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<20231017230342.311227-1-nabihestefan@google.com> X-Mailer: git-send-email 2.42.0.655.g421f12c284-goog Message-ID: <20231017230342.311227-9-nabihestefan@google.com> Subject: [PATCH v3 08/11] hw/net: General GMAC Implementation From: Nabih Estefan To: peter.maydell@linaro.org Cc: qemu-arm@nongnu.org, qemu-devel@nongnu.org, kfting@nuvoton.com, wuhaotsh@google.com, jasonwang@redhat.com, avi.fishman@nuvoton.com, Nabih Estefan Diaz Received-SPF: pass client-ip=2607:f8b0:4864:20::b49; envelope-from=35RIvZQwKCvYlYZgfcqrcdYlemmejc.amkocks-bctcjlmlels.mpe@flex--nabihestefan.bounces.google.com; helo=mail-yb1-xb49.google.com X-Spam_score_int: -95 X-Spam_score: -9.6 X-Spam_bar: --------- X-Spam_report: (-9.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, UPPERCASE_50_75=0.008, USER_IN_DEF_DKIM_WL=-7.5 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Nabih Estefan Diaz - General GMAC Register handling - GMAC IRQ Handling - Added traces in some methods for debugging - Lots of declarations for accessing information on GMAC Descriptors (npcm_gmac.h file) NOTE: With code on this state, the GMAC can boot-up properly and will show up in the ifconfig command on the BMC Google-Rebase-Count: 1 Signed-off-by: Nabih Estefan Diaz Google-Bug-Id: 237557100 Change-Id: I3a4332ee5bab31b919782031a77c5b943f45ca2f --- include/hw/net/npcm_gmac.h | 198 ++++++++++++++++++++++++++++++++++--- 1 file changed, 184 insertions(+), 14 deletions(-) diff --git a/include/hw/net/npcm_gmac.h b/include/hw/net/npcm_gmac.h index e5729e83ea..c97eb6fe6e 100644 --- a/include/hw/net/npcm_gmac.h +++ b/include/hw/net/npcm_gmac.h @@ -34,13 +34,15 @@ struct NPCMGMACRxDesc { }; /* NPCMGMACRxDesc.flags values */ -/* RDES2 and RDES3 are buffer address pointers */ -/* Owner: 0 = software, 1 = gmac */ -#define RX_DESC_RDES0_OWNER_MASK BIT(31) +/* RDES2 and RDES3 are buffer addresses */ +/* Owner: 0 = software, 1 = dma */ +#define RX_DESC_RDES0_OWN BIT(31) /* Destination Address Filter Fail */ -#define RX_DESC_RDES0_DEST_ADDR_FILT_FAIL_MASK BIT(30) -/* Frame length*/ -#define RX_DESC_RDES0_FRAME_LEN_MASK(word) extract32(word, 16, 29) +#define RX_DESC_RDES0_DEST_ADDR_FILT_FAIL BIT(30) +/* Frame length */ +#define RX_DESC_RDES0_FRAME_LEN_MASK(word) extract32(word, 16, 14) +/* Frame length Shift*/ +#define RX_DESC_RDES0_FRAME_LEN_SHIFT 16 /* Error Summary */ #define RX_DESC_RDES0_ERR_SUMM_MASK BIT(15) /* Descriptor Error */ @@ -83,9 +85,9 @@ struct NPCMGMACRxDesc { /* Receive Buffer 2 Size */ #define RX_DESC_RDES1_BFFR2_SZ_SHIFT 11 #define RX_DESC_RDES1_BFFR2_SZ_MASK(word) extract32(word, \ - RX_DESC_RDES1_BFFR2_SZ_SHIFT, 10 + RX_DESC_RDES1_BFFR2_SZ_SHIFT) + RX_DESC_RDES1_BFFR2_SZ_SHIFT, 11) /* Receive Buffer 1 Size */ -#define RX_DESC_RDES1_BFFR1_SZ_MASK(word) extract32(word, 0, 10) +#define RX_DESC_RDES1_BFFR1_SZ_MASK(word) extract32(word, 0, 11) struct NPCMGMACTxDesc { @@ -96,9 +98,9 @@ struct NPCMGMACTxDesc { }; /* NPCMGMACTxDesc.flags values */ -/* TDES2 and TDES3 are buffer address pointers */ +/* TDES2 and TDES3 are buffer addresses */ /* Owner: 0 = software, 1 = gmac */ -#define TX_DESC_TDES0_OWNER_MASK BIT(31) +#define TX_DESC_TDES0_OWN BIT(31) /* Tx Time Stamp Status */ #define TX_DESC_TDES0_TTSS_MASK BIT(17) /* IP Header Error */ @@ -122,7 +124,7 @@ struct NPCMGMACTxDesc { /* VLAN Frame */ #define TX_DESC_TDES0_VLAN_FRM_MASK BIT(7) /* Collision Count */ -#define TX_DESC_TDES0_COLL_CNT_MASK(word) extract32(word, 3, 6) +#define TX_DESC_TDES0_COLL_CNT_MASK(word) extract32(word, 3, 4) /* Excessive Deferral */ #define TX_DESC_TDES0_EXCS_DEF_MASK BIT(2) /* Underflow Error */ @@ -137,7 +139,7 @@ struct NPCMGMACTxDesc { /* Last Segment */ #define TX_DESC_TDES1_FIRST_SEG_MASK BIT(29) /* Checksum Insertion Control */ -#define TX_DESC_TDES1_CHKSM_INS_CTRL_MASK(word) extract32(word, 27, 28) +#define TX_DESC_TDES1_CHKSM_INS_CTRL_MASK(word) extract32(word, 27, 2) /* Disable Cyclic Redundancy Check */ #define TX_DESC_TDES1_DIS_CDC_MASK BIT(26) /* Transmit End of Ring */ @@ -145,9 +147,9 @@ struct NPCMGMACTxDesc { /* Secondary Address Chained */ #define TX_DESC_TDES1_SEC_ADDR_CHND_MASK BIT(24) /* Transmit Buffer 2 Size */ -#define TX_DESC_TDES1_BFFR2_SZ_MASK(word) extract32(word, 11, 21) +#define TX_DESC_TDES1_BFFR2_SZ_MASK(word) extract32(word, 11, 11) /* Transmit Buffer 1 Size */ -#define TX_DESC_TDES1_BFFR1_SZ_MASK(word) extract32(word, 0, 10) +#define TX_DESC_TDES1_BFFR1_SZ_MASK(word) extract32(word, 0, 11) typedef struct NPCMGMACState { SysBusDevice parent; @@ -165,4 +167,172 @@ typedef struct NPCMGMACState { #define TYPE_NPCM_GMAC "npcm-gmac" OBJECT_DECLARE_SIMPLE_TYPE(NPCMGMACState, NPCM_GMAC) +/* Mask for RO bits in Status */ +#define NPCM_DMA_STATUS_RO_MASK(word) (word & 0xfffe0000) +/* Mask for RO bits in Status */ +#define NPCM_DMA_STATUS_W1C_MASK(word) (word & 0x1e7ff) + +/* Transmit Process State */ +#define NPCM_DMA_STATUS_TX_PROCESS_STATE_SHIFT 20 +/* Transmit States */ +#define NPCM_DMA_STATUS_TX_STOPPED_STATE \ + (0b000 << NPCM_DMA_STATUS_TX_PROCESS_STATE_SHIFT) +#define NPCM_DMA_STATUS_TX_RUNNING_FETCHING_STATE \ + (0b001 << NPCM_DMA_STATUS_TX_PROCESS_STATE_SHIFT) +#define NPCM_DMA_STATUS_TX_RUNNING_WAITING_STATE \ + (0b010 << NPCM_DMA_STATUS_TX_PROCESS_STATE_SHIFT) +#define NPCM_DMA_STATUS_TX_RUNNING_READ_STATE \ + (0b011 << NPCM_DMA_STATUS_TX_PROCESS_STATE_SHIFT) +#define