void bgx_set_lmac_config(struct bgx *bgx, u8 idx)
lmac->lmac_type = BGX_MODE_INVALID;
else
lmac->lmac_type = lmac_type;
- lmac->use_training =
- bgx_reg_read(bgx, idx, BGX_SPUX_BR_PMD_CRTL) &
- SPU_PMD_CRTL_TRAIN_EN;
+ lmac_set_training(bgx, lmac, lmac->lmacid);
lmac_set_lane2sds(bgx, lmac);
/* Set LMAC type of other lmac on same DLM i.e LMAC 1/3 */
olmac = &bgx->lmac[idx + 1];
olmac->lmac_type = lmac->lmac_type;
- olmac->use_training =
- bgx_reg_read(bgx, idx + 1, BGX_SPUX_BR_PMD_CRTL) &
- SPU_PMD_CRTL_TRAIN_EN;
+ lmac_set_training(bgx, olmac, olmac->lmacid);
lmac_set_lane2sds(bgx, olmac);
}
}
@@ -976,21 +1004,22 @@ static void bgx_get_qlm_mode(struct bgx *bgx)
u8 idx;
/* Init all LMAC's type to invalid */
- for (idx = 0; idx < MAX_LMAC_PER_BGX; idx++) {
+ for (idx = 0; idx < bgx->max_lmac; idx++) {
lmac = &bgx->lmac[idx];
- lmac->lmac_type = BGX_MODE_INVALID;
lmac->lmacid = idx;
+ lmac->lmac_type = BGX_MODE_INVALID;
+ lmac->use_training = false;
}
/* It is assumed that low level firmware sets this value */
bgx->lmac_count = bgx_reg_read(bgx, 0, BGX_CMR_RX_LMACS) & 0x7;
- if (bgx->lmac_count > MAX_LMAC_PER_BGX)
- bgx->lmac_count = MAX_LMAC_PER_BGX;
+ if (bgx->lmac_count > bgx->max_lmac)
+ bgx->lmac_count = bgx->max_lmac;
- for (idx = 0; idx < MAX_LMAC_PER_BGX; idx++)
+ for (idx = 0; idx < bgx->max_lmac; idx++)
bgx_set_lmac_config(bgx, idx);
- if (!bgx->is_81xx) {
+ if (!bgx->is_81xx || bgx->is_rgx) {
bgx_print_qlm_mode(bgx, 0);
return;
}
@@ -1140,7 +1169,7 @@ static int bgx_init_of_phy(struct bgx *bgx)
}
lmac++;
- if (lmac == MAX_LMAC_PER_BGX) {
+ if (lmac == bgx->max_lmac) {
of_node_put(node);
break;
}
@@ -1218,10 +1247,22 @@ static int bgx_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
err = -ENOMEM;
goto err_release_regions;
}
- bgx->bgx_id = (pci_resource_start(pdev, PCI_CFG_REG_BAR_NUM) >> 24) & 1;
- bgx->bgx_id += nic_get_node_id(pdev) * MAX_BGX_PER_CN88XX;
- bgx_vnic[bgx->bgx_id] = bgx;
+ pci_read_config_word(pdev, PCI_DEVICE_ID, &sdevid);
+ if (sdevid != PCI_DEVICE_ID_THUNDER_RGX) {
+ bgx->bgx_id =
+ (pci_resource_start(pdev, PCI_CFG_REG_BAR_NUM) >> 24) & 1;
+ bgx->bgx_id += nic_get_node_id(pdev) * MAX_BGX_PER_CN88XX;
+ bgx->max_lmac = MAX_LMAC_PER_BGX;
+ bgx_vnic[bgx->bgx_id] = bgx;
+ } else {
+ bgx->is_rgx = true;
+ bgx->max_lmac = 1;
+ bgx->bgx_id = MAX_BGX_PER_CN81XX - 1;
+ bgx_vnic[bgx->bgx_id] = bgx;
+ xcv_init_hw();
+ }
+
bgx_get_qlm_mode(bgx);
err = bgx_init_phy(bgx);
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