NPCM_DMA_STATUS_TX_SUSPENDED_STATE \ + (0b110 << NPCM_DMA_STATUS_TX_PROCESS_STATE_SHIFT) +#define NPCM_DMA_STATUS_TX_RUNNING_CLOSING_STATE \ + (0b111 << NPCM_DMA_STATUS_TX_PROCESS_STATE_SHIFT) +/* Transmit Process State */ +#define NPCM_DMA_STATUS_RX_PROCESS_STATE_SHIFT 17 +/* Receive States */ +#define NPCM_DMA_STATUS_RX_STOPPED_STATE \ + (0b000 << NPCM_DMA_STATUS_RX_PROCESS_STATE_SHIFT) +#define NPCM_DMA_STATUS_RX_RUNNING_FETCHING_STATE \ + (0b001 << NPCM_DMA_STATUS_RX_PROCESS_STATE_SHIFT) +#define NPCM_DMA_STATUS_RX_RUNNING_WAITING_STATE \ + (0b011 << NPCM_DMA_STATUS_RX_PROCESS_STATE_SHIFT) +#define NPCM_DMA_STATUS_RX_SUSPENDED_STATE \ + (0b100 << NPCM_DMA_STATUS_RX_PROCESS_STATE_SHIFT) +#define NPCM_DMA_STATUS_RX_RUNNING_CLOSING_STATE \ + (0b101 << NPCM_DMA_STATUS_RX_PROCESS_STATE_SHIFT) +#define NPCM_DMA_STATUS_RX_RUNNING_TRANSFERRING_STATE \ + (0b111 << NPCM_DMA_STATUS_RX_PROCESS_STATE_SHIFT) + + +/* Early Receive Interrupt */ +#define NPCM_DMA_STATUS_ERI BIT(14) +/* Fatal Bus Error Interrupt */ +#define NPCM_DMA_STATUS_FBI BIT(13) +/* Early transmit Interrupt */ +#define NPCM_DMA_STATUS_ETI BIT(10) +/* Receive Watchdog Timout */ +#define NPCM_DMA_STATUS_RWT BIT(9) +/* Receive Process Stopped */ +#define NPCM_DMA_STATUS_RPS BIT(8) +/* Receive Buffer Unavailable */ +#define NPCM_DMA_STATUS_RU BIT(7) +/* Receive Interrupt */ +#define NPCM_DMA_STATUS_RI BIT(6) +/* Transmit Underflow */ +#define NPCM_DMA_STATUS_UNF BIT(5) +/* Receive Overflow */ +#define NPCM_DMA_STATUS_OVF BIT(4) +/* Transmit Jabber Timeout */ +#define NPCM_DMA_STATUS_TJT BIT(3) +/* Transmit Buffer Unavailable */ +#define NPCM_DMA_STATUS_TU BIT(2) +/* Transmit Process Stopped */ +#define NPCM_DMA_STATUS_TPS BIT(1) +/* Transmit Interrupt */ +#define NPCM_DMA_STATUS_TI BIT(0) + +/* Normal Interrupt Summary */ +#define NPCM_DMA_STATUS_NIS BIT(16) +/* Interrupts enabled by NIE */ +#define NPCM_DMA_STATUS_NIS_BITS (NPCM_DMA_STATUS_TI | \ + NPCM_DMA_STATUS_TU | \ + NPCM_DMA_STATUS_RI | \ + NPCM_DMA_STATUS_ERI) +/* Abnormal Interrupt Summary */ +#define NPCM_DMA_STATUS_AIS BIT(15) +/* Interrupts enabled by AIE */ +#define NPCM_DMA_STATUS_AIS_BITS (NPCM_DMA_STATUS_TPS | \ + NPCM_DMA_STATUS_TJT | \ + NPCM_DMA_STATUS_OVF | \ + NPCM_DMA_STATUS_UNF | \ + NPCM_DMA_STATUS_RU | \ + NPCM_DMA_STATUS_RPS | \ + NPCM_DMA_STATUS_RWT | \ + NPCM_DMA_STATUS_ETI | \ + NPCM_DMA_STATUS_FBI) + +/* Early Receive Interrupt Enable */ +#define NPCM_DMA_INTR_ENAB_ERE BIT(14) +/* Fatal Bus Error Interrupt Enable */ +#define NPCM_DMA_INTR_ENAB_FBE BIT(13) +/* Early transmit Interrupt Enable */ +#define NPCM_DMA_INTR_ENAB_ETE BIT(10) +/* Receive Watchdog Timout Enable */ +#define NPCM_DMA_INTR_ENAB_RWE BIT(9) +/* Receive Process Stopped Enable */ +#define NPCM_DMA_INTR_ENAB_RSE BIT(8) +/* Receive Buffer Unavailable Enable */ +#define NPCM_DMA_INTR_ENAB_RUE BIT(7) +/* Receive Interrupt Enable */ +#define NPCM_DMA_INTR_ENAB_RIE BIT(6) +/* Transmit Underflow Enable */ +#define NPCM_DMA_INTR_ENAB_UNE BIT(5) +/* Receive Overflow Enable */ +#define NPCM_DMA_INTR_ENAB_OVE BIT(4) +/* Transmit Jabber Timeout Enable */ +#define NPCM_DMA_INTR_ENAB_TJE BIT(3) +/* Transmit Buffer Unavailable Enable */ +#define NPCM_DMA_INTR_ENAB_TUE BIT(2) +/* Transmit Process Stopped Enable */ +#define NPCM_DMA_INTR_ENAB_TSE BIT(1) +/* Transmit Interrupt Enable */ +#define NPCM_DMA_INTR_ENAB_TIE BIT(0) + +/* Normal Interrupt Summary Enable */ +#define NPCM_DMA_INTR_ENAB_NIE BIT(16) +/* Interrupts enabled by NIE Enable */ +#define NPCM_DMA_INTR_ENAB_NIE_BITS (NPCM_DMA_INTR_ENAB_TIE | \ + NPCM_DMA_INTR_ENAB_TUE | \ + NPCM_DMA_INTR_ENAB_RIE | \ + NPCM_DMA_INTR_ENAB_ERE) +/* Abnormal Interrupt Summary Enable */ +#define NPCM_DMA_INTR_ENAB_AIE BIT(15) +/* Interrupts enabled by AIE Enable */ +#define NPCM_DMA_INTR_ENAB_AIE_BITS (NPCM_DMA_INTR_ENAB_TSE | \ + NPCM_DMA_INTR_ENAB_TJE | \ + NPCM_DMA_INTR_ENAB_OVE | \ + NPCM_DMA_INTR_ENAB_UNE | \ + NPCM_DMA_INTR_ENAB_RUE | \ + NPCM_DMA_INTR_ENAB_RSE | \ + NPCM_DMA_INTR_ENAB_RWE | \ + NPCM_DMA_INTR_ENAB_ETE | \ + NPCM_DMA_INTR_ENAB_FBE) + +/* Flushing Disabled */ +#define NPCM_DMA_CONTROL_FLUSH_MASK BIT(24) +/* Start/stop Transmit */ +#define NPCM_DMA_CONTROL_START_STOP_TX BIT(13) +/* Next receive descriptor start address */ +#define NPCM_DMA_HOST_RX_DESC_MASK(word) ((uint32_t) (word) & ~3u) +/* Next transmit descriptor start address */ +#define NPCM_DMA_HOST_TX_DESC_MASK(word) ((uint32_t) (word) & ~3u) + +/* Receive enable */ +#define NPCM_GMAC_MAC_CONFIG_RX_EN BIT(2) +/* Transmit enable */ +#define NPCM_GMAC_MAC_CONFIG_TX_EN BIT(3) + +/* Frame Receive All */ +#define NPCM_GMAC_FRAME_FILTER_REC_ALL_MASK BIT(31) +/* Frame HPF Filter*/ +#define NPCM_GMAC_FRAME_FILTER_HPF_MASK BIT(10) +/* Frame SAF Filter*/ +#define NPCM_GMAC_FRAME_FILTER_SAF_MASK BIT(9) +/* Frame SAIF Filter*/ +#define NPCM_GMAC_FRAME_FILTER_SAIF_MASK BIT(8) +/* Frame PCF Filter*/ +#define NPCM_GMAC_FRAME_FILTER_PCF_MASK BIT(word) extract32((word), 6, 2) +/* Frame DBF Filter*/ +#define NPCM_GMAC_FRAME_FILTER_DBF_MASK BIT(5) +/* Frame PM Filter*/ +#define NPCM_GMAC_FRAME_FILTER_PM_MASK BIT(4) +/* Frame DAIF Filter*/ +#define NPCM_GMAC_FRAME_FILTER_DAIF_MASK BIT(3) +/* Frame HMC Filter*/ +#define NPCM_GMAC_FRAME_FILTER_HMC_MASK BIT(2) +/* Frame HUC Filter*/ +#define NPCM_GMAC_FRAME_FILTER_HUC_MASK BIT(1) +/* Frame PR Filter*/ +#define NPCM_GMAC_FRAME_FILTER_PR_MASK BIT(0) + #endif /* NPCM_GMAC_H */